Mobile Networking Laboratory - Yonsei University

Research Area

Large-scale Wireless Sensor Networks

In near future, the Internet infrastructure (i.e., Internet of Things) will connect trillions of sensors and machine objects together to truly realize the vision of Ubiquitous Computing. The focus of our research is given on the solutions for ultra large-scale wireless sensor networks.

Wireless LAN Technology

While WLAN has been very successful in providing high capacity at low cost, it involves inefficiency due to the lack of sophisticated resource management. The focus of our research is given on such issues as WLAN load balancing, configuration optimization for capacity enhancement and mobile multimedia support.

Mobile Cloud Computing

Mobile Cloud Computing is the combination of cloud computing, mobile computing and wireless networks to bring rich computational resources to mobile users. Our research extends across a broad range of relevant mobile devices including wearable devices, IoT devices.

Multi-hop Wireless Networking

Multi-hop wireless networking (e.g., Wireless Mesh Networks, Vehicular Networks) can facilitate various mobile services more effectively than conventional one-hop wireless networking. The focus of our research is given on such issues as multi-hop routing, resource scheduling, frequency channel allocation, DTN (Delay/Disruption Tolerant Networking) techniques and interference handling.

Software-defined networking(SDN) for Internet of Things(IoT)

Software Defined Networking (SDN) is a new networking paradigm which enables centralized network management that allows efficient optimization and configuration. In IoT which will be an extremely diverse networking environment, SDN is the potential solution for IoT resource management.

Professor

Prof. Seung-Jae Han

seungjaehan yonsei.ac.kr
Resume file (pdf)

4th Engineering building (Building No.122), D911, Department of Computer Science, Yonsei University
50 Yonsei-ro, Seodaemun-gu, Seoul 03722, Republic of Korea

+82-2-2123-5723

+82-2-365-2579

Research Interests

Wireless networks, Multimedia networking, Embedded systems, Sensor networks, Telemetric services

Employment

Yonsei University, Seoul, Korea, Professor

September, 2005 ~ Now

Bell Laboratories, Lucent Technologies, Murray Hill, NJ, Member of Technical Staff

July, 1999 ~ August, 2005

University of Michigan, Ann Arbor, MI, Post-doctoral Research Scientist

September, 1998 ~ July, 1999

Education

University of Michigan , Ann Arbor , MI Ph.D., Computer Science & Engineering, August 1998 Thesis Title: Low-Cost Failure Recovery for Real-Time Communication in Multi-Hop Networks, Advisor: Kang G. Shin

Seoul National University, Seoul, Korea M.S., Computer Engineering, February 1991

Seoul National University , Seoul , Korea B.S., Computer Engineering, February 1989

Honour and Award

Teaching Excellence Award, Yonsei University (2006)

OKAWA Foundation Research Grant (2006)

Bell Laboratories Teamwork Award (2003, 2005)

Bell Laboratories President's Silver Award (2002)

Samsung Human-Tech Thesis Bronze Prize (1998)

University of Michigan Summer Research Fellowship (1993)

Members

Alumni

Publications

Journal Papers

J. Sung, Seungjae Han, and J. Kim, “Cloning-based virtual machine pre-provisioning for resource constrained edge cloud server”, Cluster Computing, Springer, June, 2023.
C. Bak and S.Han. “Contention alleviation in WiFi networks by using light-weight machine learning model” Computer Networks, Elsevier Vol 222, February, 2023.
H. Kim, M. Kim, and Seungjae Han, “Collision-free optimal packet scheduling algorithm for multi-hop wireless IoT networks”, Computer Networks, Elsevier Vol 206, April, 2022.
J. Han and S. Han. "Hidden terminal-aware access point selection for IEEE 802.11ah networks" Computer Communications 173 2021: 1-13.
J. Sung and S. Han. “Data-Bundling Proxy to Aggregate Transmissions for Energy-Constrained Devices” Computer Communications 134 2019: 114–125.
J. Han and Seungjae Han, "Non-Intrusive Estimation of Available Throughput for IEEE 802.11 Link" Computer Networks 2018
S. Kim and Seungjae Han, “Distinguishing Social Contacts and Pass-by Contacts in DTN Routing”, Telecommunication Systems, Springer vol 68, 2018: 669-685
J. Han, H. Choi, Seungjae Han, “Acknowledgement Corruption: A New Aspect of Physical Layer Capture in IEEE 802.11 Networks”, Wireless Communications and Mobile Computing, vol 2018, 15 pages, 2018.
J. Sung and Seungjae Han, “Data Bundling for Energy Efficient Communication of Wearable Devices”, Computer Networks, Elsevier, Vol 121, Page 76-88, July, 2017.
S. Kim and Seungjae Han, “Delay-Tolerant Sensing Data Delivery for IoT Network by using Signal Strength Information”, Peer-to-Peer Networking and Applications, Vol 11, No 1, Page 181-197, 2018, Springer
S. Moon, S. Park and Seungjae Han, “Energy Efficient Data Collection in Sink-Centric Wireless Sensor Networks: a Cluster-Ring Approach“, Computer Communications, Elsevier, Vol 101. Page 12~25, March, 2017
M. Song, S. Moon, and Seungjae Han, “Self-Optimization of Handover Parameters for Dynamic Small Cell Networks”, Wireless Communications and Mobile Computing, Wiley, Vol. 15, No. 11, Page 1497~1517, August, 2015
K. Lee, H. Kim, S. Park, and Seungjae Han, “Satisfying the Target Network Lifetime in Wireless Sensor Networks”, Computer Networks, Elsevier, Vol 65, page 41-55, June 2014
S. Kim, Y. Jeong, and Seungjae Han, “Use of Contact Duration for Message Forwarding in Intermittently Connected Mobile Networks”, Computer Networks, Elsevier, Vol 64, page 38-54, May 2014
K. Lee, Y. Kim, H. Kim, and Seungjae Han, "A Myopic Mobile Sink Migration Strategy for Maximizing Lifetime of Wireless Sensor Networks", Wireless Networks, Springer, Vol. 20, No.2, page 303 - 318, February 2014
Y. Jeong, J. Kim, and Seungjae Han, "Interference Mitigation in Wireless Sensor Networks using Dual Heterogeneous Radios", Wireless Networks, Springer, Vol. 17, No.7, page 1699 - 1713, July 2011
E. Talipov, H. Shin, Seungjae Han, and H. Cha, "A Lightweight Stateful Address Autoconfiguration for 6LoWPAN", Wireless Networks, Springer, Vol. 17, No.1, page 183 - 197, January 2011
Y. Bejerano, K. Lee, Seungjae Han, and A. Kumar, "Single-Path Routing for Life Time Maximization in Multi-hop Wireless Networks", Wireless Networks, Springer, Vol. 17, No.1, page 263 - 275, January 2011
H. Choi and Seungjae Han, "Domain Load Balancing Routing for Multi-Gateway Wireless Mesh Networks", Wireless Networks, Springer, Vol. 16, No.8, page 2105 - 2122, November 2010
Y. Bejerano, Seungjae Han, and M. Smith, "A Novel Frequency Planning Algorithm for Mitigating Unfairness in Wireless LANs", Computer Networks, Elsevier, Vol. 54, No.15, page 2575 - 2590, October 2010.
S. Cho, H. Shin, Seungjae Han, H. Cha, and R. Ha, "Density-Adaptive Network Reprogramming Protocol for Wireless Sensor Networks", Wireless Communications and Mobile Computing, Wiley, Vol. 10, No. 6, page 857 - 874, June 2010.
S. Sim, J. Park, Seungjae Han, and S. Lee, "Seamless IP Mobility Support for Flat-Architecture Mobile WiMAX Networks", IEEE Communications Magazine. Vol. 47, No. 6, page 142 - 149, June 2009.
Y. Bejerano and Seungjae Han, "Cell Breathing Techniques for Load Balancing in Wireless LANs," IEEE Transactions on Mobile Computing, Vol. 8, No. 6, page 735 - 749, June 2009.
S. Park, Seungjae Han, S. Cho, "User Utility Discovery for Priority-based Network Resource Pricing", Computers & Industrial Engineering, Elsevier, Vol. 56, No. 4, page 1357 - 1368, May 2009.
D. Ko, Seungjae Han, H. Cha, and R. Ha, "A traffic control system for IEEE 802.11 networks based on available bandwidth estimation", Wireless Communications & Mobile Computing, Wiley, Vol. 8, No. 4, page 409-419, May 2008
J. Park and Seungjae Han, "Load Balancing for video streaming services in hierarchical wireless networks," Computer Networks, Elsevier, Vol. 52, No.1, page 259 - 274, Jan 2008.
Seungjae Han and T. Klein, "User Assignment Strategies for Throughput Maximization in Hierarchical Wireless Networks," International Journal of Wireless and Mobile Computing, Inderscience, Vol. 2, No. 4, page 337-349, Dec 2007.
Kwon, H. Cha, Seungjae Han, and R. Ha, "Empirical evaluation of receiver-based TCP delay control in CDMA2000 networks," International Journal of Communication Systems, Wiley, , Vol. 20, No. 8, page 927-941, August 2007.
Y.Bejerano, Seungjae Han, and A. Kumar, "Efficient Load Balancing Routing for Wireless Mesh Networks," Computer Networks, Elseviers , Vol. 51, No.10, page 2450 - 2466, July 2007.
Y.Bejerano, Seungjae Han, and L. Li, "Fairness and Load Balancing in Wireless LANs using Association Control," IEEE/ACM Transactions on Networking, Vol. 15, No. 3, page 560-573, June 2007.
T. Klein and Seungjae Han, "Assignment Strategies for Mobile Data Users in Hierarchical Overlay Networks: Performance of Optimal and Adaptive Strategies," IEEE Journal on Selected Areas in Communications, Vol. 22, No. 5, page 849 - 861, June 2004.
M. Buddhikot, G. Chandranmenon, Seungjae Han, Y. Lee, S. Miller, and L. Salgarelli., "Design and Implementation of a WLAN/CDMA2000 Interworking Architecture," IEEE Communications Magazine, Vol. 41, No. 11, page 90 - 100, November 2003.
Seungjae Han and K. G. Shin, "Experimental Evaluation of Behavior-based Failure-Detection Schemes in Real-time Communication Networks," IEEE Transactions on Parallel and Distributed Systems , Vol. 10, No. 6, page 613 - 626, June 1999.
K. G. Shin, T. Abdelzaher, Seungjae Han, J. Reumann, and E. Abram-Profeta., "Multimedia-Friendly Server and Communication Design," IEEE Multimedia, Vol. 6, No. 2, page 84 - 90, April 1999.
K. G. Shin and Seungjae Han, "Fast Low-cost Failure Recovery for Reliable Real-time Multimedia Communication," IEEE Network, Vol. 12, No. 6, page 56 - 63, November 1998.
Seungjae Han and K. G. Shin, "A Primary-backup Channel Approach to Dependable Real-time Communication in Multi-hop Networks," IEEE Transactions on Computers, Vol. 47, No. 1, page 46 - 61, January 1998.
Seungjae Han and K. G. Shin, "Fast Restoration of Real-time Communication Services from Component Failures in Multi-hop Networks", ACM SIGCOMM Computer Communication Review, Vol. 27, No. 4, page 77-88, October, 1997.

International Conference Papers

J. Sung, S. Han, and J. Kim. "Virtual Machine Pre-Provisioning for Computation Offloading Service in Edge Cloud." 2019 IEEE 12th International Conference on Cloud Computing (CLOUD). IEEE, 2019.
H. Choi, Seungjae Han, and Sunju Park, “Low overhead routing for IEEE 802.11-based Internet-of-Things networks”, IEEE ICENCO, Dec 2017.
J. Sung, Seungjae Han, "Data Bundling for Energy Efficient Communication of Wearable Devices", IEEE LCN 2015
J. Han, Seungjae Han, "Nonintrusive Estimation of Expected Throughput for IEEE 802.11 Devices", IEEE CCNC, Jan. 2014
S. H. Moon, Seungjae Han, Sunju Park, "Energy Efficient Flow Control and Routing for Clustered Wireless Sensor Networks", the 24th International Conference on Information Networking, IEEE ICOIN 2013, jan 2013
Y. S. Jeong, S. H. Kim and Seungjae Han, "Link Configuration and Message Forwarding for Intermittently Connected Mobile Networks", IEEE SECON 2012.
S. H. Kim and Seungjae Han, "Contour Routing for Peer-to-Peer in Cellular Networks", IEEE COMSNETS, Jan. 2012.
Y. Kim, K. Lee, S. Sim, Seungjae Han, "A Simple Myopic Mobile Sink Strategy for Wireless Sensor Networks" IEEE IPCCC, Nov. 2011
S. Choi, S. Park, D. Kang, Seungjae Han, and H. Kim, "A Microgrid Energy Management System for Inducing Optimal Demand Response", IEEE SmartGridComm, Oct. 2011.
J. Kang and Seungjae Han, "Network Selection for Heterogeneous Multi-Service Wireless Networks", IEEE LCN, Oct. 2010
Y. Bejerano, H. Chio, Seungjae Han, and T. Nandagopal, "Performance Tuning of Infrastructure-Mode Wireless LANs", IEEE WiOPT, May. 2010
S. Moon and Seungjae Han, "Benefits of Dual-radio Wireless Sensor Networks", IEEE CCNC, Jan. 2010
J. Kim, Y. Jeong, and Seungjae Han, "Experimental Analysis of Interference in Dual-Radio Wireless Sensor Networks", IEEE CCNC, Jan. 2010
Seungjae Han, T. Nandagopal, Y. Bejerano, and H. Choi, "Analysis of Spatial Unfairness in Wireless LANs", IEEE INFOCOM, April. 2009
Y. Kim, Seungjae Han, "Proxy Mobile IP extension for Mobile Multimedia Multicast Services", IEEE CCNC, Jan. 2009
S. Sim, S. Park, S. Kim, Seungjae Han, "Use of Incomplete Timestamp Records for Hospital Simulation Analysis", HICSS, Jan. 2009
Y.Bejerano, Seungjae Han, K. Lee, and A. Kumar, " Single-Path Routing for Life Time Maximization in Multi-hop Wireless Networks", IEEE LCN, Oct. 2008
H. Choi and Seungjae Han, "Load Balancing Routing for Wireless Mesh Networks: An Adaptive Partitioning Approach", IEEE CCNC, Jan. 2008
Y.Bejerano and Seungjae Han, "Cell Breathing Techniques for Load Balancing in Wireless LANs," IEEE INFOCOM, April 2006.
H. Kim, Seungjae Han, J. Song, " Maximum Lifetime Paths for the High Packet Delivery Ratio using Fast Recovery in a Mobile Ad Hoc Network", Lecture Notes in Computer Science, Springer-Verlag, vol 3992, 2006
H. Kim, Seungjae Han, J. Song, "A Routing Protocol for Throughput Enhancement and Energy Saving in Mobile Ad Hoc Networks", Lecture Notes in Computer Science, Springer-Verlag, vol 3981, 2006
Y.Bejerano, Seungjae Han, and L. Li, "Fairness and Load Balancing in Wireless LANs using Association Control," ACM MOBICOM, page 315 - 329, September 2004.
Seungjae Han and T. Klein, "Performance Analysis of Adaptive and Online Assignment Strategies for Wireless Data Users in Hierarchical Overlay Networks," IEEE GLOBECOM, December 2003.
T. Klein and Seungjae Han, "Assignment Strategies in Wireless Overlay Networks: Stability and Performance Analysis," The 37th Annual Conference on Information Sciences and Systems (CISS) , March 2003.
M. Buddhikot, G. Chandranmenon, Seungjae Han, Y. W. Lee, S. Miller, and L. Salgarelli, "Integration of 802.11 and Third-Generation Wireless Data Networks," IEEE INFOCOM, page 503 - 512, March 2003.
Seungjae Han and K. G. Shin, "Efficient Spare-resource Allocation for Fast Restoration of Real-time Channels from Network Component Failures," IEEE RTSS, page 99 - 108, December 1997
Seungjae Han and K. G. Shin, "Fast Restoration of Real-time Communication Services from Component Failures in Multi-hop Networks," ACM SIGCOMM, page 77 - 88, September 1997.
Seungjae Han and K. G. Shin, "Experimental Evaluation of Failure-detection Schemes in Real-time Communication Networks," IEEE FTCS, page 122 - 131, June 1997.
Seungjae Han, H. Rosenberg, and K. G. Shin, "DOCTOR : An Integrated Software Fault Injection Environment for Distributed Real-time Systems," IEEE Computer Performance and Dependability Symposium (IPDS) , page 204 ~ 213, April 1995.
Seungjae Han, K. G. Shin, and J. Park, "A Non-intrusive Distributed Monitoring Support in Fault Injection Experiments," IEEE Workshop on Evaluation Techniques for Dependable Systems , 1995.
Seungjae Han and K. G. Shin, "DOCTOR : An Integrated Software Fault Injection Environment," IEEE International Workshop on Integrating Error-Models with Fault Injection , 1994.

Domestic Conference Papers

김혜정, 한승재, 박용주 "실내환경에서의 자율주행차 무선전력전송을 위한 딥러닝 기반 UWB 거리 측정 연구" 한국통신학회 학술대회논문집, 22-23, June 2023.
천병준, 홍성재, 한승재 "GAN과 Few-shot learning을 활용한 실내 측위에 관한 연구" 한국통신학회 학술대회논문집, 508-509, Nov 2022.
신지호, 한승재 "심층신경망 어플리케이션을 처리하는 엣지 컴퓨팅 환경에서 강화학습을 이용한 Edge Orchestration" 한국통신학회 학술대회논문집, 642-643, Aug 2020.
박찬도, 한승재 "인공지능 학습을 통한 경쟁 윈도우 지연을 이용한 혼잡 제어" 한국통신학회 학술대회논문집, 46-47, Feb 2020.
홍성재, 이학수, 김효주, 양성준, 한승재 "CSI 와 소리 인식을 통한 실시간 헬스 모니터링". 한국통신학회 학술대회논문집, 509-510, Feb 2020.
윤동욱, 한승재 "WiFi Radar를 이용한 물체 탐지 방법" 한국통신학회 학술대회논문집, 1409-1410, June 2019.
박찬도, 한승재 "인공신경망 학습을 통한 다중 홉에서 데이터 전송 지연 알고리즘" 한국정보과학회 학술발표논문집, 368-370, June 2018.
박태휘, 한승재 "스마트 공장에서 시멘틱 센서 데이터 선택과 제조 공정 스케줄링의 융합적 해법" 한국정보과학회 학술발표논문집, 365-367, June 2018.
장영록, 한승재 "VANET환경에서 차량들의 위치 정보를 활용한 중앙집중형 스케줄링 기법" 한국정보과학회 학술발표논문집, 1202-1204 June 2017.
우송희, 김문상, 한승재 "다채널 모바일 기기 탐색 단계에서의 duty-cycling 방법 제안" 대한전자공학회 학술대회, 372-375 June 2015.
조서익, 김선현, 문수훈, 한승재 "이동 방향 정보를 이용한 DTN 라우팅 : TAILWIND" 정보과학회논문지, 42(3), 408-412, March 2015.

Patents

Seung-jae Han, Jung-han Han "Apparatus and method for access point selection" US Patent 9,572,066, February 14, 2017
Soo-hoon Moon, Keon-taek Lee, Sun-hyun Kim, Seung-jae Han "Mobile node and method for delivering data in delay tolerant network, recording medium thereof" KR Patent 10-1471276, December 3, 2014
Sun-hyun Kim, Seung-jae Han "Method for Delay Tolerant Network Routing Using Social Relation" KR Patent 10-1451040, October 7, 2014
M. Buddhikot, G. Chandranmenon , Seung-jae Han, Y. Lee, S. Miller, L. Salgarelli "Integrated Web Cache", US Patent 8,174,982, May 8, 2012
Y. Bejerano, S. Golestani, S. Han, M. Smith, "Methods and devices for associating a mobile device to access points within a WLAN", US patent 8,254,347, August 28, 2012
M. Buddhikot, G. Chandranmenon , Seung-jae Han, Y. Lee, S. Miller, L. Salgarelli "Mobility access gateway", US Patent 8,332,914, Dec. 11, 2012
Y. Bejerano, S. Han, M. Smith, "Frequency planning method for wireless LANs", US patent 8,374,131, February 12, 2013
Y. Bejerano, S. Han, "Methods and devices for balancing the load on access points in wireless local area networks", US patent 8,559,358, October 15, 2013
Y. Bejerano, Seung-jae Han, L. Li, "Fairness and load balancing in wireless LANs using association control," US Patent 7,836,181, Nov.16, 2010
Seung-jae Han, T. Klein, "User assignment strategies for hierarchical and other overlay networks", US Patent 7,586,872, Sep. 8, 2009
Seung-jae Han, T. Klein, "Method for scheduling users in a hierarchical network", US Patent 7,577,121, Aug. 18, 2009
M. Buddhikot, G. Chandranmenon , Seung-jae Han, Y. Lee, S. Miller, L. Salgarelli "Mobility access gateway", US Patent 7,562,393, Jul. 14, 2009
M. Buddhikot, G. Chandranmenon , Seung-jae Han, Y. Lee, S. Miller, L. Salgarelli "Integrated Web Cache", US Patent 7,499,401, March 3, 2009.
Y. Bejerano, J. Golestani, Seung-jae Han, M. Smith, "Methods and devices for determining the adjacency of access points in a wireless network¡±, US Patent 7,430,189, Sep. 30, 2008.

Contact us

4th Engineering building (Building No.122), D715 Mobile Networking Lab, Department of Computer Science, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul 03722, Republic of Korea

+82-2-2123-7751

M.NET

Welcome to Mobile Networking Lab.

+82-2-2123-7751 (extension: 7751)