Ahmed E. Kamal


Title Energy Harvesting in Heterogeneous Networks with Hybrid Powered Communication Systems

In this talk we investigate energy efficient and energy harvesting (EH) in heterogeneous networks (HetNets) where all base stations (BSs) are equipped to harvest energy from renewable energy sources, e.g., solar. We consider a hybrid power supply of green (renewable) and traditional micro-grid, such that traditional micro-grid is not exploited as long as the BSs can meet their power demands from harvested and stored green energy. Therefore, our goal is to minimize the network-wide energy consumption subject to users' quality of service and BSs' power consumption constraints. We introduce an optimization formulation to decide on BSs sleeping strategies and user-cell association to achieve the minimum energy consumption.  We investigate two cases based on the knowledge level about future renewable energy (RE) statistics: (i) a practical online knowledge case where future RE statistics are unknown, (ii) an offline knowledge case where future  network’s statistics are a priori perfectly estimated, and this case is used for benchmarking. A green communication algorithm based on binary particle swarm optimization is used to solve the problem with low time complexity.


Ahmed E. Kamal (S'82-M'87-SM'91-F'12) is a professor of Electrical and Computer Engineering at Iowa State University in the USA. He received a B.Sc. (distinction with honors) and an M.Sc. both from Cairo University, Egypt, and an M.A.Sc. and a Ph.D. both from the University of Toronto, Canada, all in Electrical Engineering. He is a Fellow of the IEEE and a senior member of the Association of Computing Machinery. He was an IEEE Communications Society Distinguished Lecturer for 2013 and 2014. Kamal's research interests include cognitive radio networks, optical networks, wireless sensor networks, and performance evaluation. He received the 1993 IEE Hartree Premium for papers published in Computers and Control in IEE Proceedings, and the best paper award of the IEEE Globecom 2008 Symposium on Ad Hoc and Sensors Networks Symposium. He also received the 2016 Outstanding Technical Achievement Award from the Optical Networks Technical Committee of the IEEE Communications Society. Kamal chaired or co-chaired Technical Program Committees of several IEEE sponsored conferences including the Optical Networks and Systems Symposia of the IEEE Globecom 2007 and 2010, the Cognitive Radio and Networks Symposia of the IEEE Globecom 2012 and 2014, and the Access Systems and Networks track of the IEEE International Conference on Communications 2016. He is also the chair of the IEEE Communications Society Technical Committee on Transmission, Access and Optical Systems (TAOS) for 2015 and 2016. He was on the editorial boards of the IEEE Communications Surveys and Tutorials from 2011-2017, and is currently on the editorial boards of the Computer Networks journal, and the Optical Switching and Networking journal.