Mon. June 26, 2017
Full-duplex Communications for 5G Networks
Prof. Octavia A. Dobre, Memorial University, Canada
Dr Animesh Yadav, Memorial University, Canada
Full-duplex communications (FDC) is considered to be one of the potential key technologies for the 5G networks because of its capability of doubling the spectral efficiency. However, FDC suffers from a fundamental problem of self-interference (SI), where the transmitter’s downlink
signal superimposes on the uplink signal and degrades the performance. Recently, significant efforts have been made towards reducing the SI effect. Although research results showed successful reductions in SI, FDC is advocated for low power transmitters such as small cell base stations. Furthermore, 5G networks also rely on the dense deployment of small cells for improving the data rate and enhancing the user experience.
Hence, another fundamental problem FDC suffers from, when combined with densely deployed small cells, is the huge interference when compared to the conventional half-duplex communications. Recently, few works have been published that focus on various techniques to mitigate the interference and reap the benefits offered by FDC.
In this tutorial, we first provide a broad overview of 5G networks, and introduce FDC in the 5G context. Then, SI and interference mitigation techniques are discussed. Several interesting new prospective and open problems related to FDC in a multi-cell environment will be presented, which spur further research in FDC.
About the Speakers
Dr. Octavia A. Dobre is a Professor and Research Chair with the Faculty of Engineering and
Applied Science at Memorial University, Canada. She was a Visiting Professor at Université de Bretagne Occidentale, France, and Massachusetts Institute of Technology (MIT), USA (2013). Dr. Dobre was the recipient of a Royal Society Scholarship at Westminster University, UK (2000), and held a Fulbright Fellowship at Stevens Institute of Technology, USA (2001).
She has co-authored over 190 journal and conference papers and gave more than 40 invited talks to industry and academia. Her research interests include 5G technologies, blind signal identification and parameter estimation techniques, cognitive radio systems, and transceiver optimization algorithms for wireless communications, as well as optical and underwater communications. Her research in these areas has been supported by federal, regional, and
provincial funding agencies, as well as industry and governmental laboratories.
Dr. Dobre is the Editor-in-Chief of the IEEE Communications Letters, as well as an Editor for the IEEE Communications Surveys and Tutorials. She was an Editor and a Senior Editor for the IEEE Communications Letters, Editor for the IEEE Transactions on Wireless Communications and Guest Editor for other prestigious journals. She served as General Chair of CWIT, and
Technical Co-Chair of symposia at numerous conferences, such as IEEE GLOBECOM and ICC.
Dr Animesh Yadav is currently a Postdoctoral Fellow with the Faculty of Engineering and Applied Science at Memorial University, Canada. He received the B.E. degree (with honors) from Dr. B. R. Ambedkar University, Agra, India, in 2001, the M.Tech. degree from the Indian Institute of Technology, Roorkee, India, in 2003, and Ph.D. degree from the University of Oulu, Oulu, Finland, in 2013, all in Electrical Engineering.
During 2003-2007, he worked in iGate, IP Cell as Software Specialist both in India and Finland. From 2008 to 2014 he worked as a Research Scientist in the Centre for Wireless Communications at University of Oulu, Finland. During 2014-2016, he held Post-doctoral Research Fellow positions at the Department of Computer Science, University of Quebec at Montreal, Canada. He is a recipient of the prestigious scholarship from The Fonds de Recherche du Québec – Nature et Technologies under the international postdoctoral category for 2015-2016.
He is also a recipient of the best paper award at the IEEE WiMOB 2016 conference. His current research interests lie in the fields of 5G enabling technologies, green communication, energy harvesting in wireless communications, communications and information theory with special emphasis on wireless communications and signal processing.