JNL Research Group
University of Notre Dame
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Wenyi Zhang
Education
Ph.D. E.E., University of Notre Dame, 2006.
M.S.E.E., University of Notre Dame, 2003.
B.S., Tsinghua University, Beijing.
Research Summary
My research involves various aspects of communications. The current focus is on the "non-coherent" scenario, where neither transmitter nor receiver has access to channel response, except its statistical properties. Such situation is commonly encountered in wireless channels, which vary randomly over time, frequency, and space, due to effects like fading, shadowing, path-loss, etc., arising in the complex physical environment. My work attempts to characterize the potential benefits of exploiting multiple-antenna architectures and inherent channel correlation. I am working both on information-theoretic analysis, and novel coding/signal processing methods for practical transceiver design.
Publications
| [1] | W. Zhang and J. N. Laneman, “Benefits of Correlated MIMO Schemes for Wideband Communication,” in Proc. IEEE Int. Symp. Information Theory (ISIT), Chicago, IL, July 2004, p. 414. [ PDF ] |
| [2] | W. Zhang and J. N. Laneman, “An Induced Additive-Noise Model for Non-Coherent Discrete-Time Memoryless Rayleigh Fading Channels,” in Proc. Conf. Inform. Sci. and Syst. (CISS), Baltimore, MD, Mar. 2005. [ PDF ] |
| [3] | W. Zhang and J. N. Laneman, “Recursive Training with Unitary Modulation for Correlated Block-Fading MIMO Channels,” in Proc. IEEE Workshop on Sig. Proc. Adv. in Wireless Comm. (SPAWC), New York, NY, June 2005, pp. 746-750. [ PDF ] |
| [4] | W. Zhang and J. N. Laneman, “How Good is Phase-Shift Keying for Peak-Limited Fading Channels in the Low-SNR Regime,” in Proc. Allerton Conf. Communications, Control, and Computing, Monticello, IL, Sept. 2005. [ PDF ] |
| [5] | W. Zhang and J. N. Laneman, “An Induced Additive-Noise Model for Non-Coherent Discrete-Time Memoryless Rayleigh Fading Channels,” IEEE Trans. Inform. Theory, vol. 52, no. 4, pp. 1756-1764, Apr. 2006. [ PDF ] |
| [6] | W. Zhang, “The Role of Channel Correlation in Fading Communication Channels,” Ph.D. dissertation, University of Notre Dame, Notre Dame, IN, July 2006. [ PDF ] |
| [7] | W. Zhang, S. Kotagiri, and J. N. Laneman, “Information Transmission over the Postal Channel with and without Feedback,” in Proc. IEEE Int. Symp. Information Theory (ISIT), Seattle, WA, July 2006, pp. 2749-2753. [ PDF ] |
| [8] | W. Zhang and J. N. Laneman, “How Good is Phase-Shift Keying for Peak-Limited Rayleigh Fading Channels in the Low-SNR Regime?” IEEE Trans. Inform. Theory, vol. 53, no. 1, pp. 236-251, Jan. 2007. [ PDF ] |
| [9] | W. Zhang and J. N. Laneman, “Benefits of Spatial Correlation for Multi-Antenna Non-Coherent Communication over Fading Channels at Low SNR,” IEEE Trans. Wireless Commun., vol. 6, no. 3, pp. 887-896, Mar. 2007. [ PDF ] |
| [10] | W. Zhang, S. Kotagiri, and J. N. Laneman, “Writing on Dirty Paper with Resizing and its Application to Quasi-Static Fading Broadcast Channels,” in Proc. IEEE Int. Symp. Information Theory (ISIT), Nice, France, June 2007. [ PDF ] |
| [11] | W. Zhang, S. Kotagiri, and J. N. Laneman, “On Downlink Transmission Without Transmit Channel State Information and With Outage Constraints,” IEEE Trans. Inform. Theory, vol. 55, no. 9, pp. 4240-4248, Sept. 2009. [ PDF ] |