Fast and Distributed Power Control Algorithm in Underlay Cognitive Radio Networks

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Provided by: Journal of Communications
Topic: Mobility
Format: PDF
The power allocation in an underlay cognitive radio network rises up several challenges due to rapid utilization of the available spectrum hole. In this paper, the authors propose a non-cooperative power-game algorithm to solve the power allocation problem in an underlay cognitive radio network with two main objectives: to provide good quality of service to cognitive radio nodes, and to protect the transmission of primary users from the interference generated by nearby cognitive radio. These objectives have been assured by including the following constraints: transmit power on each cognitive node, acceptable aggregate interference at the primary' receiver and quality of service at the cognitive radio' receiver.
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