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CenWIT Working Papers

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  1. Throughput maximization of ad-hoc wireless networks using adaptive cooperative diversity and truncated ARQ

    Dai, Lin; Letaief, K. B.
    We propose a cross-layer design which combines truncated ARQ at the link layer and cooperative diversity at the physical layer. In this scheme, both the source node and the relay nodes utilize an orthogonal space-time block code for packet retransmission. In contrast to previous cooperative diversity protocols, here cooperative diversity is invoked only if the destination node receives an erroneous packet from the source node. In addition, the relay nodes are not fixed and are selected according to the channel conditions using CRC. It will be shown that this combination of adaptive cooperative diversity and truncated ARQ can greatly improve...
    (399485 bytes; application/pdf) - 09-abr-2009

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