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The impact of partial packet recovery on the inherent secrecy of random linear coding

Research output: Contribution in Book/Report/Proceedings - With ISBN/ISSNConference contribution/Paperpeer-review

Published
Publication date25/08/2022
Host publication2022 IEEE 95th Vehicular Technology Conference: (VTC2022-Spring)
PublisherIEEE
Pages1-6
Number of pages6
ISBN (electronic)9781665482431
ISBN (print)9781665482448
<mark>Original language</mark>English
Event95th IEEE Vehicular Technology Conference - Helsinki, Finland
Duration: 19/06/202222/06/2022

Conference

Conference95th IEEE Vehicular Technology Conference
Abbreviated titleVTC2022-Spring
Country/TerritoryFinland
CityHelsinki
Period19/06/2222/06/22

Publication series

NameIEEE Vehicular Technology Conference
Volume2022-June
ISSN (Print)1550-2252
ISSN (electronic)2577-2465

Conference

Conference95th IEEE Vehicular Technology Conference
Abbreviated titleVTC2022-Spring
Country/TerritoryFinland
CityHelsinki
Period19/06/2222/06/22

Abstract

This paper considers a source, which employs random linear coding (RLC) to encode a message, a legitimate destination, which can recover the message if it gathers a sufficient number of coded packets, and an eavesdropper. The probability of the eavesdropper accumulating enough coded packets to recover the message, known as the intercept probability, has been studied in the literature. In our work, the eavesdropper does not abandon its efforts to obtain the source message if RLC decoding has been unsuccessful; instead, it employs partial packet recovery (PPR) offline in an effort to repair erroneously received coded packets before it attempts RLC decoding again. Results show that PPR-assisted RLC decoding marginally increases the intercept probability, compared to RLC decoding, when the channel conditions are good. However, as the channel conditions deteriorate, PPR-assisted RLC decoding significantly improves the chances of the eavesdropper recovering the source message, even if the eavesdropper experiences similar or worse channel conditions than the destination.

Bibliographic note

©2022 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.