Title:

Cognitive Wireless Transmission with RF Energy Harvesting: A New Communication Paradigm

Abstract:
Cognitive radio transceivers can opportunistically access the underutilized spectrum of existing wireless systems. RF energy harvesting could provide convenient and potentially perpetual energy supply to low-power wireless sensors. In this talk, we explore a new communication paradigm of cognitive wireless transmission with RF energy harvesting. Such paradigm is especially attractive for future sensor applications, in view of increasingly limited spectrum resources and growing ecological impact of wireless systems. In particular, we will investigate the extended delivery time of secondary packet transmission with interleave cognitive implementation. We will also study the delay performance of overlaid wireless sensor transmission powered by RF energy harvesting. In both cases, the accurate mathematical formulation is illustrated with selected numerical results, from which we develop important design guidelines.

Bio:
Prof. Hong-Chuan Yang received the Ph.D. degree in Electrical Engineering from the University of Minnesota, Minneapolis, USA, in 2003. Dr. Yang is a professor of the Department of Electrical and Computer Engineering at the University of Victoria, Victoria, Canada. From 1995 to 1998, he was a Research Associate with the Science and Technology Information Center (STIC) of Ministry of Posts & Telecommunications (MPT), Beijing, China. His research focuses on different aspects of wireless communications, with special emphasis on the analysis and design of energy and spectral efficient transmission technologies. Dr. Yang is the co-author of the book Order Statistics in Wireless Communications (Cambridge Univ. Press). He was a recipient of the Doctoral Dissertation Fellowship (DDF) award from the graduate school of the University of Minnesota for the 2002–2003 academic year. Dr. Yang is a senior member of IEEE and a registered professional engineer in BC, Canada. He is currently serving as Editors for IEEE Transaction on Communications and Journal on Communications and Networking.