Joint Adaptive Modulation Coding and Cooperative ARQ over Relay Channels-Applications to Land Mobile Satellite Communications

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dc.creatorMardani, Morteza
dc.creatorHarsini, Jalil S.
dc.creatorLahouti, Farshad
dc.creatorEliasi, Behrouz
dc.date2008-11-26
dc.date.accessioned2026-07-07T12:04:53Z
dc.date.available2026-07-07T12:04:53Z
dc.descriptionIn a cooperative relay network, a relay node (R) facilitates data transmission to the destination node (D), when the latter is unable to decode the source node (S) data correctly. This paper considers such a system model and presents a cross-layer approach to jointly design adaptive modulation and coding (AMC) at the physical layer and cooperative truncated automatic repeat request (ARQ) protocol at the data link layer. We first derive a closed form expression for the spectral efficiency of the joint cooperative ARQ-AMC scheme. Aiming at maximizing this performance measure, we then optimize two AMC schemes for S-D and R-D links, which directly satisfy a prescribed packet loss rate constraint. As an interesting application, we also consider the problem of joint link adaptation and blockage mitigation in land mobile satellite communications (LMSC). We also present a new relay-assisted transmission protocol for LMSC, which delivers the source data to the destination via the relaying link, when the S-D channel is in outage. Numerical results indicate that the proposed schemes noticeably enhances the spectral efficiency compared to a system, which uses a conventional ARQ-AMC scheme at the S-D link, or a system which employs an optimized fixed rate cooperative-ARQ protocol.
dc.description24 pages, 7 figures, 1 table, Submitted to the International Journal on Wireless Communications and Mobile Computing, Wiley & Sons, Submitted July 2008
dc.identifierhttps://arxiv.org/abs/0811.4403
dc.identifierhttp://arxiv.org/abs/0811.4403
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/208233
dc.subjectInformation Theory
dc.titleJoint Adaptive Modulation Coding and Cooperative ARQ over Relay Channels-Applications to Land Mobile Satellite Communications
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