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We propose an efficient cooperative ARQ (Automatic Repeat request) scheme for multi-hop underwater acoustic communications, in which cooperative nodes are used to provide more reliable alternative paths for a specific source-relay-destination connection. Based on the knowledge of inter-node distances, a cooperative region is defined to include all possible candidates for cooperative nodes from a given...
We propose an efficient cooperative ARQ (Automatic Repeat reQuest) scheme for underwater acoustic communications, in which cooperative nodes are used to provide more reliable alternative paths for a specific source-to-destination connection. Based on the knowledge of inter-node distances, a cooperative region is defined to include all possible candidates for cooperative nodes from a given pair of...
In underwater acoustic communications, using the property of long propagation delay, a concurrent packet transmission between two nodes could be made feasible without any collision. In this paper, utilizing the channel-sharing property, an efficient ARQ scheme is proposed. By controlling packet size such a way that transmission time becomes smaller than propagation delay, and by scheduling such packets...
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