Online Auction Based Relay Selection for Cooperative Communications in CR Networks

In this paper, we propose an online auction based relay selection scheme for cooperative communication in CR networks. Specifically, we design an auction scheme through adopting stopping theory. The proposed scheme ensures that the primary user (PU) can effectively select a CR relay to transmit its packets in a given time bound. Extensive simulations demonstrate that the proposed relay selection scheme can always successfully and efficiently select a proper relay for a PU and can achieve a higher cooperative communication throughput comparing with the conventional schemes.

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