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9 septembre 2013
- handle: 10670/1.6ckpm9
- hal: hal-01108112
- doi: 10.1109/ITW.2013.6691223
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info:eu-repo/semantics/altIdentifier/doi/10.1109/ITW.2013.6691223
info:eu-repo/semantics/OpenAccess
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State Dependent Wiretap Channel Physical Layer Security Hybrid Automatic Retransmission RequestSujets proches
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Maël Le Treust et al., « Secrecy & Rate Adaptation for secure HARQ protocols », HAL-SHS : sciences de l'information, de la communication et des bibliothèques, ID : 10.1109/ITW.2013.6691223
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Résumé
This paper is dedicated to the study of HARQ protocols under a secrecy constraint. An encoder sends information to a legitimate decoder while keeping it secret from the eavesdrop-per. 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.