Cross-Layer Design for Combining Cooperative Diversity with Truncated ARQ in Ad-hoc Wireless Networks
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资源说明:Abstract—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 the 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 the system throughput
compared to the conventional truncated ARQ scheme and fixed
cooperative diversity protocols.
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