Transceiver Design for Full Duplex Radios under Spectrum Sharing Environments

Speaker: Dr. Keshav Singh
Date: 2018-12-10 (Mon) 13:30 - 15:00
Location: conference room 124 at CITI Building
Host: Director Yennun Huang

Abstract:

Wireless spectrum is a scarce commodity in the today’s connected and data-hungry world, where demand for higher data rates is increasing exponentially on a daily basis. To tackle this, efficient spectrum utilization techniques, such as spectrum sharing (SS), and full-duplex (FD) transmission have been considered. While SS can substantially increase the spectrum utilization efficiency by allowing licensed/unlicensed users to share the spectrum with other licensed users, FD radios have the potential to double the spectrum efficiency of current half-duplex systems by transmitting and receiving at the same time and frequency resources. Furthermore, both SS and FD can be implemented in conjunction with each other, whereby FD SS nodes will be able to transmit and sense the transmission of other nodes at the same spectrum resources. Accordingly, this tutorial will center around 1) various interference cancellation techniques, which are obligatory for the realization of FD radios, and 2) detailed discussion on different spectrum sharing techniques such as cognitive radios, the three-tier Spectrum Access Systems and Radar-LTE co-existencebased on Licensed/Authorized Shared Access. In particular, we will focus on the amalgamation of the above two points by conversing about transceiver design techniques to facilitate spectrum sharing in FD communication systems (such as cellular systems, IoT, etc.) from the perspective of both spectrum and energy efficiency.

Bio:

Dr. Keshav Singh received the Ph.D. degree in Communication Engineering from National Central University, Taiwan, in 2015. Since 2016, he has been with the Institute for Digital Communications, School of Engineering, University of Edinburgh, where he is working as a Research Associate. He has also served as a Technical Program Committee Member for numerous IEEE conferences. He was a student member of the IEEE and currently is a member of IEEE since 2015. He has published around 40 research papers on 5G and beyond technologies and currently is a reviewer for major IEEE Journals such as Transaction on Wireless Communications, Transaction on Communications, Transaction on Signal Processing, etc. His current research interests are in the areas of Green Communications, Resource Allocation, Full-Duplex Radios, Cooperative and Energy Harvesting Networks, Multiple-Input and Multiple-Output (MIMO), Non-Orthogonal Multiple Access (NOMA), and Wireless Edge Caching.