Mar. 2023 ~ Current
Assistant Professor, Computer Engineering, Andong National University
Oct. 2022 ~ Feb. 2023
Postdoctoral Researcher, Computer Science and Engineering, Kongju National University
Digital Twin
Issues: indoor positioning, user mobility, data quality
Objective: effective and efficient data acquisition through wireless communication
Wireless Ad-hoc and Sensor Networks
Routing Issues: location service, geographic unicasting
QoS Provision: real-time and reliability for communication
Taehun Yang, (2022). Highly Reliable and Cost-Efficient Microscale Sensing for Urban Digital Twin (PhD Dissertation). Chungnam National University, Daejeon, Republic of Korea.
Abstract
In the age of digital transformation, a digital twin as a key technology has been applied throughout industry and society in recent years. Especially, an urban digital twin, as a next-generation technology to promote a smart city, has been being actively researched and developed over the world. The urban digital twin fundamentally requires a vast number of data, which involve all information corresponding city’s physical assets.
In general, a city may be composed of many macroscale urban areas such as business, shopping, and school districts. Each district also consists of a large number of microscale urban areas. Due to high costs in constructing network infrastructure, macroscale urban sensing, which senses data for physical assets only at a few spots in a district, has been the predominant sensing method for designing a smart city. However, microscale urban sensing, which may collect digital data at many spots in a district, seems inevitable for envisioning a true urban digital twin.
Today there are a tremendous number of mobile devices in a district, and this may provide a good way of collecting digital data from many pervasive sensors in a district without the extra network infrastructure. Namely, such mobile devices can be the role of data acquisition from their nearby sensors. This dissertation proposes two microscale urban sensing methods with cost-effectiveness and high reliability by using mobile devices. For these sensing methods, the actual field experiments have been carried out and show that both methods can be taken into consideration as effective solutions for future microscale urban sensing.
[1] Taehun Yang, Hakgyun Roh, Jinsoo Han, Soochang Park, and Sang-Ha Kim, "Microscale Particulate Matter Monitoring With Reliable Event Transport in Urban Environments," IEEE Systems Journal, vol. 14, no. 2, pp. 3057-3060, June 2020.
[2] Taehun Yang and Jinsoo Han, "Integrated Management Strategy with Feasible Smartness over Heterogeneous IoT Environments," Electronics, vol. 10, no. 2, Jan. 2021.
[3] Sang-Hoon Lee, Taehun Yang and Tae-Sung Kim, "Mobile-Based Sensing Scheme to Minimize Battery Power Consumption for Urban Monitoring Systems," Electronics, vol. 10, Jan. 2021.
[4] Taehun Yang, Sang-Hoon Lee and Soochang Park, "AI-Aided Individual Emergency Detection System in Edge-Internet of Things Environments," Electronics, vol. 10, no. 19, Sep. 2021.
[5] Sang-Hoon Lee, Taehun Yang, Tae-Sung Kim and Soochang Park, "TTGN: Two-Tier Geographical Networking for Industrial Internet of Things With Edge-Based Cognitive Computing," IEEE Access, vol. 10, pp. 22238-22246, Mar. 2022.
[6] Taehun Yang, Soochang Park and Sang-Ha Kim, "Collaborative Reliable Event Transport Based on Mobile-Assisted Sensing in Urban Digital Twin," Electronics, vol. 11, no. 10, May 2022.
[1] Cheonyong Kim, Hyunchong Cho, Sangdae Kim, TaehunYang, Sang-Ha Kim, "Sink Mobility Support Scheme for Continuous Object Tracking in Wireless Sensor Networks," IEEE Advanced Information Networking and Applications (AINA), Florence, Italy, pp. 452-457 Mar. 2016.
[2] Taehun Yang, Cheonyong Kim, Sangdae Kim, Euisin Lee, Sang-Ha Kim, "Enhanced Real-time Transmission using Time Gain in Wireless Sensor Networks," 2016 15th ACM/IEEE International Conference on Information Processing in Sensor Networks (IPSN), Vienna, Austria, Apr. 2016.
[3] Sangdae Kim, Jeongcheol Lee, Hyunchong Cho, Taehun Yang, Cheonyong Kim, and Sang-Ha Kim, "Multipath-based Opportunistic Routing Scheme for Large-scale Wireless Sensor Networks," IEEE Industrial Electronics Conference (IECON), Crans-Montana, Switzerland, pp. 4671-4676, Oct. 2016.
[4] Sangdae Kim, Hyunchong Cho, Taehun Yang, CheonyongKim, and Sang-Ha Kim, "Low-Cost Multipath Routing Protocol by Adapting Opportunistic Routing in Wireless Sensor Networks," IEEE Wireless Communications and Networking Conference (WCNC), San Francisco, CA, USA, Mar. 2017.
[5] Cheonyong Kim, Yongbin Yim, Taehun Yang, Sangdae Kim, and Sang-Ha Kim, "Multipath Management Scheme for Supporting Sink Mobility in Wireless Sensor Networks," IEEE Wireless Communications and Networking Conference (WCNC), San Francisco, CA, USA, Mar. 2017.
[6] Sangdae Kim, Taehun Yang, Cheonyong Kim, HyunchongCho, and Sang-Ha Kim, "Dynamic Anchors based Void Avoidance Scheme for Real-time Application in WSNs," IEEE Vehicular Technology Conference (VTC-Fall), Toronto, Canada, Sep. 2017.
[7] Hyunchong Cho, Seungmin Oh, Yongbin Yim, SangdaeKim, Taehun Yang, and Sang-Ha Kim, "The Energy Efficient and Disjointed Multipath for Void Handling in Wireless Sensor Networks," IEEE Vehicular Technology Conference (VTC-Fall), Toronto, Canada, Sep. 2017.
[8] Taehun Yang, Cheonyong Kim, Sangdae Kim, Sang-Ha Kim, and Soochang Park, "Reliable push notification for mobile users in interactive smart mobile applications," 2018 17th ACM/IEEE International Conference on Information Processing in Sensor Networks (IPSN), Porto, Portugal, Apr. 2018.
[1] Taehun Yang, Yongbin Yim and Kwansoo Jung, "Reliable Real-Time Data Dissemination Protocol in Wireless Sensor Networks," The Journal of Korean Institute of Communications and Information Sciences, vol. 40, no. 8, pp. 1567~1576, Aug. 2015.
[2] Sangdae Kim, Cheonyong Kim, Hyunchong Cho, TaehunYang and Sang-Ha Kim, "Symmetric Inter-Communication Scheme among Mobile Objects in Wireless Sensor Networks," The Journal of Korean Institute of Communications and Information Sciences, vol. 40, no. 10, pp. 2014~2025, Oct. 2015.
[3] Taehun Yang, Sangdae Kim, Hyunchong Cho, CheonyongKim and Sang-Ha Kim, "Local Grid-based Multipath Routing Protocol for Mobile Sink in Wireless Sensor Networks," Journal of KIISE, vol. 43, no. 12, pp. 1428~1436, Dec. 2016.
[4] Cheonyong Kim, Taehun Yang, Sangdae Kim, HyunchongCho and Sang-Ha Kim, "A Real-time Multicasting Protocol using Time Deadline in Wireless Sensor Networks," Journal of KIISE, Vol. 44, No. 1, pp. 107~113, Jan. 2017.
[5] Taehun Yang, Hyunchong Cho, Sangdae Kim, CheonyongKim and Sang-Ha Kim, "Improved Real-time Transmission Scheme using Temporal Gain in Wireless Sensor Networks," Journal of KIISE, vol. 44, no. 10, pp. 1062~1070, Oct. 2017.
[1] Taehun Yang, Sangdae Kim, Cheonyong Kim, HyunchongCho and Sang-Ha Kim, "Real-time Dissemination Protocol for Reliability Improvementin Wireless Sensor Networks," Proceedings of Symposium of the Korean Institute of communications and Information Sciences, pp. 63~64, Jun. 2015.
[2] Cheonyong Kim, Hyunchong Cho, Taehun Yang, SangdaeKim and Sang-Ha Kim, "Opportunistic Multipath Routing for Enhancing End-to-end Reliability in Wireless Sensor Networks," Proceedings of Symposium of the Korean Institute of communications and Information Sciences, pp. 65~66, Jun. 2015.
[3] Sangdae Kim, Cheonyong Kim, Hyunchong Cho, TaehunYang and Sang-Ha Kim, "Accuracy enhancement for Continuous Object Tracking in Wireless Sensor Networks," Proceedings of Symposium of the Korean Institute of communications and Information Sciences, pp. 1366~1367, Jun. 2015.
[4] Taehun Yang, Sangdae Kim, Cheonyong Kim, HyunchongCho and Sang-Ha Kim, "Wireless Sensor Network Construction based on Wi-Fi for Internet of Things Services," Proceedings of Symposium of KIISE, pp. 513~515, Jun. 2016.
[5] Cheonyong Kim, Taehun Yang, Sangdae Kim, HyunchongCho and Sang-Ha Kim, "Real-time Multicasting Scheme using Time Limitation in Wireless Sensor Networks," Proceedings of Symposium of KIISE, pp. 504~506, Jun. 2016.
[6] Taehun Yang, Hyunchong Cho, Sangdae Kim, CheonyongKim and Sang-Ha Kim, "Comparative Study for Information Collection System using Short-range Wireless Technology in Internet of Things," Proceedings of Symposium of the Korean Institute of communications and Information Sciences, pp. 1288~1289, Jun. 2017.
Feb. 2022
Ph.D., Computer Communication and Security, Chungnam National University
Dissertation: Highly Reliable and Cost-Effective Microscale Sensing for Urban Digital Twin
Advisor: Prof. Sang-Ha Kim
Aug. 2014
B.S., Computer Science and Engineering, Chungnam National University
Thesis: Service of Providing Power Consumption about Power Consumption of Mobile Applications
[2024-Spring]
Operating System
Database (incl. practice)
Compiler (incl. practice)
[2023-Spring]
Operating System
Database Theory (incl. practice)
Compiler (incl. practice)
[2024-Fall]
Discrete Mathematics
Artificial Intelligence (incl. practice)
Bigdata (incl. practice)
[2023-Fall]
Discrete Mathematics
Artificial Intelligence (incl. practice)
Bigdata (incl. practice)