People > Faculty
Hui Liu
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Hui Liu Associate Professor Communications and Signal Processing 307P EE/CSE Box 352500 University of Washington Seattle, WA 98195 |
| Phone: (206) 543-2054 E-mail: hliu@ee.washington.edu |
University of Texas at Austin, 1995 Ph.D. EE
Portland State University, 1992 M.S. EE
Fudan University, Shanghai, China, 1988 B.S. EE
Biosketch
Hui Liu received a B.S. in 1988 from Fudan University, Shanghai, China, an M.S. in 1992 from Portland State University, Portland, Oregon, and a Ph.D. degree in 1995 from the University of Texas at Austin, all in electrical engineering. He held the position of assistant professor at the Department of Electrical Engineering at University of Virginia from September 1995 to July 1998. Dr. Liu was the chief scientist at Cwill Telecom, Inc., and was one of the principal developers of the TD-SCDMA technologies. He founded Broadstorm Inc. in 2000 and pioneered the development of OFDMA-based mobile broadband access solution (mobile WiMAX). Dr. Liu is currently an associate professor at the Department of Electrical Engineering, University of Washington, Seattle. His research interests include broadband wireless networks, array signal processing, DSP and VLSI applications, and multimedia signal processing.
Dr. Liu has published more than 40 journal articles and has sixteen awarded or pending patents. He is the author of "OFDM-Based Broadband Wireless Networks - Design and Optimization," Wiley 2005, and "Signal Processing Applications in CDMA Communications," Artech House, 2000. Dr. Liu's activities for the IEEE Communications Society include membership on several technical committees and serving as an editor for the IEEE Transactions in Communications. He is the General Chairman for the 2005 Asilomar conference on Signals, Systems, and Computers. He is a recipient of 1997 National Science Foundation (NSF) CAREER Award, The Best Patent Award in China, and 2000 Office of Naval Research (ONR) Young Investigator Award.
Honors
- IEEE Senior Member
- ONR Young Investigator Award 2000
- NSF Early Faculty CAREER Award 1997
- Gold Prize Patent Award in China (on smart antenna SCDMA)
- Author of most cited paper in IEEE Trans. on Signal Processing (#6 out of top 100 papers from1993-2003)
- Best Paper Award, 13th International Conference on Field Programmable Logic and Applications, 2003
- Best student paper award by Ph.D. student Guoqing li in 38th Asilomar Conf. on Signals, Systems, and Computers
- Best Paper Award Nomination, IEEE Signal Processing, Statistical Signal and Array Processing Society, 1997
Research Interests
Broadband wireless networks, DSP and VLSI for communications, and multimedia signal processing.
Wireless Information Technology Lab: http://danube.ee.washington.edu/
Current Projects:
OFDMA-based broadband mobile networks
Structured dirty paper precoder
Multi-rate, multi-length LDPC codes
WiMAX system-on-a-chip
Selected Publications
Lei Yang, Hui Liu, and Richard Shi, "Construction and VLSI implementation of capacity-approaching low-error-floor multi-rate LDPC codes," IEEE Trans. Circuits and Systems, to appear.
Guoqing Li and Hui Liu, "On the optimality of OFDMA networks," IEEE Communications Letters, to appear.
Manyuan Shen, Guoqing Li, and H. Liu, "Effect of Traffic Channel Configuration on OFDMA Uplink Performance," IEEE Trans. Wireless Communications, 2006.
G. Xing, M. Shen, and H. Liu, "Frequency offset and I/Q imbalance compensation for direct-conversion receivers," IEEE Trans. Wireless Commun., vol. 4, no. 2, pp. 673-680, March 2005
Didem Kivanc, Guoqing Li, and Hui Liu, "Computationally efficient bandwidth allocation and power control for an OFDMA system," IEEE Journal on Selected Areas in Communications, pp 1150-1158, November 2003.
B. Suard, G. Xu, H. Liu and T. Kailath, "Channel capacity of space-division-multiple-access schemes," IEEE Trans. on Information Theory, IT-44 (4), 1998.
H. Liu and U. Tureli, "A high efficiency carrier offset estimator for OFDM communications,'' IEEE Communications Letters, CL-2 (4), 1998.
H. Liu and G. Xu, "A subspace method for signature waveform estimation in synchronous CDMA systems," IEEE Trans. on Communications, COM-44(10), pages 1346-1354, November 1996.
G. Xu, H. Liu, L. Tong, and T. Kailath, "A Least-Squares Approach to Blind Channel Identification," IEEE Trans. on Signal Processing, SP-43(12), pages 2982-2993, December 1995.
http://www.ee.washington.edu/research/wit/publications_f.html
Recent Conference Papers
Lei Yang, Hui Liu, and Richard Shi, "A Cycle Elimination Method for Constructing VLSI Oriented LDPC Codes," the 62nd IEEE Vehicular Technology Conference, Dallas, TX, USA, September 25-28, 2005.
Guoqing Li and Hui liu, "On the Optimality of Downlink OFDMA MIMO Systems," accepted, the 62nd IEEE Vehicular Technology Conference, Dallas, TX, USA, September 25-28, 2005.
Guoqing Li and Hui Liu, "On the capacity of broadband relay networks," Proc. 39th Asilomar Conf. Signals, Systems, and Computers, vol. 1, pp. 1318-1322, November 2004.
Manyuan Shen, Guoqing Li, and Hui Liu, "Design tradeoffs in OFDMA traffic channels," International Conference on Acosutics, Speech, and Signal Processing, Montreal, Canada, May 17-21, 2004.
Guanbin Xing, Manyuan Shen, and Hui Liu, "An LDPC-based terrestrial multimedia broadcasting system: design, implementation, and experimental results," International Conference on Acosutics, Speech, and Signal Processing, Montreal, Canada, May 17-21, 2004.
Manyuan Shen, Huaning Niu, Hui Liu, and James Ritcey, "Finite precision implementation of LDPC coded M-ary modulation over wireless channels, pp. 114-118, Proc. 38th Asilomar Conf. Signals, Systems, and Computers, Nov. 2003.
Guoqing Li, and Hui Liu, "Downlink dynamic resource allocation for multicell OFDMA system," pp. 517-521, Proc. 38th Asilomar Conf. Signals, Systems, and Computers, Nov. 2003.
Books
OFDM-Based Broadband Wireless Networks - Design and Optimization, Wiley, 2005.
Signal Processing Applications in CDMA Communications, Artech House, 2000.
Patents
H. Liu et al., "Channel allocation in broadband OFDMA/SDMA networks," U.S. Patent 6,870,808
X. Liu, H. Liu, K. Li and W. Zhang, "OFDMA with adaptive subcarrier-cluster configuration and selective loading," U.S. Patent 6,947,748
H. Liu, "Method and Apparatus for Fast Modulation in Synchronous CDMA Communications," U.S. Patent 5,864,548.
H. Liu and G. Xu, "Methods for channel estimation and signal detection of CDMA signals," U.S. Patent 5,905,721.
H. Liu, G. Xu, and P. Liu, "Method and Apparatus for Carrier Recovery and Compensation in Spread Spectrum Wireless Communications," U.S. Patent 5,982,809.
H. Liu, G. Xu and P. Liu, "Method for timing recovery and compensation in time-division-duplex wireless communications," U.S. Patent 6, 470,057.
H. Liu and G. Xu, "Smart Antenna CDMA Wireless Communication Systems," U.S. Patent 6,980,527
Active Grants
"Dirty paper precoder prototype development and demonstration," UW TGIF
"Heterogeneous System Integration in System-on-a-Chip Designs," National Science Foundation
Recent Graduate Students
Ufuk Tureli, Department of Electrical Engineering, University of Virginia, Ph.D. 2000, (now a professor at Stevens Institute of Technology)
Hujun Yin, Department of Electrical Engineering, University of Washington, Ph.D. 2002, (now with Intel)
Didem Kivanc, Department of Electrical Engineering, University of Washington, Ph.D. 2005
Guanbin Xing, Department of Electrical Engineering, University of Washington, Ph.D. 2003 (now with Adaptix)
Manyuan Shen, Department of Electrical Engineering, University of Washington, Ph.D. 2004 (now with Adaptix)
Guoqing Li, Department of Electrical Engineering, University of Washington, Ph.D. 2004 (now with Intel)
Editorships
Editor for the IEEE Transactions in Communications
