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• W1771509181 abstract "Cognitive radio (CR) has achieved increasing attention to improve the spectrum utilisation by allowing the coexistence of primary users (PUs) and cognitive users (CUs) in the same frequency band. As the spectrum of interest is licenced to primary network, power control must be carried out within the CR system so that no excessive interference is caused to PUs. In this study, the problem of power control is investigated in CR systems based on game theory subject to interference power constraint at PU and the signal-to-interference-plus-noise ratio (SINR) constraint of each CU. The objective is to reduce the power consumption caused by some CUs’ SINR over the target value. First, a non-cooperation power control game is formulated, and then an adaptive power control algorithm based on feedback function is proposed. Moreover, the existence and uniqueness of Nash equilibrium are proved. Simulation results show that, compared with other distributed algorithms, the proposed algorithm can reduce the power consumption and overcome the near-far effect." @default.
• W1771509181 created "2016-06-24" @default.
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• W1771509181 date "2015-10-01" @default.
• W1771509181 modified "2023-10-16" @default.
• W1771509181 title "Adaptive power control algorithm in cognitive radio based on game theory" @default.
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• W1771509181 doi "https://doi.org/10.1049/iet-com.2014.1109" @default.
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