Phone: (852) 2358-7072
Fax: (852) 2358-1485
Email: eecheng@ee.ust.hk

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Research Interests

Education

• Ph.D. (1991) Department of Electrical Engineering, Princeton University.
• Thesis title: Capacity Regions of Gaussian Multiple-access Communication Channels
• Advisor: Sergio Verdu.)
• M.A. (1988) Department of Electrical Engineering, Princeton University.
• B.S. (1987) Department of Electrical and Computer Engineering, Drexel University.

Biography

Roger S. Cheng (S'86-M'92) received the B.S. degree from Drexel University, Philadelphia, PA, in 1987, and both the M.A. and Ph.D. degrees from Princeton University, Princeton, NJ, in 1988 and 1991, respectively, all in electrical engineering.

From 1987 to 1991, he was a Research Assistant in the Department of Electrical Engineering, Princeton University, Princeton, NJ. From 1991 to 1995, he was an Assistant Professor in the Electrical and Computer Engineering Department of University of Colorado at Boulder. In June 1995, he joined the Faculty of Hong Kong University of Science and Technology, where he is currently an Assistant Professor in the Department of Electrical and Electronic Engineering. He also held visiting positions with Qualcomm, San Diego, in the summer of 1995, and with Institute for Telecommunication Sciences of NTIA, Boulder, CO, in the summers of 1993 and 1994. His current research interests include wireless communications, multiuser communications, spread spectrum CDMA, digital implementation of communication systems, wireless multimedia communications, information theory, and coding.

Dr. Cheng is the recipient of the Meitec Junior Fellowship Award from the Meitec Corporation in Japan, the George Van Ness Lothrop Fellowship from the School of Engineering and Applied Science in Princeton University, and the Research Initiation Award from the National Science Foundation. He was a member of the Technical Program Committees of GLOBECOM98 and IEEE Wireless Communications and Networking Conference (WCNC'99). He has served as Guest Editor of the special issue on Multimedia Network Radios in the IEEE JOURNAL ON SELECTED AREAS IN COMMUNICATIONS, Associate Editor of the IEEE TRANSACTION ON SIGNAL PROCESSING, and membership chair for of the IEEE Information Theory Society.
 

Recent publications

K. K. Wong, R. S. Cheng, K. B. Letaief and R. D. Murch, “Adaptive antennas at the mobile and base stations in an OFDM/TDMA system,” submitted to IEEE Transactions on Communications, 1999.
B. G. Yang, K. B. Letaief, R. S. Cheng, Zhigang Cao, “An Improved Combined Symbol and Sampling Clock Synchronization Method for OFDM Systems,” Submitted to IEEE Transactions on Communications, 1999.
C. Y. Tsui, R. S. Cheng, C. Ling, “Low Power Rake Receiver and Viterbi Decoder Design for CDMA Applications,” to appear in Wireless Personal Communications, 1999.
C. Y. Wong, R.  S. Cheng, K. B. Letaief, R. D. Murch, “Multiuser OFDM with adaptive sub-carrier, bit, and power allocation,” to appear in IEEE Journal on Selected Areas in Communications — Special Issue on Broadband Wireless Techniques, 1999.
W.-F. Liu, J. Lau, R. S. Cheng, “Considerations on Applying OFDM on a Highly Efficient PA at 1 GHz”, to appear in IEEE Tran. on Circuits and Systems II, 1999.
R. S. Cheng, "Optimal Transmit Power Management on a Fading Multiaccess Channel,'' to appear in Proc. of IEEE 1996 Information Theory Workshop, Haifa, Israel, June, 1996. (For a Postscript file, click here.)
R. S. Cheng, "Asymptotically Optimal Coding Strategy for L-out-of-K Gaussian Channel using CDMA and successive Decoding,'' Proc. of the 1995 International Symposium on Communications, Taipei, Taiwan, R.O.C., pp. 442-449, December, 1995. (For a Postscript file, click here.)
A. A. Alsugair and R. S. Cheng, "Symmetric capacity and signal design for L-out-of-K CDMA Gaussian channels," IEEE Transactions on Information Theory, vol. IT-41, pp. 1072-1082, July, 1995.
R. S. Cheng and S. Verdu, "Gaussian multiaccess channels with ISI: capacity regions and multiuser water-filling," IEEE Transactions on Information Theory, vol. IT-39, pp. 773-785, May, 1993.
R. S. Cheng and S. Verdu, "On limiting characterizations of memoryless multiuser capacity regions," IEEE Transactions on Information Theory, vol. IT-39, pp. 609-612, March, 1993.
R. S. Cheng and S. Verdu, "The effect of asynchronism on the total capacity of Gaussian Multiple-access Channels," IEEE Transactions on Information Theory, vol. IT-38, pp. 2-13, January, 1992.
R. S. Cheng and S. Verdu, "Capacity of root mean square bandlimited Gaussian multiuser channels," IEEE Transactions on Information Theory, vol. IT-37, pp. 453-465, May, 1991.
M. Kam, R. S. Cheng, "Convergence and pattern stabilization in the Boltzmann machine," Advances in Neural Information Processing Systems, 1, } pp. 402-410, San Mateo, California: Morgan Kaufmann, 1989.
M. Kam, R. S. Cheng and A. Guez, "Pattern retrieval and learning in nets of asynchronous binary threshold elements," IEEE Transactions on Circuits and Systems, vol. CAS-36, pp. 353-364, March, 1989.