Secrecy in Cooperative Relay Broadcast Channels

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dc.creatorEkrem, E.
dc.creatorUlukus, S.
dc.date2008-11-09
dc.date.accessioned2026-07-07T10:17:07Z
dc.date.available2026-07-07T10:17:07Z
dc.descriptionWe investigate the effects of user cooperation on the secrecy of broadcast channels by considering a cooperative relay broadcast channel. We show that user cooperation can increase the achievable secrecy region. We propose an achievable scheme that combines Marton's coding scheme for broadcast channels and Cover and El Gamal's compress-and-forward scheme for relay channels. We derive outer bounds for the rate-equivocation region using auxiliary random variables for single-letterization. Finally, we consider a Gaussian channel and show that both users can have positive secrecy rates, which is not possible for scalar Gaussian broadcast channels without cooperation.
dc.descriptionSubmitted to IEEE Trans. Inf. Theory, October 2008
dc.identifierhttps://arxiv.org/abs/0811.1317
dc.identifierhttp://arxiv.org/abs/0811.1317
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/173743
dc.subjectInformation Theory
dc.titleSecrecy in Cooperative Relay Broadcast Channels
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