Secrecy & Rate Adaptation for secure HARQ protocols

Abstract : 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.
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Communication dans un congrès
ITW 2013, Sep 2013, Sevilla, Spain. Information Theory Workshop (ITW), 2013 IEEE, pp.1 - 5, 2013, Information Theory Workshop (ITW), 2013 IEEE. 〈10.1109/ITW.2013.6691223〉
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Maël Le Treust, Leszek Szczecinski, Fabrice Labeau. Secrecy & Rate Adaptation for secure HARQ protocols. ITW 2013, Sep 2013, Sevilla, Spain. Information Theory Workshop (ITW), 2013 IEEE, pp.1 - 5, 2013, Information Theory Workshop (ITW), 2013 IEEE. 〈10.1109/ITW.2013.6691223〉. 〈hal-01108112〉

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