Kin K. Leung

Welcome to Kin K. Leung's Home Page

Professor Kin K. Leung
Electrical and Electronic Engineering
and Computing Departments
Imperial College
Exhibition Road
London SW7 2BT
United Kingdom

Phone: +44-207-594-6238
Fax: +44-207-594-6328
Call within the U.K.: 0207-594-6238 (office) 0207-594-6328 (fax)
(please alert me by phone/email when sending me fax)
Email: kin.leung@imperial.ac.uk (or kkleung@ieee.org)

Click here for travel directions to my office and here for hotel information

Courses Taught:
Probability and Stochastic Processes (Spring, Autumn 2005, and Autumn 2006)
Architectures for Communications and Signal Processing: IEEE 802.11 and 802.16 (Spring 2006)

Professional Experience

Electrical and Electronic Engineering, and Computing Depts, Imperial College
Tanaka Chair Professor in Internet Technology (2004-now)
Wireless Technology Research Dept, Bell Labs, Lucent Technologies
Distinguished Member of Technical Staff (2002-2004)
Broadband Wireless Systems Research Dept, AT&T Labs
Technology Consultant (1997-2002)
Distinguished Member of Technical Staff (1996)
Teletraffic Theory & System Performance Dept, AT&T Bell Laboratories
Distinguished Member of Technical Staff (1994-96)
Member of Technical Staff (1986-94)

Education

Ph.D. in computer science, Univ. of California, Los Angeles, 1985
M.S. in computer science, Univ. of California, Los Angeles, 1982
B.S. in electronics, The Chinese Univ. of Hong Kong, Hong Kong, 1980

Major Honors and Awards

Royal Society Wolfson Research Merit Award, 2004-2009
IEEE Fellow for contributions to "Performance analysis, protocol design and control algorithms for communications networks," 2001
Lanchester Prize Honorable Mention Award, 1997
Bell Labs Distinguished Member of Technical Staff Award, 1994

Journal Editor

IEEE Trans. on Communications (1997-now)
IEEE Trans. on Wireless Communications (2001-now)
Journal of Sensor Networks (2005-now)
IEEE Journal on Selected Areas in Communications: Wireless Series (1999-2001)
Guest editor: IEEE Wireless Communications, 2007
Guest editor: Journal of Wireless Communications and Mobile Computing, 2005
Guest editor: Journal on Special Topics in Mobile Networking and Application (MONET), 2003
Guest editor: IEEE Journal on Selected Areas in Communications, 1997

Current Research Interests

Wireless communications: resource allocation, power control, spread spectrum, MIMO/beamforming antennas, link adaptation, MAC, wireless TCP/IP, QoS, network protocols, and sensor, ad-hoc and mesh networks
Wireless technologies: GSM, EDGE, 3G and 4G cellular networks, and IEEE 802.11, 802.16 and 802.15 networks
Communication networks: TCP/IP, mobility management, network architecture, real-time applications, network control protocols, traffic modeling
Stochastic modeling and queueing theory

Funded Research Projects

MEMBRANE: Multi-hop wireless backhaul networks using advanced MIMO and networking techniques
PULSERS: Cross-layer protocol optimization for wireless ad-hoc networks using ultra-wide band (UWB) technique
MESSAGE (formerly PMESG): Use wireless sensors mounted on vehicles to sense pollution. Collaboration with Civil Engineering at Imperial College
WINES: Wireless sensor networks for monitoring of tunnels, bridges and water systems. Collaboration with Civil Engineering at Imperial College and Cambridge University
IBM/ITA: Study theoretical foundation of designs and protocols for wireless ad-hoc and sensor networks. Funded by U.S. Army and U.K. MoD. Collaboration with Univ. of Massachusetts, Univ. of California at Los Angeles and IBM Research

U.S. Granted Patents

Conference Activities

A Word for Prospective Students

Selected Recent Papers

Wireless Sensor, Ad-Hoc and Mesh Networks:

"A Novel Distributed Scheduling Algorithm for Mesh Networks," coauthored by Y. Hou, accepted for presentation at IEEE Globecom, November 2007. (Email Kin for a pre-print.)

"Cooperative Orthogonal MIMO-Relaying for UWB Ad Hoc Networks," coauthored by S. Zhu, accepted for presentation at IEEE Globecom, November 2007. (Email Kin for a pre-print.)

"Node Connectivity in Vehicular Ad Hoc Networks with Structured Mobility,”coauthored by I.W. Ho, J.W. Polak and R. Mangharam, accepted for presentation at the IEEE Local Computer Network Workshop on User Mobility and Vehicular Networks, Oct. 2007. (Email Kin for a pre-print.)

"A Framework of Opportunistic Allocation of Radio Resources," coauthored by Y. Hou, presented at IEEE PacRim Conference, B.C. Canada, August 2007.

"Distributed Cooperative Data Transfer for UWB Ad Hoc Networks," coauthored by S. Zhu and A.G. Constantinides, Proceedings of IEEE PIMRC 2007, Athens, Greece, September 2007.

"Distributed Cooperative Routing for UWB Ad-Hoc Networks," coauthored with S. Zhu, Proceedings of IEEE ICC 2007, Scotland, U.K., June 2007.

"Self-organized, Scalable GPS-Free Location of Wireless Sensors," coauthored with A. Magnani, Proceedings of IEEE WCNC 2007, Hong Kong, China, March 2007.

Data Synchronization in Networked Systems:
"Data Synchronization Methods Based on ShuffleNet and Hypercube for Networked Information Systems," coauthored with D. Houck and P. Winkler, Proc. of IEEE Infocom 2006, Spain, April 2006.

Wireless and Mobile IP Networking:
"New Insights into TCP Performance in 3G (UMTS) Mobile Data Networks," coauthored with S. Lewis, accepted for presentation at the 13th European Wireless (EW2007) Conference, Paris, France, April 2007. (Email Kin for a pre-print.)

"A PHY/MAC Approach to Wireless Routing," coauthored with C. Akcaba and R.U. Nabar, presented at IEEE ICC 2006, Istanbul, Turkey, June 2006.

"Distributed Paging and Registration in Wireless Networks," coauthored with T.E. Klein, et. al., IEEE Network, Sept/Oct 2005, pp. 19-25.

"Architecture, Mobility Management and Quality of Service for Integrated 3G and WLAN Networks," coauthored with Y. Xiao and Y. Pan, Wireless Communications and Mobile Computing, Vol. 5, 2005, pp. 805-823.

"Distributed Radio Link Control Protocol in All-IP Cellular Network," coauthored with S. Das, T.E. Klein, H. Zheng, et. al., Proc. of IEEE Veh. Tech. Conference, Dallas, TX, September 2005.

"Enhanced Scheduling Algorithms for Improved TCP Performance in Wireless IP Networks," coauthored with T.E. Klein and H. Zheng, Proc. of IEEE Globecom 2004, Dallas, TX, Nov. 2004, pp. 2744-2748.

"Avoiding TCP Timeouts in Wireless Networks by Delay Injection," coauthored with T.E. Klein, R. Parkinson and L.G. Samuel, Proc. of IEEE Globecom 2004, Dallas, TX, Nov. 2004, pp. 2754-2759.

"Methods to Improve TCP Throughput in Wireless Networks with High Delay Variability," coauthored with T.E. Klein, C.F. Mooney and M. Haner, Proc. of IEEE Veh. Tech. Conf., Los Angeles, CA, Sept. 2004, pp. 3015-3019.

"Seamless Mobility Management Based on Proxy Servers," coauthored with Z. Jiang, B.J. Kim and P.S. Henry, Proc. of IEEE WCNC 2002, Orlando, FL, April 2002, pp. 563-568.

"Link-Condition-Based Proxies for QoS Management in Wireless Networks," coauthored with Z. Jiang, Proc. of IEEE PIMRC 2001, San Diego, CA, Sept. 2001, pp. 61-67.

"Incorporating Proxy Services into Wide Area Cellular IP Networks" coauthored with Z. Jiang et. al., Journal of Wireless Communications and Mobile Computing, Vol. 1, No. 3, July-Sept 2001, pp. 299-312; an early verion in Proc. IEEE WCNC 2000, Chicago, IL, Sept. 2000, pp. 246-252.

IEEE 802 Networks:
"Outdoor IEEE 802.11 Cellular Networks: Radio and MAC Design and Performance," coauthored with M.V. Clark, B. McNair, et. al., to appear in IEEE Trans. on Vehicular Technology, 2007.

"A Dynamic Radio Resource Management Technique for Multiple APs in WLANs," coauthored with M. Yu and H. Luo, IEEE Trans. on Wireless Communications, Vol. 5, No. 7, July 2006, pp. 1910-1919.

"On Optimizing Backoff Counter Reservation and Classifying Stations for the IEEE 802.11 Distributed Wireless LANs," coauthored with Y. Xiao, F.H. Li, K. Wu and Q. Ni, IEEE Trans. on Parallel and Distributed Systems, Vol. 17, No.7, July 2006, pp. 713-722; earlier version presented at Proc. of Networking 2005, May 2005, Ontario, Canada

"Adaptive Channel Allocation for IEEE 802.11 Wireless LANs," coauthored with Y. Zhao, presented at the 12th European Wireless 2006 (EW2006) conference, Athens, Greece, April 2006

"Protocol and Control Mechanisms to Save Terminal Engergy in IEEE 802.16 Networks," coauthored with S. Mukherjee and G.E. Rittenhouse, Proc. of IEEE Pacific Rim Conference on Communications, Computers and Signal Processing (PACRIM'05), Victoria, Canada, August 2005, pp. 5-8.

"Mobility Support for IEEE 802.16d Wireless Networks," coauthored with S. Mukherjee and G.E. Rittenhouse, Proc. of IEEE WCNC 2005, New Orleans, LA, March 2005, pp. 1446-1452.

"Frequency Assignment for IEEE 802.11 Networks," coauthored with B.J. Kim, Proc. of IEEE Veh. Tech. Conf., Oct. 2003, pp. 1422-1426.

"Multireat 802.11a Networks: Data Rate and MAC Fragmentation Adaptation," coauthored with H. Yin et. al., Proc. of Conference on Information Sciences and Systems, Princeton, NJ, March 2002.

"Multireat 802.11a Networks: System Performance Evaluation," coauthored with H. Yin et. al., Proc. of Conference on Information Sciences and Systems, Princeton, NJ, March 2002.

"Outdoor IEEE 802.11 Cellular Networks: MAC Protocol Design and Performance," coauthored with B. McNair, L.J. Cimini and J.H. Winters, Proc. of IEEE ICC 2002, New York, April 2002, pp. 595-599.

"Outdoor IEEE 802.11 Cellular Networks: Radio Link Performance," coauthored with M.V. Clark, B. McNair and Z. Kostic, Proc. of IEEE ICC 2002, New York, April 2002, pp. 512-516.

Power Control and Link Adaptation:
"Interference Estimation in Presence of Noise for Broadband Wireless Packet Networks," coauthored with J.H. Winters and L.J. Cimini, submitted to IEEE Trans. on Communications; early results presented at IEEE VTC, Atlantic City, NJ, Oct. 2001.

"Link Adaptation and Power Control for Streaming Services in EGPRS Wireless Networks," coauthored with P.F. Driessen et al., IEEE JSAC, Vol.19, No.10, Oct 2001, pp. 2029-2039; early results in IEEE MMT 2000, Dec. 2000, pp. 207-218.

"Power Control for Packet Voice Service With Application to EDGE Wireless System," coauthored with J.C. Chuang et al., International Journal of Wireless Information Networks, Vol. 11, No. 1, January 2004, pp. 29-39; early results in "Power Control for Wireless Packet Voice with Application to EDGE System" Proc. IEEE Globecom 2000, San Francisco, Nov. 2000, pp. 213-219.

"Power Control by Kalman Filter With Error Margin for Wireless IP Networks," Proc. IEEE WCNC 2000, Chicago, Sept. 2000, pp. 980-985.

"Integrated Link Adaptation and Power Control to Improve Error and Throughput Performance in Broadband Wireless Packet Networks," coauthored with L.C. Wang, IEEE Trans. on Wireless Communications, Vol. 1, No. 4, Oct. 2002, pp. 619-629; portions of results in "Integrated Link Adaptation and Power Control for Wireless IP Networks," Proc. IEEE VTC2000, Tokyo, Japan, May 2000, pp. 2086-2092.

"Controlling QoS by Integrated Power Control and Link Adaptation in Broadband Wireless Networks," coauthored with L.C. Wang, European Trans. on Telecommunications, No. 4, July/August 2000, pp. 383-394; portions of results in Proc. IEEE PIMRC'99, Osaka, Japan, Sept. 1999, pp. 1174-1180.

"Power Control by Interference Predictions for Wireless Packet Networks," IEEE Trans. on Wireless Communications, Vol. 1, No. 2, April 2002, pp. 256-265; early results in "A Kalman-Filter Method for Power Control in Broadband Wireless Networks," Proc. of IEEE INFOCOM'99, New York, NY, March 1999, pp. 948-956.

Cellular Engineering:
"A High-Capacity Wireless Network by Quad-Sector Cell and Interleaved Channel Assignment," coauthored with L.C. Wang, IEEE Journal on Selected Areas in Communications, Vol. 18, March 2000, pp. 472-480.

Radio Resource Allocation and MAC Protocol:
"A New Digital Sense Multiple Access (DSMA) Protocol for High-Speed Wireless Networks," coauthored with J. Ho and H. Chien, International Journal of Wireless Information Networks, Vol. 6, No. 1, Jan. 1999, pp. 6-22; presented at IEEE PIMRC'98, Boston, Oct. 1998.

"Dynamic Resource Allocation for Broadband Services in Fixed Wireless Networks," coauthored with A. Srivastava, IEEE Journal on Selected Areas in Communications, Vol. 17, No. 5, May 1999, pp. 990-1006.

"Radio Resource Allocation in Fixed Broadband Wireless Networks," coauthored with T.K. Fong, P.S. Henry, X. Qiu and N.K. Shankaranarayanan, IEEE Trans. on Communications, Vol. 46, No. 6, June 1998, pp. 806-818.

"Sector-Based Resource Allocation for Fixed Broadband Wireless Networks," coauthored with A. Srivastava and N.K. Shankaranarayanan, Proc. of IEEE VTC'98, Ottawa, Canada, May 1998, pp. 1680-1684.

Mobility Management and Traffic Models:
"Teletraffic Engineering for Mobile Personal Communications -- Meeting the Needs of ITU-T," coauthored with D. Grillo, R.A. Skoog and S. Chia, IEEE Personal Communications, Dec. 1998, pp. 38-58.

"Load-Dependent Service Queues With Application to Congestion Control in Broadband Networks," Performance Evaluation, Vol. 50, Issue 1, pp. 27-40, Oct 2002; also in Proc. of IEEE Globecom'97, Phoenix, AZ, Nov. 1997, pp. 1674-1679.

"Global Mobility Management by Replicated Databases in Personal Communication Networks," coauthored with Y. Levy, IEEE Journal on Selected Areas in Communications, Vol.15, No.8, Oct. 1997, pp. 1582-1596.

"An Efficient Approach to Updating Replicated Databases in Wireless and Advanced Intelligent Networks," IEEE Trans. on Computers, a special issue on mobile computing, Vol.46, No.3, March 1997, pp. 362-367.