Title: Massive Grant-Free Multiple-Access for IoT Networks

Abstract: Future IoT networks are expected to be the massive ultra-dense wireless networks aiming at providing a wide-range services, from high-rate continuous applications to low-rate sporadic short-burst services. Explicitly, radio access for sporadic short-burst IoT traffic based on the traditional multiple-access schemes used, such as, in LTE/LTE-A, is inefficient, due to the resultant high overhead ratio. In this talk, we first
address the main challenges of radio access in massive IoT networks. Then, in order to reduce the overhead ratio, the problems and technical solutions for massive grant-free multiple-access are explored. Furthermore, some low-complexity detection schemes that are efficient for operation in heavily loaded IoT systems are considered. We emphasize the advantages, disadvantages and challenges for the practical implementation of these optional techniques. We conclude the talk with some open issues for research.

Bio: Lie-Liang Yang is the professor of wireless communications in the School of Electronics and Computer Science at the University of Southampton. He has research interest in wireless communications, wireless networks and signal processing for wireless communications, as well as molecular communications and nano-networks. He has published over 370 research papers, authored/co-authored three books and a number of book chapters. The details about his research publications can be found at https://www.ecs.soton.ac.uk/people/llyang.
He is a fellow of both the IEEE and the IET, and was a distinguished lecturer of the IEEE VTS. He served as an associate editor to the IEEE Trans. on Vehicular Technology and Journal of Communications and Networks (JCN), and is currently an associate editor of IEEE Access and an subject editor of IET Electronics Letters.