Title:  Stochastic Geometry for Wireless Networks: A Tutorial and Overview of Current Trends

Speaker: Charles Wiame (MIT)

Date: Tuesday, November 19th, 2024
Time: 3 pm-4 pm
Location: EXP-401A Conference Room

Abstract: Stochastic Geometry (SG) is a branch of spatial statistics with applications across diverse fields such as communication networks, image processing, material science, and astronomy. In wireless networks, SG uses point processes to model network nodes (such as mobile phones and base stations). These processes capture the randomness in the relative positions of users and base stations in large-scale networks. Using powerful theorems, analytical expressions can be derived to describe the statistical distribution of network performance, taking into account this spatial randomness.

The first part of the seminar will introduce the fundamental theorems of SG, a taxonomy of point processes, and key performance metrics. Some results will be illustrated through examples relying on the Poisson point process, the canonical model in SG.

The second part of the talk will explore applications and current research topics in SG. These topics will include THz networks, integrated communication and sensing, and non-terrestrial networks.


Biography: Charles Wiame earned his M.Sc. degree in electrical engineering from UCLouvain, Belgium, in 2017. As a Ph.D. student under the guidance of Prof. L. Vandendorpe and Prof. C. Oestges at UCLouvain, he successfully obtained his Ph.D. degree in 2023. His doctoral research focused on exploring the trade-offs between coverage and electromagnetic field (EMF) exposure in wireless systems, approached from a stochastic geometry perspective. Simultaneously, Charles served as a teaching assistant and lecturer at both the bachelor and master levels.

In 2022, he was visiting researcher in the lab of Prof. Emil Björnson at the Kungliga Tekniska Högskolan (KTH), Stockholm, Sweden, where he studied cell-free massive Multiple Input Multiple Output (MIMO) systems.

After receiving a postdoctoral research fellowship from the Belgian American Education Foundation (BAEF), Charles joined the Research Laboratory of Electronics (RLE) at the Massachusetts Institute of Technology (MIT). He currently works in the Reliable Communications and Network Coding (NCRC) group, led by Prof. Muriel Médard. His ongoing research projects are dedicated to improvements in the GRAND decoder for wireless systems. In 2024, Charles was a co-recipient of the Ellersick Best Paper Award at the IEEE Military Communications Conference.