CDMA系统中一种新的分布式博弈功率控制算法
doi: 10.3724/SP.J.1146.2007.00200
A Novel Distributed Power Control Algorithm in CDMA System: A Game Theoretic Approach
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摘要: 该文通过设计一种有效的代价函数，提出了一种用于蜂窝CDMA系统的博弈功率控制算法，并证明了该算法纳什均衡的存在及唯一性。通过仿真表明，该文提出的算法同几种经典的分布式算法相比，不但能够加快收敛速度，而且在系统中用户终端多于20的情况下，能够降低系统中用户发射功率。Abstract: In this paper, a novel algorithm for distributed power control in cellular CDMA system based on game theory is proposed and an effective cost function is designed for this scheme. Then the existence and uniqueness of the Nash equilibrium are proved for the proposed algorithm. The simulation results show that the proposed algorithm, which compared with several classical distributed algorithms, not only can speed up the convergence but also reduce the transmit power while the terminals are more than 20.
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