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This paper presents a new cooperative ARQ with a distributed relay selection that exploits overhearing of inter-relay channels to achieve higher diversity during retransmission. The relays employ decode and forward (DF) to establish the link between the source and the destination. Upon reception from the source, the number of relays available to contend for transmission depends on the conditions of...
This paper proposes a Multi-relay Cooperative Automatic Repeat ReQuest protocol (MC-ARQ) for IEEE 802.11 based wireless networks. The proposed distributed relay selection scheme not only selects the best relays but also solves the collision problem among multiple contending relays, by sorting the relays in the network according to their instantaneous channel quality with the destination node. No prior...
Cooperative transmission is an efficient technique to realize diversity gain in wireless fading channels via a distributed way. In this paper, we consider a wireless network composed of a source, two parallel relays and a destination terminal. We exploit the limited feedback from the destination and propose cooperative ARQ protocols for two parallel relays. An analysis model to analyze and compare...
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