Starting from the vision, key performance indicators (KPI), and key enabling techniques (KETs) of 6G wireless networks, this talk will focus on the role of multi-band communications in 6G where optical, mm-wave and Terahertz transmissions will coexist with the conventional RF spectrum. Specifically, this talk will first discuss some of the fundamental challenges related to network dimensioning, mobility management, and resource optimization in multi-band networks. Then, recent research results will be presented to demonstrate potential solution techniques that can overcome some of the design challenges and answer the questions such as (1) whether mobility can be efficiently supported through multi-band communications? (2) how to efficiently associate and offload devices in a multi-band network? and (3) how the network resource management can be designed to combat the shorter channel coherence time in optical, mm-wave and Terahertz transmissions. Finally, the talk will pin-point some of the emerging technologies that can be leveraged to enhance the multi-band 6G networks' reliability.
Hina Tabassum is currently an Assistant Professor at the Lassonde School of Engineering, York University, Canada. Prior to that, she was a postdoctoral research fellow at the Department of Electrical and Computer Engineering, University of Manitoba, Canada. She received her PhD degree from King Abdullah University of Science and Technology (KAUST) in 2013. She is a Senior member of IEEE and registered Professional Engineer in the province of Ontario, Canada. She has published over 70 technical articles in well-reputed IEEE journals, magazines, and conferences. Her publications thus far have garnered 4000+ citations with an h-index of 29 (according to Google Scholar) – a record that is steadily growing. She is the founding chair of a special interest group on THz communications in IEEE Communications Society (ComSoc) - Radio Communications Committee (RCC). She has been recognized as an Exemplary Editor by IEEE Communications Letters, 2020, and an Exemplary Reviewer (Top 2% of all reviewers) by IEEE Transactions on Communications in 2015-2017, 2019, and 2020. Currently, she is serving as an Associate Editor in IEEE Communications Letters, IEEE Transactions on Green Communications, IEEE Communications Surveys and Tutorials, and IEEE Open Journal of Communications Society. Her research interests include stochastic modeling, analysis, and optimization of energy efficient multi-band 5G/6G wireless networks jointly operating on sub-6GHz, millimeter, and Terahertz frequencies with applications to vehicular, aerial, and satellite networks.