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Hyung-Sin Kim (김형신)

   
 Profile
  • Postdoctoral Scholar
  • Building Energy Transportation Systems (BETS) group (Adviser: David Culler)
  • Computer Science Division
  • University of California, Berkeley
  • Address: Soda Hall Room 447/410, Berkeley, CA, USA
  • E-mail: hs.kim@cs.berkeley.edu

Work Experience
  • Software Engineer at HamiltonIoT (Aug. 2017 - Current) [WebSite]
  • Postdotoral Researcher, Building Energy Transportation Systems (BETS) group at University of California, Berkeley (Adviser: Dr. David E. Culler, Sep. 2016 - Current)
  • Postdotoral Researcher, Network Laboratory (NETLAB) at Seoul National University (Adviser: Dr. Saewoong Bahk, Mar. 2016 - Aug. 2016)
  • Undergraduate Researcher, Transceiver Technology Laboratory (TTL) at Seoul National University (Sep. 2008 - Feb. 2009)



Teaching Experience
  • Instructor, Embedded Networked Systems for Internet of Things (UC Berkeley, CS 294-144, Fall 2017)
  • Teaching Assistant, Digital Signal Processing (Seoul National University, Spring 2009, Spring 2010)
  • Teaching Assistant, Advanced Digital Communication (Seoul National University, Spring 2009)



Education
  • Ph.D from ECE department at Seoul National University (Adviser: Dr. Saewoong Bahk, Mar. 2011 - Feb. 2016) - Outstanding Ph.D's Thesis Award
  • M.S from ECE department at Seoul National University (Adviser: Dr. Yong-Hwan Lee, Mar. 2009 - Feb. 2011) - Outstanding Master's Thesis Award
  • B.S from ECE department at Seoul National University (Mar. 2005 - Feb. 2009) - Summa Cum Laude
  • Seoul Foreign Language High School (Mar. 2002 - Feb. 2005) 



Research Interests
  • Thread network implementation and evaluation
  • Hamilton: Flexible, open source $10 wireless sensor system for energy efficient building operation
  • Communication and network protocols for low power and lossy networks (TCP over RPL, QU-RPL, PC-RPL, DT-RPL, ORPL-DT)
  • BLE-based IoT network (ALBER, CABLE)
  • Routing protocols for MANET (ORGMA)
  • Low power wireless system for electronic price tag management (SHDP, MarketNet)
  • Uplink channel sounding in TDD-based cellular systems



Professional Services
  • 2017: Paper Review of IEEE TMC, IEEE TWC, IEEE TC, IEEE CL, IEEE IoT, Sensors
  • 2016: Paper Review of IEEE TMC, IEEE TWC, IEEE SJ, MIS
  • 2009~2015: Student volunteer chair at SenSys'15, and Paper Review of IEEE TWC, IEEE SJ, IEEE TVT, IEEE ICC, IEEE VTC



Awards & Scholarships
  • Postdoctoral Fellowship Program, National Research Foundation of Korea, June 2016
  • Outstanding Ph. D. Thesis Award, ECE, Seoul National University, Feb. 2016.
  • Outstanding Research Award, Bio-mimetic Robot Research (BMRR) Center, Jan. 2016
  • IEEE SECON Travel Grant, IEEE Communications Society, May 2015.
  • Ph.D scholarship, Samsung-Electronics DMC laboratory, Sep. 2013.
  • Second Best Paper Award, IEEE WisNet, Jan. 2012.
  • Qualcomm Fellowship Award, Qualcomm Korea, Aug. 2011.
  • Global Ph.D Fellowship, National Research Foundation of Korea, Apr. 2011.
  • Outstanding M.S. Thesis Award, ECE, Seoul National University, Feb. 2011.
  • Bronze Award, Samsung-Electronics Human-tech Paper Prize, Feb. 2011.
  • Lecture/Research Scholarship, ECE, Seoul National University, Mar. 2010, Mar. 2009.
  • Jung-Soo Scholarship, Sep. 2009.
  • B.S. Summa Cum Laude Award, ECE, Seoul National University, Feb. 2009.
  • Science and Engineering Scholarship, National Research Foundation of Korea, Mar. 2005.



Publication
  Journals
  1. Hyung-Sin Kim, Jeonggil Ko, David E. Culler, and Jeongyeup Paek, "Challenging the IPv6 Routing Protocol for Low Power and Lossy Networks (RPL): A Survey," IEEE Communications Surveys & Tutorials. (impact factor: 17.188) [pdf] - To appear
  2. Hyung-Sin Kim, Hosoo Cho, Hongchan Kim, and Saewoong Bahk, "DT-RPL: Diverse Bidirectional Traffic Delivery through RPL Routing Protocol in Low Power and Lossy Networks," Computer Networks, vol. 126, no. 24, pp. 150-161, Oct. 2017. (impact factor: 2.516) [pdf]
  3. Hyung-Sin Kim, JeongGil Ko, and Saewoong Bahk, "Smarter Markets for Smarter Life: Applications, Challenges and Deployment Experiences," IEEE Communications Magazine, vol. 55, no. 5, pp. 34-41, May 2017. (impact factor: 10.435) [pdf]
  4. Hyung-Sin Kim, Hongchan Kim, Jeongyeup Paek, and Saewoong Bahk, "Load Balancing under Heavy Traffic in RPL Routing Protocol for Low Power and Lossy Networks," IEEE Transactions on Mobile Computing, vol. 16, no. 4, pp. 964-979, Apr. 2017. (impact factor: 3.822) [pdf]
  5. Hyung-Sin Kim, Myung-Sup Lee, Young-June Choi, JeongGil Ko, and Saewoong Bahk, "Reliable and Energy Efficient Downward Packet Delivery with Asymmetric Transmission Power-based Networks," ACM Transactions on Sensor Networks, vol. 12, no. 4, pp. 34:1-34:25, Sep. 2016. (impact factor: 1.448) [pdf]
  6. Seungbeom Jeong, Hyung-Sin Kim, Sung-Guk Yoon, and Saewoong Bahk, "Q-BT: Queue-based Burst Transmisson over an Asynchronous Duty-cycle MAC Protocol," IEEE Communications Letters, vol. 20, no. 4, pp. 812-815, Apr. 2016. (impact factor: 1.268) [pdf]
  7. Hyung-Sin Kim, Heesu Im, Myung-Sup Lee, Jeongyeup Paek, and Saewoong Bahk, "A Measurement Study of TCP over RPL in Low-power and Lossy Networks," Journal of Communications and Networks, vol. 17, no. 6, pp. 647-655, Dec. 2015. (impact factor: 1.007) [pdf]
  8. Hyung-Sin Kim, Jae-Seok Bang, and Yong-Hwan Lee, "Distributed Network Configuration in Large-Scale Low Power Wireless Networks," Computer Networks, vol. 70, pp. 288-301, Sep. 2014. (impact factor: 1.282) [pdf]
  9. Taeseop Lee, Sangkyu Park, Hyung-Sin Kim, and Saewoong Bahk, "Sounding Resource Management for QoS Support in Massive MIMO Systems," Computer Networks, vol. 70, pp. 142-153, Sep. 2014. (impact factor: 1.282) [pdf]
  10. Hyung-Sin Kim, Seung-Hwan Lee, and Yong-Hwan Lee, "Uplink Channel Sounding in TDD-OFDM Wireless Cellular Systems," Wireless Personal Communications, vol. 73, no. 3, pp. 563-585, Nov. 2013. (impact factor: 0.979) [pdf]
  11. Hee-Nam Cho, Hyung-Sin Kim, and Yong-Hwan Lee, "Coordinated User Scheduling Based on Hybrid CSI in Multi-User MIMO Relay System with Limited Feedback," Wireless Personal Communications, vol. 67, no. 4, pp. 937-950, Dec. 2012. (impact factor: 0.979) [pdf]
  12. Seung-Hwan Lee, Hyung-Sin Kim, and Yong-Hwan Lee, "Mitigation of Co-channel Interference in Bluetooth Piconets," IEEE Transactions on Wireless Communications (letter), vol. 11, no. 4, pp. 1249-1254, Apr. 2012. (impact factor: 2.762) [pdf]
  13. Seung-Hwan Lee and Hyung-Sin Kim, "Channel Sounding with Partial Channel Information in the Uplink of OFDM-based Wireless Systems," Wireless Personal Communications , vol. 63, no. 4, pp. 895-916, Apr. 2012. (impact factor: 0.979) [pdf]
  14. Seung-Hwan Lee, Hyung-Sin Kim, and Yong-Hwan Lee, "Complexity Reduced ML Detection for Other-Cell Interference Mitigation in SIMO Cellular Systems," European Transactions on Telecommunications, vol. 22, no. 1, pp. 51-60, Jan. 2011. (impact factor: 1.354) [pdf]
  15. 조호수, 최경산, 남창원, 김형신, 박세웅, "이동통신 네트워크 기술의 진화와 발전," SK Telecommunications Review, 2014년 12월. [pdf]
  Conferences
  1. Dong-Kyu Kang, Hyung-Sin Kim, and Saewoong Bahk, "ORPL-DT: Opportunistic Routing for Diverse Traffic in Multihop IoT Networks," IEEE GLOBECOM'17, Dec. 2017.
  2. Hyung-Sin Kim, Jeongyeup Paek, David E. Culler, and Saewoong Bahk, "Do Not Lose Bandwidth: Adaptive Transmission Power and Multihop Topology Control," IEEE International Conference on Distributed Computing in Sensor Systems (IEEE DCoSS'17), June 2017. (acceptance ratio: 36.0%, Best Paper Runner-up) [pdf]
  3. Taeseop Lee, Jonghun Han, Myung-Sup Lee, Hyung-Sin Kim, and Saewoong Bahk, "CABLE: Connection Interval Adaptation for BLE in Dynamic Wireless Environments," IEEE International Conference on Sensing, Communication and Networking (IEEE SECON'17), June 2017. (acceptance ratio: 26.4%) [pdf]
  4. Jeongyoon Heo, Hyung-Sin Kim, Okhwan Lee and Saewoong Bahk, "Energy Efficient Spatial Stream Allocation for Multi-User MIMO in 802.11ac Networks," International Conference on Information and Communication Technology Convergence (ICTC'16), Oct. 2016.
  5. Taeseop Lee, Myung-Sup Lee, Hyung-Sin Kim, and Saewoong Bahk, "A Synergistic Architecture for RPL over BLE," IEEE International Conference on Sensing, Communication and Networking (IEEE SECON'16), June 2016. (acceptance ratio: 26.3%) [pdf]
  6. Hyung-Sin Kim, Hosoo Cho, Myung-Sup Lee, Jeongyeup Paek, JeongGil Ko, and Saewoong Bahk, "MarketNet: An Asymmetric Transmission Power-based Wireless System for Managing e-Price Tags in Markets," ACM Conference on Embedded Networked Sensor Systems (ACM SenSys'15), Nov. 2015. (acceptance ratio: 20.4%) [pdf] [slide] [presentation]
  7. Minghong Lin, Hyung-Sin Kim, and Saewoong Bahk, "Transmission power control for large scale industrial applications in low power and lossy networks," International Conference on Information and Communication Technology Convergence (ICTC'15), Oct. 2015.
  8. Hyung-Sin Kim, Jeongyeup Paek, and Saewoong Bahk, "QU-RPL: Queue Utilization based RPL for Load Balancing in Large Scale Industrial Applications," IEEE International Conference on Sensing, Communication and Networking (IEEE SECON'15), June 2015. (acceptance ratio: 28.3%) [pdf] [slide]
  9. Taeseop Lee, Hyung-Sin Kim, Sangkyu Park, and Saewoong Bahk, "Mitigation of Sounding Pilot Contamination in Massive MIMO Systems," IEEE International Conference on Communications (IEEE ICC'14), June 2014. (acceptance ratio: 38.0%) [pdf]
  10. Hyunjoong Lee, Hyung-Sin Kim, and Saewoong Bahk, "InFRA: In-Frame Rate Adaptation in Fast Fading Channel Environments," IEEE International Conference on Communications (IEEE ICC'14), June 2014. (acceptance ratio: 38.0%) [pdf]
  11. Hyung-Sin Kim, Young-June Choi, and Saewoong Bahk, "Elimination of Multi-hop Transmission from Downlink in Low Power and Lossy Networks," IEEE International Conference on Communications (IEEE ICC'14), June 2014. (acceptance ratio: 38.0%) [pdf]
  12. Jae-Seok Bang, Jin-Seok Han, Hyung-Sin Kim, and Yong-Hwan Lee, "Fault-tolerant Resource Allocation in Multi-hop Wireless Sensor Networks," IEEE Wireless Communications and Networking Conference (IEEE WCNC'14), Apr. 2014. [pdf]
  13. Hyung-Sin Kim, Jae-Seok Bang, and Yong-Hwan Lee, "Distibuted Multi-Hop Network Association in Large-Scale Wireless Sensor Networks," IEEE International Conference on Distributed Computing Systems Workshop (IEEE ICDCSW'13), July 2013. (acceptance ratio: 26.7%) [pdf]
  14. Tae-Hoon Kim, Jin-Seok Han, Hyung-Sin Kim, and Yong-Hwan Lee,"Alleviation of Contention Collision in IEEE 802.15.4 Networks, " IEEE Wireless Communications and Networking Conference (IEEE WCNC'13), Apr. 2013. [pdf]
  15. Hyung-Sin Kim, Jin-Seok Han, Jae-Seok Bang, and Yong-Hwan Lee, "Distributed Scalable Network Association in Wireless Sensor Networks," IEEE International Conference on Internet of Things (IEEE iThings'12), Nov. 2012. [pdf]
  16. Hyung-Sin Kim, Jin-Seok Han, and Yong-Hwan Lee, "Scalable Network Joining Mechanism in Wireless Sensor Networks," IEEE Topical Conference on Wireless Sensors and Sensor Networks (IEEE WisNet'12), Jan. 2012. (Second Best Paper Award) [pdf]
  17. Jin-Seok Han, Hyung-Sin Kim, Jae-Seok Bang, and Yong-Hwan Lee, "Interference Mitigation in IEEE 802.15.4 Networks," IEEE Global Communications Conference (IEEE GLOBECOM'11), Dec. 2011. (acceptance ratio: 36.6%) [pdf]
  18. Jin-Seok Han, Seung-Hwan Lee, Hyung-Sin Kim, and Yong-Hwan Lee, "Performance Improvement of IEEE 802.15.4 in the Presensce of Co-channel Interference," IEEE Wireless Communications and Networking Conference (IEEE WCNC'11), Mar. 2011. [pdf]
  19. Hyung-Sin Kim, Seung-Hwan Lee, and Yong-Hwan Lee, "Performance Analysis of Uplink Sounding in the Frequency Selective Fading Channels," IEEE TENCON'10, Nov. 2010. [pdf]
  20. Hyung-Sin Kim, Seung-Hwan Lee, and Yong-Hwan Lee, "Channel Sounding for Multi-sector Cooperative Beamforming in TDD-OFDM Wireless Systems," IEEE International Conference on Communications (IEEE ICC'10), May 2010. (acceptance ratio: 39.5%) [pdf]
  21. Hyung-Sin Kim, Seung-Hwan Lee, and Yong-Hwan Lee, "Channel Sounding for Multi-sector Cooperation in OFDM-based Wireless Systems," IEEE International Conference on Advanced Communications Technology (IEEE ICACT'10), Feb. 2010. [pdf]
  Posters/Demos
  1. Michael P Andersen, Hyung-Sin Kim, and David E. Culler, "Hamilton: A Cost-Effective, Low Power Networked Sensor for Indoor Environment Monitoring," ACM International Conference on Systems for Energy-Efficient Built Environments (ACM BuildSys'17) (demo), Nov. 2017.
  2. Hyung-Sin Kim, Jeongyeup Paek, and Saewoong Bahk, "Transmission Power Control in IPv6 Routing Protocol for Low-Power Wireless Network," ACM Conference on Embedded Networked Sensor Systems (ACM SenSys'16) (poster), Nov. 2016. [pdf]
  3. Taeseop Lee, Hyung-Sin Kim, Myung-Sup Lee, and Saewoong Bahk, "RPL over Bluetooth Low Energy," ACM Conference on Embedded Networked Sensor Systems (ACM SenSys'15) (demo), Nov. 2015. [pdf]
  Under Review
  1. Hyung-Sin Kim, Jeongyeup Paek, David E. Culler, and Saewoong Bahk, "PC-RPL: Adaptive Transmission Power and Multihop Topology Control in Low Power and Lossy Networks," IEEE Transactions on Mobile Computing.
  2. Taewon Suh, Hyung-Sin Kim, JeongGil Ko, Vishag Badrinarayanan, and Saewoong Bahk, "Electronic Shelf Labels: A Design Scientific Approach and Research Agenda," International Journal of Technological Innovation, Entrepreneurship and Technology Management.
  3. Kaifei Chen, Jonathan Furst, John Kolb, Hyung-Sin Kim, Xin Jin, David E. Culler, and Randy H. Katz, "SnapLink: Fast and Accurate Vision-based Appliance Control in Smart Buildings," Proceedings of the ACM on Interactive, Mobile, Wearable and Ubiquitous Technologies.
  4. Daeho Kang, Hyung-Sin Kim, Changhee Joo, and Saewoong Bahk, "ORGMA: Reliable Opportunistic Routing with Gradient Forwarding for MANETs," Computer Networks.
  Patents
  1. Hyung-Sin Kim, Bongsoo Noh, Saewoong Bahk, and Young-June Choi, "System for downlink transmission using heterogeneous power,"US patent, Publication no. 20160262115, Sep. 2016, Application no. 15059688, Mar. 2016.
  2. Yong-Hwan Lee, Hyung-Sin Kim, and Jae-Seok Bang, "A Method of network subscription in a wireless network,"US patent, Publication no. 20150350022, Dec. 2015, Application no. 14762230, Dec. 2013.
  3. Yong-Hwan Lee, Hyung-Sin Kim, and Seung-Hwan Lee, "Self-construction system of wireless sensor network and method for self-construction of wireless sensor network using the same," US patent, Publication 09240973, Jan. 2016, Application 14001033, Jan. 2012.
  4. Yong-Hwan Lee, Hyung-Sin Kim, and Seung-Hwan Lee, "Apparatus and method for transmitting and receiving sounding signal in a wireless communication system," US patent, Publication no. 08982718, Mar. 2015, Application no. 13020906, Feb. 2011.
  5. Yong-Hwan Lee, Seung-Hwan Lee, and Hyung-Sin Kim, "Method and device for send beamforming and multiple user scheduling for multiple sector cooperative transmission in a multiple antenna system," US patent, Publication no. 08929244, Jan. 2015, Application no. 13813138, Jan. 2011.
  6. 김형신, 박세웅 "비대칭 전송 전력 기반 무선 네트워크에서 신호 송수신 방법," 한국, 등록 10-691561, Dec. 2016, 출원, 10-2015-0144416, Oct. 2015.
  7. 김형신, 백정엽, 박세웅 "다중 홉 구조 무선통신 시스템에서 부하 분산을 고려한 부모 노드 선택 방법 및 이를 위한 장치," 한국, 등록 10-1670809, Oct. 2016, 출원, 10-2015-0082604, June 2015.
  8. 김형신, 노봉수, 박세웅, 최영준 "비대칭 전력 하향 링크 전송 시스템," 한국, 등록, 10-1601740, Mar. 2016, 출원, 10-2015-0030577, Mar. 2015.
  9. 이용환, 김형신, 방재석, "무선 네트워크에서 네트워크 가입 방법," 한국, 등록, 10-1454991, Oct. 2014, 출원, 10-2013-0006394, Jan. 2013.
  10. 이용환, 김형신, 이승환, "무선 센서 네트워크의 자가구성 시스템 및 이를 이용한 무선 센서 네트워크의 자가구성 방법," 한국, 등록, 10-1326549, Nov. 2013, 출원, 10-2012-0133266, Nov. 2012.
  11. 이용환, 방재석, 김형신, "다중 사용자 혼성 매체 접근 제어 기반의 무선 자원 관리 방법," 한국, 등록, 10-1339604, Dec. 2013, 출원, 10-2012-0025904, Mar. 2012.
  12. 이용환, 김태훈, 김형신, 한진석 "경쟁 기반으로 신호를 전송하는 다중 사용자 무선 통신 방법," 한국, 등록, 10-1333920, Nov. 2013, Sep. 2013, 출원, 10-2012-0023342, Mar. 2012.
  13. 이용환, 김형신, 이승환, "무선 센서 네트워크의 자가구성 시스템 및 이를 이용한 무선 센서 네트워크의 자가구성 방법," 한국, 등록, 10-1268009, May 2013, 출원, 10-2011-0015589, Feb. 2011.
  14. 이용환, 이승환, 김형신, "다중안테나 시스템에서 다중 섹터 협력 전송을 위한 송신 빔포밍과 다중 사용자 스케줄링 방법 및 장치," 한국, 공개, 10-2012-0011952, Feb. 2012, 출원, 10-2010-0073236, July 2010.
  15. 이용환, 김형신, 이승환, "무선 통신 시스템에서 사운딩 신호 송/수신 장치 및 방법," 한국, 등록, 10-1656527, Sep. 2016, 출원, 10-2010-0011210, Feb. 2010.
  Invited Talks
  1. "Hamilton: Low Cost and Low Power Networked Sensor Platform for Internet of Things", Korea Electronics Technology Institute (KETI), Institute of New Media and Communications (INMC) at Seoul National University (SNU), College of Medicine at SNU, Department of Architectural Engineering at SNU, School of Electrical and Electronic Engineering at Yonsei University, Center of Software Security and Assurance (CSSA) at Korea University, Department of Software and Computer Engineering at Ajou University, and Department of Information Communications Engineering at Chungnam National University, July 2017.