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Simultaneous Wireless Information and Energy Transmission

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Jun 09

Date and time: 9 June 2022, 12:00 – 13:00 CEST (UTC +2)
Speaker: Dr Sadaf ul Zuhra, INRIA, Sophia Antipolis, France and Department of Electrical and Computer Engineering, Princeton University, USA
Title: Simultaneous Wireless Information and Energy Transmission

Zoom: https://kth-se.zoom.us/j/69560887455
Meeting ID: 695 6088 7455
Password: 755440

Picture of Dr Sadaf ul Zuhra, INRIA, Sophia Antipolis, FranceAbstract: This talk studies the fundamental limits of simultaneous information and energy transmission (SIET) using radio frequency (RF) signals. SIET has emerged as a key enabler for the sixth generation (6G) of wireless communication systems. Aside from cellular and data services, 6G systems are envisioned to support a wide range of additional services such as extended reality, remote medicine and autonomous driving. These services will be enabled by a massive network of low power devices such as sensors and actuators, often deployed in hard-to-reach places like the human body, robots, and industrial systems. SIET provides the means to remotely power such devices using information-carrying RF signals. The study of the fundamental limits of SIET is essential for determining how much energy can be harvested from an RF signal while transmitting information at a given rate or vice versa.

A primary focus of the fundamental research in SIET has been the trade-off between the information and energy rate that can be simultaneously transmitted by a signal. This work is the first to show that the information-energy trade-off is not the only trade-off involved in SIET. In the finite block-length regime with finite constellations, which is the focus of this work, several other trade-offs emerge. In particular, departing from the asymptotic regime leads to the decoding error probability (DEP) and energy outage probability (EOP) being bounded away from zero. This talk will explain the trade-offs between the information transmission rate, the energy transmission rate, the DEP and the EOP in SIET. This will be followed by a discussion of some of the most important results from this work that form the fundamental theory of SIET.

This is joint work with Dr Samir M. Perlaza (INRIA, France), Prof. H. Vincent Poor (Princeton University, NJ, USA), and Dr. Eitan Altman (INRIA, France).

Bio: Sadaf Ul Zuhra is a postdoctoral researcher at INRIA, Sophia Antipolis, France and a visiting postdoctoral research associate in the Department of Electrical and Computer Engineering at Princeton University, NJ, USA. She received her PhD in electrical engineering from the Indian Institute of Technology Bombay (IIT Bombay), India in 2020. Dr Zuhra’s research interests are primarily in the areas of information theory and game theory with applications in wireless networks and energy systems.

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