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Erschienen in:
2007 | OriginalPaper | Buchkapitel
A Game Theoretic Approach to Interference Management in Cognitive Networks
verfasst von : Nie Nie, Cristina Comaniciu, Prathima Agrawal
Erschienen in: Wireless Communications
Verlag: Springer New York
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In this paper, we propose a game theoretic solution for joint channel selection and power allocation in cognitive radio networks. Our proposed algorithm enforces cooperation among nodes in an effort to reduce the overall energy consumption in the network. For designing the power control, we consider both the case in which no transmission power constraints are imposed, as well as the more practical case, in which the maximum transmission power is limited. We show that an iterative algorithm for channel scheduling and power allocation can be implemented, which converges to a pure strategy Nash equilibrium solution, i.e., a deterministic choice of channels and transmission powers for all users. Our simulation results also show that, while both channel allocation and power control can independently improve the system performance, there is a significant gain for the joint algorithm.