Vishaka BASNAYAKE MUDIYANSELAGE : "Service de communication d'urgence sans fil 5G fiables"

Résumé : During large-scale disasters, emergency communication systems that are reliable, responsive, and energy-efficient are crucial. This thesis focuses on designing reliable emergency communication systems for disaster scenarios in out-of-coverage areas. The proposed systems are designed to work seamlessly across the data link, network, and application layers. At the data link layer, a new decoding scheme named Cyclic Triangular Successive Interference Cancellation (Cyclic T-SIC) is proposed to enhance the reliability in Asynchronous NOMA-assisted D2D communications.
Moreover, at the network layer, new multi-hop protocols namely Multi-Hop Emergency caLl Protocol (M-HELP) and 5G Standalone Service (5G-SOS) that comply with 3GPP standards are introduced to reduce control traffic and improve emergency information transfer reliability. Moreover, a new Multi Victim Localization Algorithm (MVLA) is proposed at the application layer to locate victim devices during emergencies. This scheme uses radio data from outband D2D-assisted multi-hop emergency calls and applies constraint satisfaction methods to locate victims in a progressive propagation manner. Additionally, an emergency service architecture is also proposed comprising an optimized machine learning model to locate population-congested areas during pandemics.
By comparing and evaluating the proposed methods and schemes with conventional state-of-the-art approaches, valuable insights are obtained into the design of efficient and optimal emergency communication systems for areas with limited network coverage.

Jury Composition : 

Hakim MABED, Associate Professor, Université Bourgogne Franche-Comté, Directeur de thèse

Jakllari GENTIAN, Professeur des universités, Toulouse INP–ENSEEIHT, Rapporteur

Philippe CANALDA, Associate Professor, Université Bourgogne Franche-Comté, CoDirecteur de thèse

Nathalie MITTON, Directeur de recherche, INRIA Lille, Examinateur

Dushantha Nalin K. JAYAKODY, Professeur des universités, Lusófona University, Portugal and Sri Lanka Technological Campus, Sri Lanka, CoDirecteur de thèse

1. Lakshmi SUTHA, Associate Professor, National Institute of Technology Puducherry, Examinateur

Rui  DINIS, Professeure des universités, New University of Lisbon, Rapporteur

Localization : Campus portes du Jura 4 Place Lucien Tharradin Département R&T 25200 MONTBELIARD - salle Amphithéâtre 2