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We are concerned with minimizing outage probability in a typical orthogonal frequency division multiplexing (OFDM)-based two-hop relaying network. With the instantaneous channel state information at the receiver of each relay, we drive the optimal relay selection scheme which is jointly with optimum power allocation policies, and can be implemented in a distributed way. Since the power allocation...
In this paper we propose a novel relay-enabled MAC protocol based on IEEE 802.11 RTS/CTS scheme for MANETs. The protocol enable the middle node lies between the source and destination to decide whether to relay for them adaptively based on the current channel state information (CSI). Because the channel with better quality can transmit data with higher rate, and distance is one of the primary factors...
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