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Game theory for SINR-based power control in device-to-device communications

机译：设备间通信中基于SINR的功率控制的博弈论

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Device-to-Device (D2D) communication underlaying cellular network can improve the spectrum efficiency due to both direct proximity communication and frequency reuse. However, such performance improvement is influenced by the co-channel interference and time varying nature of channels. The purpose of this paper is to study and to investigate both pure and mixed games, using two utility functions game for CUE and DUE, in order to enhance the system spectral efficiency and increase the SINR. Unlike previous works which have dealt with potential and dynamic games etc., we propose in this paper a pure and mixed game. The most important, is that the used game and utility function of each user (CUE and DUE) should be appropriately aligned to the global objective for pure and mixed games and can meet this requirement. To tackle this problem, we first define a pure and mixed strategies non-cooperative games, in order to model the interactions between the cellular and D2D users. Indeed, each kind of users (D2D and Cellular users) is modeled as a rational player, aiming at maximizing its own net utility, while a Quality of Service (QoS), in terms of Signal-to-Interference plus-Noise-Ratio (SINR) threshold, should be satisfied for both D2D and cellular users. Second, for each kind of game: pure and mixed, a closed form of NE amount of power is derived, where existence and uniqueness of the Nash equilibrium (NE) are also investigated. Finally, simulations are conducted to compare the proposed framework of the two kinds of proposed PC mechanisms: centralized and distributed according to the two kinds of users: D2D and cellular users. (C) 2019 Elsevier B.V. All rights reserved.
机译：由于直接邻近通信和频率复用，蜂窝网络下的设备到设备（D2D）通信可以提高频谱效率。但是，这种性能的提高受到同信道干扰和信道的时变特性的影响。本文的目的是通过使用两个针对CUE和DUE的效用函数博弈来研究和研究纯博弈和混合博弈，以提高系统频谱效率并提高SINR。与以前涉及潜在和动态游戏等的作品不同，我们在本文中提出一种纯混合游戏。最重要的是，每个用户（CUE和DUE）使用的游戏和实用程序功能应与纯净和混合游戏的全球目标适当匹配，并且可以满足此要求。为了解决这个问题，我们首先定义一个纯策略和混合策略的非合作游戏，以对蜂窝和D2D用户之间的交互进行建模。实际上，每种用户（D2D和蜂窝用户）都被建模为理性的参与者，旨在最大程度地发挥自己的网络效用，而服务质量（QoS）则以信号干扰加噪声比（ SINR）阈值，D2D和蜂窝用户均应满足。其次，对于每种博弈：纯博弈和混合博弈，都得出NE形式权力的封闭形式，其中还研究了Nash均衡（NE）的存在和唯一性。最后，进行仿真以比较两种提议的PC机制的提议框架：根据两种用户（D2D和蜂窝用户）进行集中和分布式。 （C）2019 Elsevier B.V.保留所有权利。

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