Séminaire ICI : Maël Le Treust

Titre du séminaire et orateur

Secrecy and Rate Adaptation for Secure HARQ Protocols.
Maël Le Treust, ETIS, équipe ICI.

Date et lieu

Mardi 19 novembre 2013, 14h.
ENSEA, salle 384.

Le séminaire peut être suivi à distance via XiMinds.


This presentation is dedicated to the study of Hybrid Automatic Retransmission reQuest (HARQ) protocols under a secrecy constraint. An encoder sends information to a legitimate decoder while keeping it secret from the eavesdropper. Our objective is to provide a coding scheme that satisfies both reliability and confidentiality conditions. This problem has been investigated in the literature using a coding scheme that involves a unique secrecy parameter. The uniqueness of this parameter is sub-optimal for the  throughput criteria and we propose a new coding scheme that introduces additional degrees of freedom. Our code involves Secrecy Adaptation and Rate Adaptation and we called it SARA-code. The first contribution is to prove that the SARA-code has small error probability and small information leakage rate. The second contribution is to show, over a numerical example, that the SARA-code improves the secrecy throughput.