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Samvaad talk by Prof. Priyanka Das, IIIT-Bangalore (November 25, 2024)

#Samvaad Talk Title: Intelligent Reflecting Surfaces: Fundamentals, Optimization, and Insights towards 6G Wireless Networks Speaker: Prof. Priyanka Das, IIIT-Bangalore Date: November 25, 2024 Time: 2 PM Abstract: Spectral efficiency and energy efficiency are becoming two essential criteria for designing cost-effective, sustainable, and green 6G wireless networks. The recent advent of intelligent reflecting surfaces (IRS) enables network operators to control the propagation environment itself. It creates line of sight link by smart reflection to bypass obstacle. A new hybrid network with an active base station and passive IRS can enhance signal power at cell edge or hot spot, and boost network capacity without additional energy consumption. We mostly focus on IRS fundamentals, system model, and developing optimization algorithms to jointly control the transmit power at the base station and the phase shifts of the reflecting units at the IRS in a spectrum sharing set up. The research outcomes will provide a low-cost alternative for energy-inefficient ultra-dense network and massive MIMO, and thus, can also be applied in enhanced Mobile Broadband (eMBB)-plus feature of 6G to provide a high-quality user experience. Biography Priyanka Das received the Ph.D. degree from the Indian Institute of Science, Bangalore, in 2018. She obtained the M.Tech. degree in Digital Signal Processing from the Indian Institute of Technology, Guwahati, in 2011, the B.Tech. degree in Radio Physics and Electronics from the University of Calcutta, West Bengal, in 2009, and the B.Sc. degree in Physics Hons. from the University of Burdwan, West Bengal, in 2006. She worked in Nokia Solutions Networks, Bangalore as summer intern, in 2015, and in Dell Research and Development, Bangalore as software associate engineer, from 2011 to 2012. She is currently an Assistant Professor in IIIT-Bangalore. Her research interests include spectrum sharing networks, MIMO, physical layer security, and intelligent reflecting surfaces. #IIITB #IIITBangalore #SamvaadTalks #IIITBTalks #SanvaadSeries #ResearchTalks