List of works

• A. Ingo Grohmann, M. Seidel, S. A. W. Itting, Ray-Guang Cheng, M. Reisslein and F. H. P. Fitzek, "Multi-UE 5G RAN Measurements: A Gamut of Architectural Options," in IEEE Access, vol. 13, pp. 1846-1866, 2025, doi: 10.1109/ACCESS.2024.3523467 (SCI, EI).

• Wilfrid Azariah, Fransiscus Asisi Bimo, Chih-Wei Lin, Ray-Guang Cheng*, Navid Nikaein, and Rittwik Jana, “A survey on open radio access networks: Challenges, research directions, and open source approaches,” Special Issue of Future Wireless Communication Networks (Volume II), Sensors 2024, 24, 1038, Feb. 2024 (SCI, EI).

• Ting-An Lin and Ray-Guang Cheng*, “Analytical modeling and performance evaluation of beam-based random access protocol for 5G beamforming networks,” IEEE Internet of Things Journal, Aug. 2023.

• Yeremia Nikanor Nugroho, Ruki Harwahyu, Riri Fitri Sari*, Navid Nikaein, and Ray-Guang Cheng, “Performance evaluation of anomaly detection system on portable LTE telecommunication networks Using OpenAirInterface and ELK,” International Journal of Technology, vol. 4, no. 3, pp. 549-560, May 2023.

• Nadhif Muhammad Rekoputra, Chia-Wei Tseng, Jui-Tang Wang, Shu-Hao Liang*, Ray-Guang Cheng*, Yueh-Feng Li, and Wen-Hao Yang, “Implementation and evaluation of 5G MEC-enabled smart factory,” MDPI Electronics, vol. 12, no. 6, 1310, March 2023.

• Ray-Guang Cheng*, Chi-Ming Yang, Bariq S. Firmansyah, and Ruki Harwahyu, “Uplink OFDMA-based random access mechanism with bursty arrivals for IEEE 802.11ax systems,” IEEE Networking Letters, vol. 4, no. 1, pp. 34-38, March 2022.

• Shuo-Yan Chou, Anindhita Dewabharata, Yudhistira C. Bayu, Ray-Guang Cheng, and Ferani Eva Zulvia*, “An automatic energy saving strategy for a water dispenser based on user behaviour,” Advanced Engineering Informatics, accepted, Dec. 2021.

• Derni Ageng, Chin-Ya Huang*, and Ray-Guang Cheng, "A short-term household load forecasting framework using LSTM and data preparation," IEEE Access, accepted, Dec. 2021.

• Ruki Harwahyu*, Ray-Guang Cheng, Da-Hao Liu, and Riri Fitri Sari, “Fair configuration scheme for random access in NB-IoT with multiple coverage enhancement levels,” IEEE Transactions on Mobile Computing, vol. 20, no. 4, pp. 1408-1419, April 2021.

• Riri Fitri Sari, Ruki Harwahyu*, and Ray-Guang Cheng, “Load estimation and connection request barring for random access in massive C-IoT,” IEEE Internet of Things Journal, vol. 7, no. 7, pp. 6539-6549, July 2020 (SCI, EI).

• Zdenek Becvar*, Ray-Guang Cheng, Martin Charvat, and Pavel Mach, “Mobility management for D2D communication combining radio frequency and visible light communications bands,” Wireless Networks, Springer, June 2020 (SCI, EI).

• JenHui Chen*, Ray-Guang Cheng, Obinna Agbodike, and Yu-Syuan Lyu, “A dynamic backoff window scheme for machine-type communications in cyber-physical systems,” IEEE Access, vol. 8, pp. 31045-31056, Feb. 2020 (SCI, EI).

• Ruki Harwahyu, Ray-Guang Cheng*, Wan-Jung Tsai, Jeng-Kuang Hwang, and Giuseppe Bianchi, “Repetitions v.s. retransmissions: Trade-off in configuring NB-IoT random access channels,” IEEE Internet of Things Journal, vol. 6, no. 2, pp. 3796-3805, April 2019 (SCI, EI).

• Ray-Guang Cheng*, Zdenek Becvar, Yi-Shin Huang, Giuseppe Bianchi, and Ruki Harwahyu, “Two-Phase Random Access Procedure for LTE-A Networks,” IEEE Transactions on Wireless Communications, vol. 18, no. 4, pp. 2374-2387, April 2019 (SCI, EI).

• Ruki Harwahyu, Ray-Guang Cheng*, Chia-Hung Wei, and Riri Fitri Sari, “Optimization of random access channel in NB-IoT,” IEEE Internet of Things Journal, vol. 5, no. 1, pp. 391-402, Feb. 2018 (SCI, EI).

• Ray-Guang Cheng*, Zdenek Becvar, and Ping-Shun Yang, “Modeling of distributed queueing-based random access for machine type communications in mobile networks,” IEEE Communications Letters, vol. 22, no. 1, pp. 129-132, Jan. 2018 (SCI, EI).

• Ruki Harwahyu, Jonathan Loo, and Ray-Guang Cheng*, Yu-Yi Chu, “Smoothing the drive: Critical access for intelligent transportation systems,” IEEE Vehicular Technology Magazine, vol. 12, no 2, pp. 60-68, June 2017. (SCI, EI)

• Doan Perdana*, Ray-Guang Cheng, Riri Fitri Sari, “Analytical study of the impact of the mobility node on the multi-channel MAC coordination scheme of the IEEE 1609.4 standard,” KSII Transactions on Internet and Information Systems, vol. 11, no. 1, pp. 61-77, Jan. 2017. (SCI)

• Ruki Harwahyu, Xian Wang, Riri Fitri Sari, and Ray-Guang Cheng*, “Analysis of group paging with pre-backoff,” EURASIP Journal on Wireless Communications and Networking, vol. 2015:34, Dec. 2015 (SCI, EI)

• Xian Wang, Keqin Li*, Ray-Guang Cheng, Pingzhi Fan, Xianfu Lei, and Rose Qingyang Hu, “Cost analysis of a hybrid movement- and time-based location update scheme in cellular networks,” IEEE Transaction on Vehicular Technology, vol. 64, no. 11, pp. 5314-5326, Nov. 2015. (SCI, EI)

• Chia-Hung Wei, Ray-Guang Cheng*, and You-Shin Lin, “Analysis of slotted-access-based channel access control protocol for LTE-Advanced networks,” Wireless Personal Communications, Springer, vol. 85, no. 1, pp. 9-27, Nov. 2015. (SCI, EI)

• Ray-Guang Cheng*, Firas Al-Taee, Jenhui Chen, and Chia-Hung Wei, “A dynamic resource allocation scheme for group paging in LTE-Advanced networks,” IEEE Internet of Things Journal, vol.2, no.5, pp.427-434, Oct. 2015 (SCI, EI).

• Ray-Guang Cheng*, Nien-Sheng Chen, Yu-Feng Chou, and Zdenek Bacvar, “Offloading multiple mobile data contents through opportunistic device-to-device communications,” Wireless Personal Communications, Springer, vol. 84, no. 3, pp. 1963-1979, Sep. 2015 (DOI: 10.1007/s11277-015-2492-1) (SCI, EI).

• Ray-Guang Cheng*, Dan-Wu Chen, Jen-Hui Chen, and Chia-Hung Wei, “Modeling and analysis of an extended access barring scheme for machine-type communications in LTE networks,” IEEE Transaction on Wireless Communications, vol. 14, no. 6, pp. 2956-2968, June 2015 (SCI, EI)

• Chia-Hung Wei, Giuseppe Bianchi, and Ray-Guang Cheng*, “Modeling and analysis of random-access channels with bursty arrivals in OFDMA wireless networks,” IEEE Transactions on Wireless Communications, vol. 14, no. 4, pp. 1940-1953, April 2015. (SCI, EI)

• Wei-Ling Hsu, Ping-Chen Lin, and Ray-Guang Cheng*, “A framework design for load-balanced green access networks supporting GSM femtocell,” Smart Science, vol. 3, no. 1, pp. 40-45, Feb. 2015.

• Ping-Chen Lin, Ray-Guang Cheng*, and Yu-Ren Chang, “Dynamic flow control algorithm for LTE-Advanced relay networks,” IEEE Transaction on Vehicular Technology, vol. 63, no. 1, pp. 334-343, Jan. 2014. (SCI, EI)

• Fang Lo, Yu-Feng Chou, Ray-Guang Cheng*, Marek Kalika, Radek Holy, and Jana Kalikova “Generalized radio resource management for overlapping MBS zones,” Advances in Electrical and Electronic Engineering, vol. 11, no. 5, pp. 309-315, Nov. 2013.

• Chia-Hung Wei, Ray-Guang Cheng*, and Shaio-Li Tsao, “Performance analysis of group paging for machine-type communications in LTE networks,” IEEE Transaction on Vehicular Technology, vol. 66, no. 7, pp. 3371-3382, Sep. 2013 (SCI, EI)

• Yu-Feng Chou, Shin-Heng Huang, and Ray-Guang Cheng*, “Modeling information dissemination in generalized social networks,” IEEE Communications Letters, vol. 17, no. 7, pp. 1356-1359, July 2013. (SCI, EI)

• Chia-Hung Wei, Ping-Chen Lin, and Ray-Guang Cheng*, “Comment on “An efficient random access scheme for OFDMA systems with implicit message transmission,”” IEEE Transaction on Wireless Communications, vol. 12, no. 1, pp. 414-415, Jan. 2013. (SCI, EI)

• Chia-Hung Wei, Ray-Guang Cheng*, and Shaio-Li Tsao, “Modeling and estimation of one-shot random access for finite-user multichannel slotted ALOHA systems,” IEEE Communications Letters, vol. 16, no. 8, pp. 1196-1199, Aug. 2012. (SCI, EI)

• Ping-Chen Lin, Ray-Guang Cheng*, and Li-Hung Liao, “Performance analysis of two-level QoS scheduler for wireless backhaul networks,” IEEE Transaction on Vehicular Technology, vol. 61, no. 3, pp. 1361-1371, March 2012. (SCI, EI)

• Ray-Guang Cheng* and Kuo-Jui Huang, “Resource allocation for overlapping MBS zones,” EURASIP Journal on Wireless Communications and Networking, 2011:205612, doi:10.1155/2011/205612, March 2011. (SCI, EI)

• Ray-Guang Cheng*, Jia-Yang Hung, and Yao-Yuan Liu, “Power-strength-based selective-forwarding (PSF) method for multihop cellular networks,” IEEE Transaction on Vehicular Technology, vol. 59, no. 7, pp. 3455-3467, Sep. 2010. (SCI, EI)

• Ray-Guang Cheng*, Che-Sheng Lin, and Feng-Ming Yang, “Dynamic rate selection (DRS) scheme for UWB systems supporting video multicast services,” Journal of the Chinese Institute of Engineers (JCIE), vol. 33, no. 5, pp. 727-735, July, 2010. (SCI-E, EI)

• Li-Fong Lin, Chung-Ju Chang*, and Ray-Guang Cheng, “A predictive intelligent traffic controller for broadband multimedia IP networks,” Journal of Internet Technology (invited paper), vol. 9, no. 3, Aug. 2008. (SCI-E, EI)

• Ray-Guang Cheng*, Ruei-I Chang, and Kuo-Lun Hua, ‘‘IWTRP: Spatial-reuse enhancement of the wireless token ring protocol,” IEEE Communications Letters, vol. 11, no. 8, pp. 701-703, Aug. 2007. (SCI, EI)

• Chung-Ju Chang*, Ray-Guang Cheng, Hao-Tang Shih, Yih-Shen Chen, “Maximum freedom last scheduling algorithm for downlinks of DSRC networks," IEEE Transactions on Intelligent Transportation Systems, vol. 8, no. 2, pp. 223-232, June 2007. (SCI, EI)

• Ray-Guang Cheng*, Shin-Ming Cheng, and Phone Lin, “Power-efficient routing (PER) mechanism for ODMA systems,” IEEE Transactions on Vehicular Technology, vol. 55, no. 4, pp. 1311-1319, July 2006 (SCI, EI)

• Ray-Guang Cheng, Chung-Ju Chang*, Chih-Yung Shih, and Yih-Shen Chen, “A new scheme to achieve weighted fairness for WLAN supporting multimedia services,” IEEE Transactions on Wireless Communications, vol. 5, no. 5, pp. 1095- 1102, May 2006 (SCI, EI)

• Ray-Guang Cheng*, Cun-Yi Wang, Li-Hung Liao, and Jen-Shun Yang, “Ripple: A wireless token-passing protocol for multi-hop wireless mesh networks,” IEEE Communications Letters, vol. 10, no. 2, pp. 123-125, Feb. 2006 (SCI, EI)

• Cun-Yi Wang, Ray-Guang Cheng*, and Jen-Shun Yang, “Ripple Protocol—A New Media Access Protocol in Wi-Fi Mesh Networks,” CCL Technical Journal, vol. 114, Dec. 2005. (in Chinese, Best Paper Award of the 7th CCL Technical Journal)

• Ray-Guang Cheng* and Shiao-Li Tsao, “3GPP-WLAN interworking using a novel access control mechanism,” Journal of Internet Technology (Special Issue on Heterogeneous IP Networks), pp. 261-272, July 2005 (EI)

• Jen-Shun Yang, Chien-Chao Tseng*, and Ray-Guang Cheng, “Dynamic scheduling framework on a RLC/MAC layer for general packet radio service,” IEEE Transactions on Wireless Communications, vol. 2, no. 5, pp. 1008~1016, Sep. 2003. (SCI, EI)

• Fang-Ching Ren, Chung-Ju Chang*, and Ray-Guang Cheng, “QoS-guaranteed fuzzy transmission controller for dynamic TDMA protocol in multimedia communication systems,” IEE Proceedings – Communications, vol. 149, no. 6, pp. 292~298, Dec. 2002. (SCI, EI)

• Chung-Ju Chang*, Li-Fong Lin, Song-Yaor Lin, and Ray-Guang Cheng, “Power-spectrum-based neural-net connection admission control for multimedia networks,” IEE Proceedings – Communications, vol. 149, no. 2, pp. 70~76, April 2002. (SCI, EI)

• Ray-Guang Cheng, Chung-Ju Chang*, and Li-Fong Lin, “A QoS-provision neural fuzzy connection admission controller for multimedia high-speed networks,” IEEE/ACM Trans. Networking, vol. 7, no. 1, pp. 111-121, Feb. 1999. (SCI, EI)

• Ray-Guang Cheng*, “GPRS: The packet data service for GSM networks,” CCL Technical Journal, vol. 76, Jan. 1999. (in Chinese)

• Chung-Ju Chang*, Chih-Hen Lin, Dah-Sheng Guan, and Ray-Guang Cheng, “Design of a power-spectrum-based ATM connection admission controller for multimedia communications,” IEEE Trans. Industrial Electronics, vol. 45, no. 1, pp. 52~59, Feb. 1998. (SCI, EI)

• Ray-Guang Cheng and Chung-Ju Chang*, “Neural-network connection-admission control for ATM networks,” IEE Proceeding – Communications, vol. 144, no. 2, pp. 93~98, April 1997. (SCI, EI)

• Ray-Guang Cheng and Chung-Ju Chang*, “Design of a fuzzy traffic controller for ATM networks,” IEEE/ACM Trans. Networking, vol. 4, no. 3, pp. 460~469, June 1996. (SCI, EI)

• Fransiscus Asisi Bimo, Ferlinda Feliana, Shu-Hua Liao, Chih-Wei Lin, David F. Kinsey, James Li, Rittwik Jana, Richard Wright, Ray-Guang Cheng, “OSC Community Lab: The integration test bed for O-RAN Software Community,” 2022 IEEE Future Networks World Forum (FNWF), Montreal Canada, Oct. 2022.

• Shu-Hua Liao, Chih-Wei Lin, Fransiscus Asisi Bimo, and Ray-Guang Cheng*, “Development of C-Plane DoS attacker for O-RAN FHI,” MobiCom’22, Sydney, Australia, Oct 2022.

• Chieh-Chun Chen, Ray-Guang Cheng*, Chung-Yin Ho, Matthieu Kanj, Bruno Mongazon-Cazavet, Navid Nikaein, “Prototyping of open source NB-IoT network,” 2020 IEEE Global Communications Conference (GLOBECOM), Selected Areas in Communications: Access Networks and Systems, Taipei, Taiwan, Dec. 2020.

• Chung-Yin Ho, Ray-Guang Cheng*, Jing-Wei Chen, and Chang-Sheng Liu, “Open NB-IoT network in a PC,” IEEE GLOBECOM 2019 Workshop on Emerging Technologies of Open Networks for 5G/B5G, Hawii, USA, Dec. 2019.

• Irene Karijadi, Shou-Yan Chou*, Anindhita Dewabharata, and Ray-Guang Cheng, “Electricity load prediction using Fuzzy c-means clustering EMD based support vector regression for university building,” 2019 International Conference on Fuzzy Theory and Its Applications (iFUZZY 2019), New Taipei City, Taiwan, Nov. 7-10, 2019.

• Yonathan Yonathan, Shuo-Yan Chou*, Ray-Guang Cheng, and Anindhita Dewabharata, “A novel design of intelligent energy-efficient drinking water dispensing systems,” 26th ISTE International Conference on Transdisciplinary Engineering (TE2019), Kashiwa, Japan, July. 29 - August. 1, 2019.

• Ruki Harwahyu*, Yu-Yi Chu, David Sijabat, Ray-Guang Cheng and Riri Fitri Sari, "Conserving RACH energy usage with flexible preamble allocation for IoT coexisting with H2H services," 2019 16th International Conference on Quality in Research (QIR): International Symposium on Electrical and Computer Engineering, Padang, Indonesia, July 22-24, 2019.

• Ruki Harwahyu*, Ray-Guang Cheng, and Riri Fitri Sari, “Performance of distributed coordination function for serving IoT applications,” Indonesia Japan Joint Scientific Symposium (IJJSS), 2019.

• Wen-Zhi Cheng, Ray-Guang Cheng*, Shou-Yan Chou, “Power-saving for IoT-enabled water dispenser system,” in proc. 42nd International Conference on Telecommunications and Signal Processing (TSP), Budapest, July 2019.

• Chin-Ya Huang∗, Ching-Wei Lin, Ray-Guang Cheng, Shanchieh Jay Yang, and Shiann-Tsong Sheu, “Experimental evaluation of jamming threat in LoRaWAN,” IEEE VTC-Spring, Kuala Lumpur, Malaysia, April 2019.

• Chin-Ya Huang∗, Chung-Ying Ho, Navid Nikaein, and Ray-Guang Cheng, “Design and prototype a virtualized 5G infrastructure supporting network slicing,” IEEE DSP Conference, ShangHai, China, Nov. 2018.

• Ruki Harwahyu*, Chu-Chun Huang, Ray-Guang Cheng, Riri Fitri Sari, “Impact of backoff algorithm on IoT over multichannel slotted Aloha system,” International Conference on SMART CITY Innovation 2018, October 2018, Bandung, Indonesia.

• Ray-Guang Cheng*, Raymond Knopp, Chung-Yin Ho, Kai-Hsiang Hsu, Tian-Jen Liu, Wei-Tai Chen, Bing-Zhi Hsieh, Matthieu Kanj, Francois Taburet, and Navid Nikaein, “Demo Abstract - Design and Implementation of an Open Source NB-IoT eNB,” IEEE INFOCOM 2018, April 2018.

• Ruki Harwahyu*, Che-Yuan Chiang, and Ray-Guang Cheng, “Analysis of backoff algorithms for random access channels in OFDMA systems,” in The 3rd International Conference on Intelligent Green Building and Smart Grid (IGBSG 2018), Best Paper Award, YiLan, Taiwan, April 2018.

• Bing-Zhi Hsieh, Yu-Hsiang Chao, Ray-Guang Cheng*, and Navid Nikaein, “Design of a UE-specific uplink scheduler for narrowband Internet-of-Things (NB-IoT) systems,” in The 3rd International Conference on Intelligent Green Building and Smart Grid (IGBSG 2018), YiLan, Taiwan, April 2018.

• Ruki Harwahyu, Ray-Guang Cheng*, Chia-Hung Wei, “Performance analysis of the random access channel in NB-IoT,” in proc. IEEE 86th Vehicular Technology Conference, Sep. 2017.

• David Sijabat, Ruki Harwahyu, Ray-Guang Cheng*, “Energy-efficiency of RACH-based small data transmission scheme in LTE networks,” in proc. 40th International Conference on Telecommunications and Signal Processing (TSP), July 2017.

• Chu-Chun Huang, Ray-Guang Cheng*, and Ruki Harwahyu, "Impact of backoff algorithm on Small Data Transmission Scheme in a Generalized Multichannel Slotted Aloha System," in proc. International Symposium on Electronics and Smart Devices, Nov. 2016.

• Yu-Wei Lin, Ray-Guang Cheng*, Ruki Harwahyu, "Study of WiFi and LTE coexistence in the unlicensed Spectrum," in proc. International Conference on Electrical Engineering and Computer Science (ICEECS), Oct. 2016.

• Chu-Chun Huang, Ray-Guang Cheng*, and Ruki Harwahyu, “Performance evaluating of small data transmissions in generalized multichannel slotted Aloha systems,” The 8th International High Speed Intelligent Communication Forum and 2016 International Conference on Communication Problem-Solving (ICCP), New Taipei City, Taiwan, Sep. 2016.

• Shiann-Tsong Sheu*, Ray-Guang Cheng, Jie-Yu Wang, Kai-Hua Kuo, and Ruki Harwahyu, “Performance analysis of the window-based HARQ time bundling scheme,” The 2nd International Conference on Intelligent Green Building and Smart Grid (IGBSG 2016), Prague, Czech Republic, June 27-29, 2016.

• Yu-Yi Chu, Ruki Harwahyu, Ray-Guang Cheng*, and Chia-Hung Wei, “Study of generalized resource allocation scheme for multichannel slotted ALOHA systems,” IEEE PIMRC 2015, Hong Kong, China, Aug. 30 - Sep. 2, 2015

• Tse-Wei Lin, Tze-Wen Wang, Yu-Sheng Huang, and Ray-Guang Cheng*,“基於四軸飛行器之受困者定位,” The 20th Mobile Computing Workshop, Aug. 25-26, 2015.

• Heng-Hao Pu, Chung-Ju Chang*, and Ray-Guang Cheng, “The SA-based group handoff scheme for heterogeneous wireless networks in M2M communications,” IWCMC 2015 M2M and IoT Workshop, Dubrovnik, Croatia, August 24-27, 2015.

• Ping-Chen Lin, Ray-Guang Cheng*, Xian Wang, and Putu Ayu Rhamani Suryadhi, “PFCS: Pre-buffering- aware flow control scheme for LTE-Advanced relay networks,” 11th EAI International Conference on Heterogeneous Networking for Quality, Reliability, Security and Robustness (QSHINE 2016), Taipei, Taiwan, Aug. 19-20, 2015.

• Shin-Ming Cheng*, Wei-Ru Huang, Ray-Guang Cheng, and Chai-Hien Gan, “Experimental emergency communication systems using USRP and GNU-radio platform,” 11th EAI International Conference on Heterogeneous Networking for Quality, Reliability, Security and Robustness, Taipei, Taiwan, Aug. 19-20, 2015.

• Jenhui Chen*, Yun-Ting Lin, and Ray-Guang Cheng, “A delayed random access speed-up scheme for group paging in machine-type communications,” IEEE ICC 2015, June 2015.

• Jung-Shiuan Hunag, Ruki Harwahyu, Ray-Guang Cheng*, “Study of low cost mobile phone tracking system,” The 4th International Symposium on Next-Generation Electronics (IEEE ISNE 2015), May 4-6, 2015.

• Bo-Li Chang, Ray-Guang Cheng*, Yu-Feng Chou, Yu-Yi Chu, and Chia-Hung Wei, “Service architecture selection for multimedia broadcast/multicast services,” The 2nd International Conference on Multimedia and Human-Computer Interaction (MHCI’14), Prague, Czech Republic, Aug. 2014.

• Shiao-Li Tsao*, Chen-Wei Wang, Yun-Ciou Lin, and Ray-Guang Cheng, “A dynamic load-balancing scheme for heterogeneous wireless networks,” IEEE Wireless Communications and Networking Conference (WCNC), Istanbul, Turkey, April 2014.

• Ray-Guang Cheng*, Po-Yao Tsai, Ping-Chen Lin, Chia-Liang Lian, Tse-Han Liu, Hsien-Cheng Chou, Shiao-Li Tsao, and Shanchieh Yang, “Design and implementation of a Skype protocol analyzer,” First IEEE Conference on Communications and Network Security (IEEE CNS), Washington, D. C., USA, Oct. 2013.

• Ruki Harwahyu, Ray-Guang Cheng*, and Riri Fitri Sari, “Consecutive group paging for LTE networks supporting machine-type communications services,” The 24th Annual IEEE International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC), London, UK, Sep. 2013.

• Ping-Chen Lin and Ray-Guang Cheng*, “Dynamic two-threshold flow control scheme for 3GPP LTE-A relay networks,” The 24th Annual IEEE International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC), London, UK, Sep. 2013.

• Fang Lo, Yu-Feng Chou, Ray-Guang Cheng*, Marek Kalika, Radek Holy, and Jana Kalikova “Generalized radio resource management for overlapping MBS zones,” Knowledge in Telecommunication Technologies and Optics (KTTO) 2013, Sep. 2013.

• Ray-Guang Cheng*, Chia-Hung Wei, and Shiao-Li Tsao, “Iterative contending-user estimation method for OFDMA wireless networks with bursty arrivals,” The Eighteenth IEEE Symposium on Computers and Communications (ISCC), Split, Croatia, July 2013.

• Nien-Sheng Chen, Yu-Feng Chou, Ray-Guang Cheng*, and Shiao-Li Tsao, “Multiple contents offloading through opportunistic communications,” The 12th International Conference on Telecommunications (ConTEL), pp. 65-69, Zagreb, Croatia, July 2013. 

• Chia-Hung Wei, Ray-Guang Cheng*, and Firas M. Al-Taee, “Dynamic radio resource allocation for group paging supporting smart meter communications,” IEEE SmartGridComm 2012 Workshop - Cognitive and Machine-to-Machine Communications and Networking for Smart Grid, pp. 659-663, Tainan, Taiwan, Nov. 5-8, 2012.

• Yu-Feng Chou, Ray-Guang Cheng*, and Hsin-Heng Huang, “Performance evaluation of referral selection algorithms in human centric communication networks,” The 15th International Symposium on Wireless Personal Multimedia Communications Symposium (WPMC'12), pp. 638-642, Taipei, Taiwan, Sep. 24-27, 2012.

• Ping-Chen Lin, Batzaya Ganbat, and Ray-Guang Cheng*, “Radio measurement for WiMAX at 2.6 GHz under campus environment,” 2012 IEEE VTS Asia Pacific Wireless Communications Symposium (APWCS), Kyoto, Japan, Aug. 23-24, 2012.

• Chia-Liang Lian, Po-Yao Tsai, Ping-Chen Lin, and Ray-Guang Cheng*, “Wireshark之Skype通訊協定分析儀,” 2012年第十五屆資訊管理學術暨警政資訊實務研討會, May 2012.

• Ray-Guang Cheng*, Chia-Hung Wei, Shiao-Li Tsao, and Fang-Ching Ren, “RACH collision probability for machine-type communications,” IEEE VTC-Spring 2012, May 2012.

• Yu-Feng Chou, Ray-Guang Cheng*, and Fang-Ching Ren, “Code detection in a CDMA-based common channel,” IEEE VTC-Spring 2012, May 2012.

• Xian Wang*, Shi-Jinn Horng, Ray-Guang Cheng, and Pingzhi Fan, “Call dropping performance of the relay station (RS)-first channel access scheme in LTE-Advanced relay networks,” 2011 Australasian Telecommunication Networks and Applications Conference, Nov. 2011.

• Xian Wang*, Shi-Jinn Horng, Ray-Guang Cheng, and Pingzhi Fan, “Call dropping performance analysis of the eNB-first channel access policy in LTE-Advanced relay networks,” IEEE 7th International Conference on Wireless and Mobile Computing, Networking and Communications (WiMob'2011), Oct. 2011.

• Yu-Feng Chou, Ray-Guang Cheng*, and Pei-Yuan Ku, “Advertising in human centric communication networks,” Human-Centric Communications and Networking Workshop, in conjunction with The Seventh International Wireless Communications and Mobile Computing Conference (IEEE IWCMC-2011), July 2011.

• Ray-Guang Cheng*, Yao-Yuan Liu, Wen-Yen Cheng, and Da-Ruei Liu, “Common feedback channel for multicast and broadcast services,” The Seventh International Wireless Communications and Mobile Computing Conference (IEEE IWCMC-2011), July 2011.

• Eugene Su, Ray-Guang Cheng*, Jim Hsieh, Chang-Long Chu, and Chih-Wei Su, “Ns-2 based emulator for multicast services,” 2010 IEEE International Conference on Computer Communications and Networks (ICCCN), Aug. 2010.

• Che-Sheng Lin, Chang-Lueng Chu, Chih-Wei Su, and Ray-Guang Cheng*, “Dynamic rate selection (DRS) scheme for UWB system supporting video multicast services,” Intelligent Buildings and Smart Homes Conference 2009, Nov. 2009.

• Ray-Guang Cheng*, Kuo-Jui Huang, and Jen-Shun Yang, “Radio resource allocation for overlapping MBS zone,” IEEE Mobile WiMAX Symposium, July 2009. (Student Travel Grant Award)

• Quang Vu Nguyen and Ray-Guang Cheng*, “Enhanced Ripple (E-Ripple) protocol for multihop wireless chain-based networks,” the 10th IEEE International Symposium on a World of Wireless, Mobile and Multimedia Networks (WoWMoM), June 2009 (Acceptance ratio 24% ).

• Ping-Chen Lin, Ray-Guang Cheng*, and Li-Hung Liao, “Performance analysis of multi-hop wireless backhaul networks supporting multiple-class traffic,” the 5th IEEE VTS Asia Pacific Wireless Communications Symposium, Aug. 2008.

• Ray-Guang Cheng*, Jiann-Jone Chen, Jian-Hua Lan, and Kuo-Jui Huang, “Measurement and analysis of Skype video traffic,” the 5th IEEE VTS Asia Pacific Wireless Communications Symposium, Aug. 2008.

• Ray-Guang Cheng* and Wei-Jun Wang, “Rate-adaptive layered multicast (RALM) for WiMAX video services,” 2007 IFIP International Conference on Embedded and Ubiquitous Computing (EUC-07), Dec. 2007. (also in Lecture Notes in Computer Science (LNCS), Springer-Verlag , vol. 4808, pp.379-388, 2007)

• Kwang-Cheng Chen, Ray-Guang Cheng, Da-Shan Shiu, Ramjee Prasad, Shihi Chen, “Self-organizing terminal architecture for consumer networks,” 2007 Taiwan-Japan Joint Conference on Communication Technology, Nov. 2007.

• Ray-Guang Cheng and Ruei-I Chang, “Improved wireless token ring protocol (IWTRP) for multi-hop wireless metropolitan area networks,” IEEE VTC2007-Spring, April 2007.

• Li-Hung Liao, Ray-Guang Cheng, and Kuo-Lun Hua, “Location-independent scheduling mechanism for multi-hop wireless backhaul networks,” IEEE VTC2007-Spring, April 2007.

• Ray-Guang Cheng and Jia-Yang Hung, “Power-strength-based selective-forwarding (PSF) method for multihop cellular networks, IEEE Wireless Communications and Networking Conference (WCNC), March 2007

• Li-Hung Liao, Ray-Guang Cheng, and Kuo-Lun Hua (O), “Analysis of the virtual-timestamp-based scheduling for multi-hop wireless backhaul networks,” IEEE Wireless Communications and Networking Conference (WCNC), March 2007.

• Kuo-Lun Hua and Ray-Guang Cheng, “Performance evaluation of 802.11e over multihop WiFi mesh networks,” The 2nd Workshop on Wireless, Ad Hoc, and Sensor Networks, August 2006.

• Ray-Guang Cheng*, Jia-Yang Hung, and Yao-Yuan Liu, “Power-efficient route discovery (PERD) for ODMA systems,” 2006 IFIP International Conference on Embedded and Ubiquitous Computing (EUC-06), August 2006. (also in Lecture Notes in Computer Science (LNCS), Springer-Verlag, vol. 4096, pp. 824-833, 2006.

• Ray-Guang Cheng*, Cun-Yi Wang, and Li-Hung Liao, “Ripple: A distributed medium access protocol for multi-hop wireless mesh networks,” IEEE VTC2006-Spring, May 2006.

• Jyun-Yuan Cheng, Shanq-Jang Ruan*, Ray-Guang Cheng, and Teng-Tai Hsu, “PADCP: Power-aware dynamic clustering protocol for wireless sensor network,” The third IEEE and IFIP International Conference on wireless and Optical Communications Networks (WOCN), April 2006.

• Ray-Guang Cheng*, Shin-Ming Cheng, and Phone Lin, “Power-efficient routing (PER) mechanism for ODMA systems,” IEEE International Conference on Wireless Networks, Communications, and Mobile Computing (WirelessCom), June 2005.

• Hao-Tang Shih, Chung-Ju Chang*, Ray-Guang Cheng, and Yih-Shen Chen, “A novel downlink scheduling algorithm for DSRC networks supporting ITS applications,” The 5th Internal Conference on ITS Telecommunications, June 2005.

• Jen-Shun Yang, Chien-Chao Tseng*, and Ray-Guang Cheng, “A signal-to-interference ratio based downlink scheduling scheme for WCDMA mobile communication system,” IEEE International Conference on Advanced Information Networking and Applications (AINA), vol. 1, pp. 570-575, March 2005.

• Li-Fong Lin, Ning-You Yan, Chung-Ju Chang*, and Ray-Guang Cheng, “An enhanced traffic marker for DiffServ networks,” pp. 432-442, ICOIN 2005, Jan. 2005.(Best Paper Award, also in Lecture Notes in Computer Science (LNCS), Springer-Verlag, vol. 3391, pp. 432-442, 2005.

• Ray-Guang Cheng* and Shiao-Li Tsao, “3G-based access control for 3GPP-WLAN interworking,” IEEE VTC2004-Spring, pp. 2967-2971, May 2004.

• Chih-Yung Shih, Yih-Shen Chen, Ray-Guang Cheng, and Chung-Ju Chang*, “An power-efficient MAC protocol for integrated voice and data services over 802.11e HCF,” IEEE VTC2004-Spring, pp. 2032 - 2036, May 2004.

• Chih-Yung Shih, Ray-Guang Cheng*, and Chung-Ju Chang, “Achieving weighted fairness for wireless multimedia services,” IEEE VTC2003-Fall, pp. 2381 - 2385, Oct. 2003.

• Yu-Fu Fan, Sherman Wang, Chi-An Su, and Ray-Guang Cheng*, “3G Node B developing experience,” 8th Mobile Computing Workshop, March 2002.

• Jen-Shun Yang, Chien-Chao Tseng*, and Ray-Guang Cheng, “Dynamic scheduling framework on RLC/MAC layer for general packet radio service,” IEEE International Conference on Distributed Computing System, pp. 441~447, April 2001.

• Ray-Guang Cheng* and Phone Lin, “OVSF code channel assignment for IMT-2000,” IEEE VTC2000-Spring, vol.3, pp. 2188~2192, May 2000.

• Ming-Hung Lin*, Ray-Guang Cheng, and Chiung-Shien Wu, “Supporting broadband, mobile, high-speed multimedia services based on TDMA MAC protocol,” IEEE International Conference on Systems, Man, and Cybernetics, vol. 1, pp. 992~997, Oct. 1999.

• Fang-Ching Ren, Chung-Ju Chang*, and Ray-Guang Cheng, “An intelligent transmission controller for TDMA/PRMA wireless multimedia communication systems,” IEEE VTC'99-Fall, pp. 406-410, Sep. 1999.

• Li-Fung Chang*, Vijay Varma, and Ray-Guang Cheng, “Architecture alternatives for PCS-to-internet protocol interworking,” IEEE Wireless Communications and Networking Conference (WCNC), no. 1, pp. 766-770, Sep. 1999.

• Chiung-Shien Wu* and Ray-Guang Cheng, “Performance of GPRS MAC protocol in dynamic TDD mode,” IEEE VTC'99-Spring, vol. 1, pp. 332~336, July 1999.

• Ray-Guang Cheng*, Chiung-Shien Wu, Ming-Hung Lin, Mei-Chian Liu, Jiann-Hung Lin, Haung-Ru Lan, and Chih-Chin Liu, “BMW overall architecture and prototyping,” IEEE VTC'99-Spring, vol. 2, pp. 1350~1354, July 1999.

• Ray-Guang Cheng*, “A code management mechanism for WCDMA mobile communication networks,” International Workshop on Mobile Communications, pp. 348~353, June 1999.

• Ray-Guang Cheng, Fang-Ching Ren, and Chung-Ju Chang*, “Single reservation v.s multiple reservation schemes for multiple channel slotted ALOHA system,” ICOIN-13, pp. 6D-3.1~6D-3.5, Cheju, Jan. 1999.

• Li-Fong Lin, Zohn-Shiun Eul, and Ray-Guang Cheng, and Chung-Ju Chang*, “Implementation of an admission controller for high-speed multimedia networks,” IEEE International Conference on Consumer Electronics (ICCE), pp. 254~255, May 1998.

• Ray-Guang Cheng* and Chiung-Shien Wu, “General packet radio service - A packet switched technology for data communication over GSM network,” Fourth International Symposium on Real-Time and Media System, pp. 153~160, 1998.

• Chung-Ju Chang*, Chih-Feng Juan, Yung-Chih Lin, and Ray-Guang Cheng, “Design of a fuzzy usage parameter controller (FUPC) for ATM networks,” IEEE ICC'97, vol. 1, pp. 215~219, June 1997.

• Chung-Ju Chang*, Song-Yoar Lin, Yow-Ren Shiue, and Ray-Guang Cheng, “A power-spectrum based neural fuzzy connection admission mechanism for ATM networks,” IEEE ICC'97, vol. 3, pp. 1709~1713, June 1997.

• Chung-Ju Chang*, Song-Yaor Lin, Ray-Guang Cheng, and Yow-Ren Shiue, “PSD-based neural-net connection admission control,” IEEE INFOCOM'97, vol. 3, pp. 955~962, April 1997.

• Chung-Ju Chang*, Hung-Ming Chi, and Ray-Guang Cheng, “A power-spectrum based connection admission control for ATM networks,” IEEE ICC'96, vol. 2, pp. 637~641, June 1996.

• Ray-Guang Cheng and Chung-Ju Chang*, “A neural-net based fuzzy admission controller for an ATM network,” IEEE INFOCOM'96, vol. 2, pp. 777~784, March 1996.

• Chung-Ju Chang* and Ray-Guang Cheng, “Traffic control in an ATM network using fuzzy set theory,” IEEE INFOCOM'94, vol. 3, pp. 1200~1207, June 1994.

• Chung-Ju Chang* and Ray-Guang Cheng, “Congestion control in ATM networks using fuzzy set theory,” Proc. of International Symposium on Communications, vol. 1, pp. 2-19~2-26, Dec. 1993.

U.S. Patents

• [P1] Ray-Guang Cheng and Yu-Feng Chou, Methods and systems for multi-user detection in CDMA-based common channels and computer program products thereof, US Patent No.: 8,472,411, 2011/3~2031/3

  • Patent Holder: ITRI

  • Filing Date: 2011/3/7, Application No.: 13/042,040, Grant Date: 2013/7/25

• [P2] Fang-Ching Ren, Ray-Guang Cheng, Chie-Ming Chou, and Kun-Ying Hsieh, Systems and methods for channel selection management in a wireless communication network, US Patent No.: 8,433,319 B2, 2008/1~2028/1

  • Patent Holder: ITRI

  • Filing Date: 2008/1/7, Application No.: 11/970,511, Grant Date: 2013/4/30

• [P3] Ray-Guang Cheng, Kuo-Jui Huang, and Jen-Shun Yang, Communication systems and methods with resource management for overlapping multicast and broadcast service zones, US Patent No.: 8,385,247 B2, 2009/11~2029/11

  • Patent Holders: NTUST, ITRI

  • Filing Date: 2009/11/20, Application No.: 12/622,912, Grant Date: 2013/2/26

• [P4] Ray-Guang Cheng, Method and apparatus for receiving feedback corresponding to multicast broadcast service, US Patent No.: 8,111,710B2, 2011/7~2026/7

  • Patent Holder: NTUST

  • Filing Date: 2009/1/23, Application No.: 12/358,242, Grant Date: 2012/2/7

• [P5] Ray-Guang Cheng and Ping-Chen Lin, Call admission controller and method thereof and multi-hop wireless backhaul network system using the same, US Patent No.: 8,054,745 B2, 2011/7~2026

  • Patent Holder: NTUST

  • Filing Date: 2009/4/7, Application No.: 12/419,301, Grant Date: 2011/11/8

• [P6] Ray-Guang Cheng and Ruei-I Chang, Data transmitting method with multiple token mechanism in wireless token ring protocol, US Patent No.: 7,975,074, 2011/7~2026

  • Patent Holder: NTUST

  • Filing Date: 2008/1/7, Application No.: 11/969,921, Grant Date: 2011/7/5

• [P7] Ray-Guang Cheng, Cun-Yi Wang, and Jen-Shun Yang, Distributed medium access protocol for wireless mesh networks, US Patent No.: 7,822,009, 2010/10~2026

  • Patent Holder: ITRI

  • Filing Date: 2006/5/5, Application No.: 11/381,809, Grant Date: 2010/10/26

• [P8] Chih-Yung Shih, Ray-Guang Cheng, Chung-Ju Chang, and Yih-Shen Chen, Method for power efficient transmission supporting integrated services over wireless local area network, US Patent No.: 7,653,041, 2010/1~2025

  • Patent Holder: National Chiao Tung University

  • Filing Date: 2005/5/12, Application No.: 11/128,794, Grant Date: 2010/1/26

• [P9] Ray-Guang Cheng, Method and system for registering communication systems to wireless terminals, US Patent No.: 7,489,919 B2, 2009/2~2023/9

  • Patent Holder: Qisda

  • Filing Date: 2004/9/8, Application No.: 10/935,987, Grant Date: 2009/2/10

• [P10] Phone Lin, Yi-Bing Lin, Guan-Hua Tu, and Ray-Guang Cheng, Overflow control method for frame synchronization of base stations in wireless communication network system, US Patent No.: 7,359,356 B2, 2008/4~2022/8

  • Patent Holder: BenQ

  • Filing Date: 2003/8/26, Application No.: 10/648,097, Grant Date: 2008/4/15

• [P11] Jen-Shun Yang, Ray-Guang Cheng, and Chien-Chao Tseng, System and method for scheduling protocol data units, US Patent No.: 7,289,468 B2, 2007/10~2023/3

  • Patent Holder: BenQ

  • Filing Date: 2003/5/14, Application No.: 10/388,891, Grant Date: 2007/10/30

• [P12] Jen-Shun Yang, Ray-Guang Cheng, and Chien-Chao Tseng, Dynamic scheduling for packet data network, US Patent No.: 6,996,061 B2, 2006/2~2026/1

  • Patent Holder: ITRI

  • Filing Date: 2001/2/23, Application No.: 9/790,490, Grant Date: 2006/2/7

• [P13] Ray-Guang Cheng, Phone Lin, and Yi-Bing Lin, Enhanced honeycomb communication system, US Patent No.: 6,954,612 B2, 2005/10~2025/11

  • Patent Holder: BenQ

  • Filing Date: 2002/6/7, Application No.: 10/163,413, Grant Date: 2005/10/11

• [P14] Ray-Guang Cheng, Code management system and method for CDMA communication networks, US Patent No.: 6,526,065 B1, 2003/2~2019/1. (Note: This patent has been included in 3GPP TR. 25.922, Sec. 8.1, Code Allocation Strategies for FDD Mode)

  • Patent Holder: Acer

  • Filing Date: 1999/1/21, Application No.: 09/234,871, Grant Date: 2003/2/25

• [P15] C. J. Chang, H. M Chi, Ray-Guang Cheng, C. P. Lin, and Y. C. Wang, Power-spectrum-based connection admission control for ATM networks, US Patent No.: 6,075,770, 2000/6~2016/11

  • Patent Holder: ITRI

  • Filing Date: 1996/11/20, Application No.: 08/749,371, Grant Date: 2000/6/13

• [P16] C. J. Chang, Ray-Guang Cheng, K. R. Lu, and H. Y. Lee, Neural fuzzy connection admission controller and method in a node of an asynchronous transfer mode (ATM) communication network, US Patent No.: 6,067,287, 2000/5~2017/9

  • Patent Holder: Accton Technology

  • Filing Date: 1997/9/15, Application No.: 08/929,718, Grant Date: 2000/5/23

• [P17] C. J. Chang, Ray-Guang Cheng, C. P. Lin, M. C. Hsieh, and Y. C. Wang, Traffic control mechanism in ATM communications network, US Patent No.: 5,812,526, 1998/9~2015/12

  • Patent Holder: ITRI

  • Filing Date: 1995/12/21, Application No.: 08/576,808, Grant Date: 1998/9/22

• [P18] C. J. Chang, L. C. Huang, Ray-Guang Cheng, and J. H. Yu, Method and apparatus used in hashing algorithm reducing conflict probability, U.S. Patent No.: 5,633,858, 1997/5~2012/2

  • Patent Holder: Accton Technology

  • Filing Date: 1996/2/29, Application No.: 08/608,704, Grant Date: 1997/5/27

Taiwan (R.O.C.) Invention Patents

• [P19] Ray-Guang Cheng, Wei-Ju Huang, Hsin-Ming Cheng, Tse-Han Liu, Method and system for detecting and locating trapped persons, R.O.C. Invention Patent No. I533727

  • Patent Holder: NTUST

  • Filing Date: 2014/05/29, Application No.: 103118780, Grant Date: 2016/5/11

• [P20] San-Liang Lee, Ray-Guang Cheng, Radio-over-fiber uplink system and central office unit, R.O.C. Invention Patent No. I527389

  • Patent Holder: NTUST

  • Filing Date: 2014/06/06, Application No.: 103119780, Grant Date: 2016/3/21

• [P21] Ray-Guang Cheng, Shih-Jui Tai, Chia-Hung Wei, Dynamic resource allocation method, R.O.C. Invention Patent No. I488513 (2013/5/3~2033/5/2)

  • Patent Holder: NTUST

  • Filing Date: 2013/5/3, Application No.: 102115932, Grant Date: 2015/6/11

• [P22] Ray-Guang Cheng, Po-Li Chang, Transmission mode selection method and transmission system, R.O.C. Invention Patent No. I439151 (2014/5/21~2031/2/16)

  • Patent Holder: NTUST

  • Filing Date: 2011/2/17, Application No.: 100105270, Grant Date: 2014/5/21

• [P23] Ray-Guang Cheng, Method and apparatus for receiving feedback corresponding to multicast broadcast services, R.O.C. Invention Patent No. I410070 (2013/3/12~2029/3/11)

  • Patent Holder: NTUST

  • Filing Date: 2009/3/12, Application No.: 098108047, Grant Date: 2013/9/21

• [P24] Ray-Guang Cheng, Yu-Feng Chou, Code-division multiplexing based multi-user detection method, system, and computer program product thereof, R.O.C. Invention Patent No. I404346 (2013/2/21~2029/11/11)

  • Patent Holder: ITRI

  • Filing Date: 2010/11/12, Application No.: 099138933, Grant Date: 2013/8/1

• [P25] Ray-Guang Cheng, Kuo-Jui Huang, Jen-Shun Yang, Communication systems and methods with resource management for overlapping multicast and broadcast service zones, R.O.C. Invention Patent No. I387376 (2013/2/21~2029/11/25)

  • Patent Holders: NTUST, ITRI

  • Filing Date: 2009/11/20, Application No.: 98140364, Grant Date: 2013/2/21

• [P26] Ray-Guang Cheng, Ping-Chen Lin, Admission controller, method thereof, and multi-hop wireless backbone network system using the same, R.O.C. Invention Patent No. I385976 (2009/1/19~2029/1/18)

  • Patent Holder: NTUST

  • Filing Date: 2009/1/19, Application No.: 098101915, Grant Date: 2013/2/11

• [P27] Fang-Ching Ren, Ray-Guang Cheng, Chien-Ming Chou, Kun-Ying Hsieh, System and method for channel selection management in a wireless communication network, R.O.C. Invention Patent No. I357770 (2012/2/1~2028/1/10)

  • Patent Holder: ITRI

  • Filing Date: 2008/1/11, Application No.: 097101240, Grant Date: 2012/2/1

• [P28] Ray-Guang Cheng, Jui-Yi Chang, Data transmission method with a multi-token mechanism in a wireless token ring protocol, R.O.C. Invention Patent No. I355826 (2012/1/1~2027/8/19)

  • Patent Holder: NTUST

  • Filing Date: 2007/8/20, Application No.: 096130677, Grant Date: 2012/1/1

• [P29] Ray-Guang Cheng Li-Hung Liao, Packet transmission method and wireless network using the same, R.O.C. Invention Patent No. I349463 (2009/5~2026/5)

  • Patent Holder: NTUST

  • Filing Date: 2007/6/29, Application No.: 096123756, Grant Date: 2011/9/21

• [P30] Ray-Guang Cheng, Tsun-Yi Wang, Jen-Shun Yang, Method and system for data communication in a wireless mesh network, R.O.C. Invention Patent No. I309522 (2009/5~2026/5)

  • Patent Holder: ITRI

  • Filing Date: 2006/5/8, Application No.: 095116256, Grant Date: 2009/5/1

• [P31] Ray-Guang Cheng, Phone Lin, Yi-Ping Lin, Relay signal transmission method for mobile communication systems, R.O.C. Invention Patent No. I289999 (2007/11~2021/6)

  • Patent Holder: BenQ

  • Filing Date: 2001/6/8, Application No.: 090114011, Grant Date: 2007/11/11

• [P32] Ray-Guang Cheng, Method for attendance taking and testing in distance learning, R.O.C. Invention Patent No. I287766 (2007/10~2026/2)

  • Patent Holder: NTUST

  • Filing Date: 2006/7/26, Application No.: 095127241, Grant Date: 2007/10/1

• [P33] Ray-Guang Cheng, Chia-Yang Hung, Power-saving routing method for multi-hop wireless networks, R.O.C. Invention Patent No. I274490 (2007/2~2025/11)

  • Patent Holder: NTUST

  • Filing Date: 2005/11/18, Application No.: 094140665, Grant Date: 2007/2/21

• [P34] Ray-Guang Cheng, Chien-Chou Hou, Method for automatically collecting information and information collection system, R.O.C. Invention Patent No. I261184 (2006/9~2023/12)

  • Patent Holder: BenQ

  • Filing Date: 2003/12/2, Application No.: 092133776, Grant Date: 2006/9/1

• [P35] Jen-Shun Yang, Ray-Guang Cheng, Chien-Chao Tseng, System and method for scheduling and distributing protocol data units, R.O.C. Invention Patent No. I221391 (2004/9~2022/3)

  • Patent Holder: Teltel

  • Filing Date: 2002/3/27, Application No.: 091106060, Grant Date: 2004/9/21

• [P36] Ray-Guang Cheng, Method for a wireless terminal to register with a communication system and the communication system thereof, R.O.C. Invention Patent No. I220833 (2004/9~2023/9)

  • Patent Holder: BenQ

  • Filing Date: 2003/9/12, Application No.: 092125163, Grant Date: 2004/9/1

• [P37] Phone Lin, Yi-Ping Lin, Kuan-Hua Tu, Ray-Guang Cheng, Overflow control method for ensuring base station data frame synchronization in a wireless communication network system, R.O.C. Invention Patent No. I193852 (2002/8~2022/07)

  • Patent Holder: BenQ

  • Filing Date: 2002/8/29, Application No.: 091119647, Grant Date: 2003/12/11

• [P38] Jen-Shun Yang, Ray-Guang Cheng, Chien-Chao Tseng, Scheduler architecture and method for dynamic scheduling in mobile communications, R.O.C. Invention Patent No. I155247 (2002/4~2020/08)

  • Patent Holder: ITRI

  • Filing Date: 2000/8/11, Application No.: 089116183, Grant Date: 2002/4/21

• [P39] Ray-Guang Cheng, Spreading code allocation system and method for spread spectrum communication networks, R.O.C. Invention Patent No. I130172 (2001/4~2019/3) (Note: Included in 3GPP TR. 25.922, Sec. 8.1)

  • Patent Holder: Acer

  • Filing Date: 1999/3/19, Application No.: 088104305, Grant Date: 2001/4/1

• [P40] Chung-Ju Chang, Hung-Ming Chi, Ray-Guang Cheng Tsung-Pao Lin, Yao-Tsung Wang, Spectrum admission control mechanism for communication networks, R.O.C. Invention Patent No. I091844 (1997/12~2017/5)

  • Patent Holder: ITRI

  • Filing Date: 1997/5/1, Application No.: 086105773, Grant Date: 1997/12/11

• [P41] Chung-Ju Chang, Ray-Guang Cheng, Kun-Jui Lu, Hung-Yu Lee, Admission control method applied in communication networks, R.O.C. Invention Patent No. I089949 (1997/10~2016/10)

  • Patent Holder: Accton Technology

  • Filing Date: 1996/10/18, Application No.: 085112786, Grant Date: 1997/10/1

• [P42] Chung-Ju Chang, Ray-Guang Cheng, Tsung-Pao Lin, Ming-Chia Hsieh, Yao-Tsung Wang, Traffic control mechanism for asynchronous transfer mode communication networks, R.O.C. Invention Patent No. I081238 (1996/9~2016/3)

  • Patent Holder: ITRI

  • Filing Date: 1996/3/26, Application No.: 085103714, Grant Date: 1996/9/21

• [P43] Chung-Ju Chang, Lien-Chih Huang, Ray-Guang Cheng, Chi-Hsiang Yu, Method and apparatus for reducing the collision probability of hashing index rules in data communication networks, R.O.C. Invention Patent No. I071199 (1995/4~2014/7)

  • Patent Holder: Accton Technology

  • Filing Date: 1994/7/16, Application No.: 083106510, Grant Date: 1995/4/11

People's Republic of China (P.R.C.) Invention Patents

• [P44] Ray-Guang Cheng, Kuo-Jui Huang, Jen-Shun Yang, Communication systems and methods for providing resource allocation in communication networks, P.R.C. Invention Patent No. CN 1108131 (2013/2/21~2029/11/25)

  • Patent Holders: NTUST, ITRI

  • Filing Date: 2009/12/3, Application No.: ZL 200910251218.3, Grant Date: 2012/12/26

• [P45] Ray-Guang Cheng, Tsun-Yi Wang, Jen-Shun Yang, Distributed medium access protocol for wireless mesh networks, P.R.C. Invention Patent No. CN1878120A (2006/5~2026/4)

  • Patent Holder: ITRI

  • Filing Date: 2006/5/8, Application No.: CN200610076593, Grant Date: 2009/8/26

• [P46] Ray-Guang Cheng, Chien-Chou Hou, Method for automatically collecting information and information collection system, P.R.C. Invention Patent No. CN1319400C (2003/12~ 2023/11)

  • Patent Holder: BenQ

  • Filing Date: 2003/12/29, Application No.: CN200310124276, Grant Date: 2007/5/30

• [P47] Ray-Guang Cheng, Method for a wireless terminal to register with a communication system and the communication system, P.R.C. Invention Patent No. CN1298190C (2007/1~2023/11)

  • Patent Holder: BenQ

  • Filing Date: 2003/11/6, Application No.: CN200310118168, Grant Date: 2007/1/31

• [P48] Phone Lin, Yi-Ping Lin, Kuan-Hua Tu, Ray-Guang Cheng, Overflow control method for ensuring base station data frame synchronization in a wireless communication network system, P.R.C. Invention Patent No. CN1240240C (2006/2~2026/2)

  • Patent Holder: BenQ

  • Filing Date: 2002/9/20, Application No.: CN02142765, Grant Date: 2006/2/1

• [P49] Jen-Shun Yang, Ray-Guang Cheng, Chien-Chao Tseng, System and method for scheduling and distributing protocol data units, P.R.C. Invention Patent No. CN1230013C (2005/11~2025/11)

  • Patent Holder: Teltel

  • Filing Date: 2002/4/16, Application No.: CN02117202, Grant Date: 2005/11/30

• [P50] Ray-Guang Cheng, Phone Lin, Yi-Ping Lin, Relay signal transmission method for mobile communication systems, P.R.C. Invention Patent No. CN1215660C (2005/8~2025/8)

  • Patent Holder: BenQ

  • Filing Date: 2001/10/30, Application No.: CN01137571, Grant Date: 2005/8/17

Japan Invention Patents

• [P51] Fang-Ching Ren, Ray-Guang Cheng, Chien-Ming Chou, Kun-Ying Hsieh, System and method for channel selection management in a wireless communication network, Japan Patent No.: 4695656 (2008/1~2028/1)

  • Patent Holder: ITRI

  • Filing Date: 2008/1/10, Grant Date: 2011/3/4

South Korea Invention Patents

• [P52] Fang-Ching Ren, Ray-Guang Cheng, Chien-Ming Chou, Kun-Ying Hsieh, System and methods for channel selection management in a wireless communication network, South Korea Patent No.: 10-0960705 (2008/1~2028/1)

  • Patent Holder: ITRI

  • Filing Date: 2008/1/1, Grant Date: 2010/5/24