Yum Tak-Shing, Peter

任 德 盛

 

Dean of Engineering Faculty   &

Professor of Information Engineering

 

Tel: (852) 2609-8386

Fax: (852) 2603-5032

Email :

Dean's message: Faculty Homepage


Biography

Professor Yum was born in Shanghai. He received primary and secondary school education in Hong Kong. He went to Columbia University and was awarded BS, MS, MPh and PhD degrees in 1974, 1975, 1977 and 1978 respectively. He joined Bell Telephone Laboratories in April 1978 working on switching and signaling systems for 2.5 years. Then, he taught at National Chiao Tung University, Taiwan for 2 years before joining The Chinese University of Hong Kong in 1982. He is now serving as Dean of Engineering.

 

Professor Yum has published widely in Internet research with contributions to routing, buffer management, deadlock handling, message resequencing and multi-access protocols. He then branched out to work on cellular network, lightwave networks, video distribution networks and 3G networks. His recently research is in the areas of RFID, sensor networks and wireless positioning technologies.

 

Professor Yum is on the editorial board of 6 international journals on Communications and Information Science, including the IEEE Transactions on Communications. He was also formerly an editor on IEEE Transactions on Multimedia. Recently, he joined the editorial boards of Acta Electronica Sinica, Chinese Journal of Electronics and China Communications. Since 2008 he also serves on the Awards Committee of IEEE Communications Society.

 

Professor Yum's diverse industrial experience includes Bell Labs, Bellcore (now Telcordia), IBM Research, Motorola Semiconductors and ITRI of Taiwan, SmarTone Communications and Radio-Television (Hong Kong) Ltd.  Since 2008 he is appointed concurrently as chair professor at the Institute for Theoretical Computer Science of Tsinghua University.  In spring 2006 he was appointed the Fulbright Hong Kong Distinguished Scholar for lecturing in US universities.  In spring 2008 he was appointed Distinguished Visiting Fellow of the Royal Academy of Engineering (UK) for lecturing in UK universities.

 

Professor Yum is the founding director of the Information Engineering program and later served as the chairman of the Information Engineering Department. Together with Professor Michael Chang, he founded the Hong Kong SchoolNet in 1993 to provide Internet service to selected secondary schools in Hong Kong. Hong Kong SchoolNet was evolved to Hong Kong Education City www.hkedcity.net serving all primary and secondary schools in Hong Kong under the able leadership of Professor P.C. Wong and funding from the Hong Kong SAR Government.

 

Professor Yum likes reading. He plays tennis and badminton regularly. He is the sponsor of the annual youth bridge camp organized by Bridge House. He is also the Honorary Captain of the Chinese University Badminton Team. He is affiliate with the Shaw College and has been Fellow and Trustee member of the college for many years.

 




Research Interests
  • Wireless and Internet
Subject Taught

  • Wireless Communications
  • Probability Models
  • Performance Evaluation Methodology
  • Technology and Human Value
Recent Projects

  • Fair Routing and Bandwidth Allocation for Packet Rings
  • OVSF Code Assignment for UTRA
  • Peer to Peer Networking Solutions
  • Joint Congestion Control for TCP/IP Networks
  • Architecture for IP over WDM
  • Direction of Arrival Estimation
Representative Publications

A) Computer Networks:

  • T.S. Yum, "The Design and Analysis of a Semi-dynamic Deterministic Routing Rule," IEEE Trans. on Commun., pp. 498-504, April 1981
  • T.S. Yum and M. Schwartz, "The Join-Biased-Queue Rule and its Application to Routing in Computer Communication Networks," IEEE Trans. on Communications, pp. 505-511, April 1981
  • J.C. Leou and T.S. Yum, "Analysis and Comparison of Buffer Sharing Strategies in a Message Switched Computer Network Node," Proceedings of the National Science Council, Republic of China, Part A: Applied Science, Vol.7, No.1, pp. 42-51, January 1983.
  • T.S. Yum and et al, "Dynamic Scheduling Multiple Access Protocol: Design & Analysis," National Science Council Monthly, Republic of China, Vol.XI, No.6, pp. 508-520, June 1983. (in Chinese)
  • T.S. Yum and C. Dou, "Buffer Allocation Strategies with Blocking Requirements," Performance Evaluation Vol.4, pp. 285-295, North-Holland, 1984.
  • T.S. Yum and T.Y. Ngai, "Resequencing of Messages in Communication Networks," IEEE Trans. Commun. Vol. COM-34, pp. 143-149, Feb. 1986.
  • C.W. Chan and T.S. Yum, "An Algorithm for Detecting and Resolving Store-and-Forward Deadlocks in Packet-Switched Networks," IEEE Trans. Commun. Vol. COM-35, pp. 801-807, Aug. 1987.
  • P.C. Wong and T.S. Yum, "The Contention-Based Look-Ahead Reservation Protocol for Multichannel Local Area Networks," IEEE Transaction on Communications, pp. 234-238, Feb. 1988.
  • P.C. Wong and T.S. Yum, "An Integrated Services Token-Controlled Ring Network," IEEE Journal on Selected Areas in Communications, pp. 670-679, June 1989.
  • Y.W. Leung and T.S. Yum, "Efficient Algorithms for Multiple Destination Routing," Intl. J. Digital and Analog Commun. Systems, Vol. 6, pp. 87-95, 1993.
  • T.S. Yum and Monsong Chen, "Multicast Source Routing in Packet Switched Networks," IEEE Trans. Commun., Vol. 42, No. 2/3/4, pp. 1212-1215, Feb./March/April 1994.
  • P.C. Wong and T.S. Yum, "Design and Analysis of a Pipeline Ring," IEEE Trans. Commun., Vol. 42, No. 2/3/4, pp. 1153-1161, Feb./March/April 1994.
  • Eric Wong and T.S. Yum, "The Optimal Multi-copy Aloha," IEEE Trans. Auto. Control, July 1994.
  • Y.W. Leung and T.S. Yum, "A TDM-Based Multibus Packet Switch," IEEE Trans. Commun.,July,1997.
  • Xinyan Zhang, Qian Zhang, Bo Li, Wenwu Zhu and Tak-Shing Peter Yum, "MultiServ: A Service-Oriented Framework for Multihop Wireless Networks," IEEE Journal on Selected Areas in Communications, pp. 1146-1157, Vol. 23, No. 6, June 2005
  • Cunqing Hua, Tak-Shing Peter Yum and Cheng Li, "Optimal Bandwidth Assignment for Packet Rings," Journal of Communications and Networks, Vol. 9, No. 4, December 2007
  • C.Q Hua and T.S.P. Yum, "Optimal Routing and Data Aggregation for Maximizing Lifetime of Wireless Sensor Networks", IEEE/ACM Trans. on Network, August 2008, Vol.16,No.4.

 

B) Video Distribution and Video Conferencing

  • T.S. Yum, "Hierarchical Distribution of Video with Dynamic Port Allocation," IEEE Transactions on Communications, pp. 1268-1274, August 1991.
  • T.S. Yum and M. Chen, "Dynamic Channel Assignment in Integrated Services Cable Networks," IEEE Trans. Commun., Vol. 42, No. 2/3/4, pp. 2023-2027, Feb./March/April 1994.
  • T.S. Yum, Monsong Chen and Y.W. Leung, "Video Bandwidth Allocation for Multimedia Teleconferences," IEEE Trans. Commun., Feb. 1995.
  • Y.W. Leung and T.S. Yum, "A Modular Multirate Video Switch --- Design and Dimensioning," IEEE/ACM Transactions on Networking, pp. 549-557, Dec. 1994.
  • Y.W. Leung and T.S. Yum, "Connection Optimization for Two Types of Videoconferences," IEE Proc.-Commun., vol. 143, pp. 133-140. June 1996.
  • T.K. Chan and T.S. Yum, "Analysis of Multipoint Videoconferencing under Reroutable Route-Configuration Assignment," International Journal of Intelligent Systems, vol. 13, no. 12, pp. 1201-1219, Dec. 1998.
  • G. Feng and T. S. Yum, "Multiparty Videoconferencing on Multi-Drop VP-based SONET/ATM Rings: Performance Analysis," IEE Proc. Commun., vol. 145, no. 6, pp. 389-394, Dec. 1998
  • G. Feng and T.S. Yum, "Traffic Analysis for Multiparty Videoconferencing in Virtual Path Based ATM Networks," Int. Journal of Comm. Sys., vol. 13, Issue 1, 2000.
  • G. Feng and T.S. Yum, "Bifurcated-M Routing for multipoint videoconferencing," Computer Communications, vol. 23, pp. 362-370, 2000.
  • Gang Feng, Chee Kheong Siew and Tak-Shing Peter Yum, "Architecture Design and Bandwidth Demand Analysis for Multiparty Videoconferencing on SONET/ATM Rings," IEEE Journal on Selected Areas in Communications, vol. 20, No. 8, pp. 1580-1588, Oct. 2002.

 

C) Wireless Communications

  • K.W. Hung and T.S. Yum, "Slotted Aloha for Multihop Packet Radio Networks with Multiple Directional Antenna Stations", Electronics Letters, vol. 22, No. 19, pp. 1027-1029, Sept. 1986.
  • M. Zhang and T.S. Yum, "Comparisons of Channel Assignment Strategies in Cellular Mobile Telephone Strategies," IEEE Trans. Vehicular Technologies, 211-215, Nov. 1989.
  • M. Zhang and T.S. Yum, "The Non-Uniform Compact Pattern Channel Allocation Algorithm for Cellular Mobile Systems," IEEE Trans. Vehicular Technology, pp. 387-391, May 1991.
  • T.S. Yum and K.W. Hung, "Design Algorithms for Multihop Packet Radio Networks with Multiple Directional Antenna Stations," IEEE Trans. Commun., pp. 1716-1724, Nov. 1992.
  • K.W. Hung and T.S. Yum, "Efficient Spreading Code Assignment Algorithm for Packet Radio Networks," Electronics Letters, pp. 2193-2195, Nov. 1992.
  • T.S. Yum and Wing S. Wong, "Hot-spot Traffic Relief in Cellular Systems," IEEE Journal on Selected Areas in Communications, special issue in Wireless Personal Communications, pp. 934-940, July 1993.
  • K.W. Hung and T.S. Yum, "The Coded Tone Sense Protocol for Multihop Spread Spectrum Packet Radio Networks," IEICE Transactions on Communications, pp. 51-55, Jan. 1994.
  • K.W. Hung and T.S. Yum, "Staggered Multicast Protocol with Collision Free Acknowledgement in Multihop Spread Spectrum Packet Radio Networks," Intl. Journal of Communication Systems, Vol. 7, No. 1, pp. 39-47, Jan.-March 1994.
  • K. Yeung and T.S. Yum, "Cell Group Decoupling Analysis of a Channel Borrowing Based Dynamic Channel Assignment Strategy in Linear Radio Systems," IEEE Trans. Commun., April 1995.
  • K. Yeung and T.S. Yum, "Compact Pattern Based Dynamic Channel Assignment for Cellular Mobile Systems," IEEE Trans. Veh. Tech., Nov. 1994.
  • T.S. Yum and K. Yeung, "Blocking and Handoff Performance Analysis of Directed Retry in Cellular Mobile Systems," IEEE Trans. Veh. Tech., vol. 44, pp. 645-650, August 1995.
  • T.S. Yum and K. Yeung, "A new Quality of Service Measure for Cellular Radio Systems", IEEE Trans. Veh. Tech. vol. 46, no. 3, pp. 610-614, Aug. 1997.
  • K. Yeung and T.S. Yum, "Phantom Cell Analysis of Dynamic Channel Assignment in Cellular Mobile Systems," IEEE Trans. Veh. Tech., pp. 190-195, Feb. 1998
  • T.S. Yum and Hongbing Zhang, "Analysis of a Dynamic Reservation Protocol for Interactive Data Services on TDMA-Based Wireless Networks," IEEE Trans. Commun. Vol. 47, no. 12, pp. 1796-1801, Dec. 1999.
  • Hongbing Zhang and T.S. Yum,"A Dynamic Reservation Protocol for Prioritized Multirate Data Services on DECT Air Interface," IEEE Trans. Veh. Tech. Vol 49, No. 2, March 2000
  • Kwan L. Yeung and Tak-Shing P. Yum, "Fixed Channel Assignment Optimization for Cellular Mobile Networks," IEICE Trans. on Commun., Vol. E83-B, No. 8, pp. 1783-1791, Aug. 2000.
  • Kwan L. Yeung and Tak-Shing P. Yum, "Performance Analysis of Borrowing with Directional Carrier Locking Strategy in Cellular Radio Systems," IEICE Trans. on Commun., Vol. E83-B, No. 10, Oct. 2000.
  • Yang Yang and Tak-Shing Peter Yum,.Maximally Flexible Assignment of Orthogonal Variable Spreading Factor Codes for Multirate Traffic," IEEE Trans. on Wireless Commun., Vol. 3, No. 3, May 2004
  • Yang Yang and Tak-Shing Peter Yum, .Analysis of random access channel in UTRA-TDD on AWGN channel., International Journal of Communication Systems,Vol. 17, No. 3, April 2004.
  • Z. Shan and T. S. P. Yum, "A Conjugate Augmented Approach to Direction-of-Arrival Estimation," IEEE Transactions on Signal Processing, vol. 53, No. 11, Nov, 2005
  • Yang Yang and Tak-Shing Peter Yum,.Analysis of Power Ramping Schemes for UTRA-FDD Random Access Channel," IEEE Transactions on Wireless Communications, Vol. 4, No. 6, November 2005
  • Shan, Z.; Yum, T.-S.P, "*A conjugate augmented approach to direction-of-arrival estimation"*, IEEE Transactions on Signal Processing, Volume 53, Issue 11, Nov. 2005
  • Y. Yang and T. S. P. Yum, .Multicode Multirate Compact Assignment of OVSF Codes for QoS Differentiated Terminals,. IEEE Transactions on Vehicular Technology, vol. 54, no. 6, pp. 2114~2124, Nov. 2005.
  • X.R. Zhu, L.F. Shen and Tak Shing Peter Yum, "Analysis of Cognitive Radio Spectrum Access with Optimal Channel Reservation," IEEE Communications Technology Letter, vol. 11, No. 4, April, 2007
  • C. Hua and T.S. Yum, "Optimal Routing and Data Aggregation for Maximizing Lifetime of Wireless Sensor Networks," to appear in IEEE/ACM Transactions on Networking, 2007
  • C. Hua and T.S. Yum, "Data Aggregated Maximum Lifetime Routing for Wireless Sensor Networks," Journal of Ad Hoc Networks, Feb 2007
  • C. Hua and Tak Shing Peter Yum, "Asynchronous Random Sleeping for Sensor Networks," ACM Trans. on Sensor Networks, vol.3, no. 3, article 15, August 2007.

 

D) Optical Networks

  • M. Chen and T.S. Yum, "Buffer Sharing in Conflict-Free WDMA Networks," IEICE Trans. in Commun., pp. 1144-1151, Sept. 1994.
  • Philip To, T.S. Yum and Y.W. Leung, "Multi-Star Implementation of Expandable ShuffleNets," IEEE/ACM Transactions on Networking, pp. 345-351, Aug. 1994.
  • K. Yeung and T.S. Yum. "Node Placement Optimization for ShuffleNets," IEEE Trans. Networking, pp. 319-324, June 1998.
  • C.M. Lee, C.C. Hui, F. Tong, T.S. Yum, "Network Dimensioning in WDM-Based all optical Networks," Photonic Network Communications, Kluwer Press, 2000.
  • Frank Tong, Tak-Shing Yum, and Chi-Chun Hui, "Supervisory Management and Lightpath Restoration for Wavelength Routing Networks," Journal of Lightwave Technology, Vol 18, No 9, Sep. 2000.
  • T.S. Yum, F. Tong and K. T. Tan, "An Architecture for IP over WDM using Time-Division Switching," IEEE Journal of Lightwave Technology, vol. 19, No. 5, pp. 589-595, May 2001.

 

E) Satellite Networks

  • T.S. Yum and Eric Wong, "The Scheduled-Retransmission Multi-access Protocol for Packet Satellite Communication," IEEE Trans. Information Theory, pp. 1319-1324, Nov. 1989 .
  • Eric Wong and T.S. Yum, "A Controlled Multi-access Protocol for Packet Satellite Communications," IEEE Trans. Commun., pp. 1133-1140, July 1991.
  • M.K. Lo and T.S. Yum, "The Tone Sense Multi-access Protocol with Partial Collision Detection (TSMA/PCD) for Packet Satellite Communications," IEEE Trans. Commun., pp. 820-824, June 1993.
  • Eric Wong and T.S. Yum, "In Search of the Minimum Delay Protocol for Packet Satellite Communications," IEICE Trans. on Commun., pp. 508-517, May 1993.
  • Eric Wong and T.S. Yum, "Delay Bounds for Packet Satellite Protocols", Telecommunication Systems, vol. 7, no. 5, 1997

 

F) Queuing Theory

  • T.S. Yum, "Measuring the Utilization of Synchronous Data Links: An Application of Busy Period Analysis," Bell System Technical Journal, Vol.59, No.5, pp. 731-744, May- June 1980.
  • T.S. Yum and H.C. Lin, "Adaptive Load Balancing for Parallel Queues with Traffic Constraints," IEEE Trans. Commun. Vol.COM-32, pp. 1339-1342, December 1984.

 

G) Routing

  • K.M. Chan and T.S. Yum, "The Maximum Mean Time to Blocking Routing in Circuit Switched Networks," IEEE Journal on Selected Areas of Communications, Vol. 12, No.2, pp. 313-321, Feb. 1994.
  • Eric Wong, T.S. Yum and K.M. Chan, "Analysis of the M and M2 Routing in Circuit-Switched Networks," European Transactions on Telecommunications, vol. 6, No. 5, pp.613-620, 1995
  • K.M. Chan and T.S. Yum, "Analysis of Adaptive Routing in Multi-rate Loss Networks," Telecommunication Systems, vol. 5 pp. 341-359, 1996.
  • G. Feng and T.S. Yum, "Efficient Multicast Routing with Delay Constraints," International Journal of Communication Systems, vol. 12, pp. 181-195, 1999.
  • Eric Wong, Andy Chan and T. S. Yum, "A Taxonomy of Rerouting in Circuit-Switched Networks," IEEE Communications Mag., pp. 116-122, Nov. 1999.
  • Eric W.M.Wong,Andy K.M.Chan, and Tak-Shing Peter Yum,"Analysis of Rerouting in Circuit-Switched Networks," IEEE/ACM Tran. Networking, Vol 8, No. 3 June, 2000

 

H) Disk Array

  • K.H. Yeung and T.S. Yum, "Selective Broadcast Data Distribution Systems", IEEE Trans. Computers, January 1997, pp. 100-104.
  • K.H. Yeung and T.S. Yum, "Dynamic Parity logging disk arrays for engineering database systems," IEE Proceedings on Computers and Digital Techniques, Vol. 144, No.5, September 1997, pp. 255-260.
  • K.H. Yeung and T.S. Yum, "Dynamic Multiple Parity (DMP) Disk Array for Serial Transaction Processing," IEEE Trans. Computer, 2001.
Recent Conference Papers

  • X.R. Zhu, L.F. Shen and T.S.P. Yum, "Analysis of Cognitive Radio Spectrum Access with Optimal Channel Reservation,", IEEE Communications Letters, April 2007, Vol.11,No.4.
  • Z.L. Shan and T.S.P. Yum, "Precise Localization with Smart Antennas in Ad-Hoc Networks," IEEE 2007
  • X.A. Yang and T.S.P. Yum, "Minimal Waiting Time Assignment of Subcarriers and Power for OFDMA System," IEEE 2007
  • X.R. Zhu, L.F. Shen and T.S.P. Yum, "Hausdorff Clustering and Minimum Energy Routing for Wireless Sensor Networks," IEEE 2007
  • K.W. Chiang, C.Q. Hua and T.S.P. Yum, "Prefix-Randomized Query-Tree Protocol for RFID Systems*," IEEE ICC 2006 proceedings
  • K.W. Chiang, C.Q. Hua and T.S.P. Yum, "Prefix-Length Adaptation for PRQT Protocol in RFID Systems," IEEE GLOBECOM 2006 proceedings