Title: Spectrum and Energy Efficient MAC for 5G M2M Communications
Weihua Zhuang, Fellow of the IEEE, the Royal Society of Canada, the Canadian Academy of Engineering, and the Engineering Institute of Canada
Department of Electrical and Computer Engineering, University of Waterloo, Canada
Massive machine-to-machine (M2M) communication has been identified as an important use case in 5G communication networks for various Internet-of-Things (IoT) applications. The large number of machines/devices necessitates establishing an effective self-organizing wireless ad hoc network, complementary to cellular systems. In this presentation, we discuss how to dynamically coordinate the transmissions time and bandwidth based on instantaneous traffic load of the links in the ad hoc network, in order to efficiently utilize radio spectrum and device energy. First, we present an energy-efficient medium access control (MAC) protocol for a fully connected network. Energy consumption is reduced by periodically putting radio interfaces in the sleep mode and by reducing transmission collisions. Second, we present a distributed MAC scheme based on dynamic space-reservation in a multi-hop environment. For each scheduled transmission, a proper space area around the receiver node is reserved to enhance spatial spectrum reuse. Third, we study joint scheduling and transmission power control. Based on an asymptotic analysis, we present a scheduling and power control algorithm to approach the maximum spectrum efficiency, subject to an energy consumption constraint. Numerical results demonstrate that the proposed solutions outperform existing MAC protocols.
Dr. Weihua Zhuang has been with the Department of Electrical and Computer Engineering, University of Waterloo, Canada, since 1993, where she is a Professor and a Tier I Canada Research Chair in Wireless Communication Networks. She is the recipient of 2017 Technical Recognition Award from IEEE Communications Society Ad Hoc & Sensor Networks Technical Committee, and a co-recipient of several best paper awards from IEEE conferences. Dr. Zhuang was the Editor-in-Chief of IEEE Transactions on Vehicular Technology (2007-2013), Technical Program Chair/Co-Chair of IEEE VTC Fall 2017 and Fall 2016, and the Technical Program Symposia Chair of the IEEE Globecom 2011. She is a Fellow of the IEEE, the Royal Society of Canada, the Canadian Academy of Engineering, and the Engineering Institute of Canada. Dr. Zhuang is an elected member in the Board of Governors and VP Publications of the IEEE Vehicular Technology Society.