Non-Cooperative Power Allocation Game With Imperfect Sensing Information for Cognitive Radio

Provided by: Universitat de Lleida
Topic: Mobility
Format: PDF
In this paper, the authors consider a sensing-based spectrum sharing scenario and present an efficient decentralized algorithm to maximize the total throughput of the cognitive radio users by optimizing jointly both the detection operation and the power allocation, taking into account the influence of the sensing accuracy. This optimization problem can be formulated as a distributed non-cooperative power allocation game, which can be solved by using an alternating direction optimization method. The transmit power budget of the cognitive radio users and the constraint related to the rate-loss of the primary user due to the interference are considered in the scheme.

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