Non-Cooperative Power Control Game in D2D Underlying Networks with Variant System Conditions

Al-Gumaei, Yousef Ali, Aslam, Nauman, Al-Samman, Ahamed Mohammed, Al-Hadhrami, Tawfik, Noordin, Kamarul and Fazea, Yousef (2019) Non-Cooperative Power Control Game in D2D Underlying Networks with Variant System Conditions. Electronics, 8 (10). ISSN 2079-9292

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Abstract

In this paper, the problem of power control using a game theoretic approach based on sigmoid cost function is studied for device-to-device (D2D) communications underlying cellular networks. A non-cooperative game, where each D2D transmitter and a cellular user select their own transmit power level independently, is analyzed to minimize their user-serving cost function and achieve a target signal to interference-plus-noise-ratio (SINR) requirement. It is proved analytically that the Nash equilibrium point of the game exists and it is unique under certain constraints. Numerical results verify the analysis and demonstrate the effectiveness of the proposed game with variant system conditions, such as path loss exponents, target SINR, interference caused by the cellular user, pricing coefficients, and sigmoid control parameter.

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