随着蜂窝移动通信市场的巨大发展，下一代通信将是移动多媒体通信。
这种情况产生了一个问题，如何对语音信源以外的多媒体信源进行功率控制。
在探讨这个问题上，我们引入微观经济学中的数学模型和概念以及博弈论理论。
在本文中，电话的通话质量被称为“效度”，对于一个CDMA电话通信的分布式功率控制被看作是一个‘非协作的博弈。(With the great development of cellular mobile communication market, the next generation communication will be mobile multimedia communication.
This situation raises a problem of how to control the power of multimedia sources other than voice sources. In discussing this problem, we introduce mathematical models and concepts in microeconomics as well as game theory. In this paper, the quality of telephone calls is called "validity", and distributed power control for a CDMA telephone communication is regarded as a "non-cooperative game".)