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arXiv cs/0501064cs.ITmath.IT
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多载波CDMA系统的非合作功率控制博弈

A Non-Cooperative Power Control Game for Multi-Carrier CDMA Systems

Farhad Meshkati, Mung Chiang, Stuart C. Schwartz, H. Vincent Poor, Narayan B. Mandayam

摘要:

在这项工作中,提出了一种非合作的多载波CDMA系统的功率控制博弈。在提议的游戏中,每个用户需要决定在每个载波上传输多少功率以最大化其整体效用。这里考虑的效用函数测量每焦耳能量消耗传输的可靠比特数。结果表明,当用户只在具有最佳“有效信道”的载波上传输时,用户的效用最大化。研究了该博弈的纳什均衡的存在性和唯一性,并讨论了均衡的性质。此外,迭代和分布式算法达到平衡(如果它存在)。结果表明,所提出的方法的结果在一个显着的改善,在平衡时实现的总效用相比,每个用户最大化其效用在每个载波独立的情况下。

英文摘要:

In this work, a non-cooperative power control game for multi-carrier CDMA systems is proposed. In the proposed game, each user needs to decide how much power to transmit over each carrier to maximize its overall utility. The utility function considered here measures the number of reliable bits transmitted per joule of energy consumed. It is shown that the user's utility is maximized when the user transmits only on the carrier with the best "effective channel". The existence and uniqueness of Nash equilibrium for the proposed game are investigated and the properties of equilibrium are studied. Also, an iterative and distributed algorithm for reaching the equilibrium (if it exists) is presented. It is shown that the proposed approach results in a significant improvement in the total utility achieved at equilibrium compared to the case in which each user maximizes its utility over each carrier independently.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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