IEEE Transactions on Wireless Communications · 2010 · 222 citations · 9 references
EngineeringCommunicationElectrical EngineeringDigital CommunicationOptimizationWireless CommunicationsCognitive RadioCooperative CommunicationInterference ManagementPower ControlPower OptimizationResource AllocationCognitive Radio NetworksInterferencePower AllocationPower Allocation In Cooperative NetworksRadio Resource AllocationRelay SelectionResource Allocation In Cooperative NetworksThroughput
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%.
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