时间：3月27日上午10:15-11:30

地点：1号楼319会议室

Presenter: Y. Rosa Zheng, Dept of ECE, Missouri University of Science and Technology, Rolla, MO 65409. 

Title: MIMO Turbo Equalization for Severe Triply-Selective Fading Channels

Abstract: Severe triply-selective fading channels are found in many applications where multipath delay spread, Doppler-to-Carrier ratio, and MIMO spatial correlation are very high. Examples of such channel include digital TV broadcasting channel, shallow water acoustic channel, and amplify-and-forward relay channel. This talk will first give an overview of the technical challenges associated with such channels, then present MIMO turbo equalization techniques as a solution to enhancing performance of physical-layer receivers.  An example of underwater acoustic communication is illustrated with results from several ocean experiments to compare the effectiveness of single-carrier frequency-domain Turbo linear equalization and time-domain linear or decision feedback Turbo equalization.  

Biography: Yahong Rosa Zheng received the B.S. degree from the University of Electronic Science and Technology of China, Chengdu, Sichuan Province, China, in 1987 and the M.S. degree from Tsinghua University, Beijing, China, in 1989. She received the Ph.D. degree from the Department of Systems and Computer Engineering, Carleton University, Ottawa, ONT, Canada, in 2002. From 1989 to 1996, she worked as engineer and technical staff at several companies, including Beijing Peony Electronics Group, Beijing China, Sagem Australasia, Sydney, Australia, and Polytronics, Markham, Canada. She was an NSERC Postdoctoral Fellow from 2003 to 2005 with the University of Missouri-Columbia. Since fall 2005, she has been an Assistant and then Associate Professor with the Department of Electrical and Computer Engineering, Missouri University of Science and Technology, Rolla, MO, USA. Her research interests include array signal processing, wireless communications, and wireless sensor networks. She has published more than 60 journal papers and more than 100 conference papers in these areas. She has served as technical program Co-Chair for the Wireless Communications Symposium (WCS) of IEEE Globecom 2012 and ICC 2014 and tutorial co-chair for Globecom 2016 and ICC 2018. She has been Associate Editor for the IEEE Transactions on Vehicular Technology since 2009. She is the recipient of an NSF CAREER award in 2009. She is a Fellow of IEEE and a Distinguished Lecturer (DL) of IEEE Vehicular Technology Society since 2015.