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A distributed method for relay selection in cooperative cognitive radio networks

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Journal of Electronics (China)

Abstract

We analyze the performance of a fully decentralized relay-selection method for the relay-assisted Cognitive Radio (CR) systems. The method requires no explicit communication among relay, assumes no prior knowledge of geometry. In particular, we assume that the frequencies chosen by the relay-assisted CR network overlapped with an active primary link. The proposed relay-selection scheme decreases the outage probability by considering both the channel scenario and the interference to the primary link compared with the non-cooperative transmission. Benefits of cooperative diversity are increased with the increased number of relays.

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Correspondence to Junhui Zhao.

Additional information

Supported by the Key Laboratory of Universal Wireless Communications Lab., Beijing University of Posts and Telecommunications, Ministry of Education, the Open Research Fund of National Mobile Communications Research Laboratory (No. W200906), Southeast University, the Fundamental Research Funds for the Central Universities, and National Natural Science Foundation of China (No. 50534060).

Communication author: Zhao Junhui, born in 1973, male, Associate Professor.

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Zhao, J., Chen, X. A distributed method for relay selection in cooperative cognitive radio networks. J. Electron.(China) 27, 715–722 (2010). https://doi.org/10.1007/s11767-011-0513-0

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  • DOI: https://doi.org/10.1007/s11767-011-0513-0

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