Topic：Communications Using Ubiquitous Antennas

Time：2014年12月16日（周二）上午10:30-11:30

Venue：信电大楼, 215学术会议室

Speaker：Kaibin Huang, Assistant Professor,

        Dept. of Electrical & Electronic Engineering,

       The University of Hong Kong

Biography

Kaibin Huang (M’08-SM‘13) received the B.Eng. (first-class hons.) and the M.Eng. from the National University of Singapore in 1998 and 2000, respectively, and the Ph.D. degree from The University of Texas at Austin (UT Austin) in 2008, all in electrical engineering. Since Jan. 2014, he has been an assistant professor in the Dept. of Electrical and Electronic Engineering (EEE) at The University of Hong Kong. He is an adjunct professor in the School of EEE at Yonsei University in S. Korea. He used to be a faculty member in the Dept. of Applied Mathematics (AMA) at the Hong Kong Polytechnic University (PolyU) and the Dept. of EEE at Yonsei University. He had been a Postdoctoral Research Fellow in the Department of Electrical and Computer Engineering at the Hong Kong University of Science and Technology from Jun. 2008 to Feb. 2009 and an Associate Scientist at the Institute for Infocomm Research in Singapore from Nov. 1999 to Jul. 2004. His research interests focus on the analysis and design of wireless networks using stochastic geometry and multi-antenna techniques. He frequently serves on the technical program committees of major IEEE conferences in wireless communications. He chairs the Comm. Theory Symp. of IEEE GLOBECOM 2014 and the Adv. Topics in Wireless Comm. Symp. of IEEE/CIC ICCC 2014 and has been the technical co-chair for IEEE CTW 2013, track chairs for IEEE PIMRC 2015, IEE VTC Spring 2013, Asilomar 2011 and IEEE WCNC 2011. He is a guest editor for the IEEE Journal on Selected Areas in Communications, an editor for the IEEE Transactions on Wireless Communications, IEEE Wireless Communications Letters and also IEEE/KICS Journal of Communication and Networks. He is an elected member of the SPCOM Technical Committee of the IEEE Signal Processing Society. Dr. Huang received the Outstanding Teaching Award from Yonsei, Motorola Partnerships in Research Grant, the University Continuing Fellowship from UT Austin, and a Best Paper Award from IEEE GLOBECOM 2006 and PolyU AMA in 2013.

Abstract

The inefficiency of the cellular-network architecture has prevented the promising theoretic gains of communication technologies such as network MIMO, massive MIMO and distributed antennas from fully materializing in practice. The revolutionary cell-less /emph{cloud radio access networks} (C-RANs) are under active development to overcome the drawbacks of cellular networks. In C-RANs, centralized cloud signal processing and minimum onsite hardware make it possible to deploy ubiquitous  distributed antennas  and coordinate them to form a gigantic array, called the ubiquitous array (UA). This talk focuses on designing techniques for UA communications and characterizing their performance. To this end, the UA is modeled as a continuous circular array enclosing target mobiles and free-space propagation is assumed, which allows the use of  mathematical tools including  Fourier series and Bessel functions in the analysis. Based on this model, we discuss a set of novel techniques for channel estimation and transmission such as location inducted noiseless channel estimation, channel conjugate transmission and multiuser phase mode transmission. Via this discussion, we will demonstrate that the UA in theory can support an infinite number of simultaneous users, leading to a shift of paradigm.