Concurrency and Computation: Practice & Experience
A stackelberg game for spectrum leasing in cooperative cognitive radio networks
International Journal of Automation and Computing
Wireless Personal Communications: An International Journal
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In this paper, we investigate joint relay selection and power allocation to maximize system throughput with limited interference to licensed (primary) users in cognitive radio (CR) systems. As these two problems are coupled together, we first develop an optimal approach based on the dual method and then propose a suboptimal approach to reduce complexity while maintaining reasonable performance. From our simulation results, the proposed approaches can increase the system throughput by over 50%.