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宽带码分多址 (WCDMA)网络中功率控制是进行资源管理的核心手段。该文在 Goodm an的研究基础上提出了一种新的功率控制方法。无线数据网络中各个用户得到的服务质量用效用函数来表示 ,分布式功率控制被描述为一个非合作博弈的过程 ,控制策略是为了寻找达到“Nash均衡”点的一组发射功率 ,价格函数的引入提高了系统的效率。文中提出了一个新的价格函数——能够根据系统拥塞状态自动调整的价格函数。在此价格函数中 ,利用等效带宽来反映系统当前的资源消耗情况 ,通过动态地对各个用户施加价格使系统的运行效率大为提高。对新的价格函数进行了仿真分析
Power control in wideband code division multiple access (WCDMA) networks is a central resource for resource management. This paper presents a new power control method based on Goodman’s research. The quality of service obtained by each user in wireless data network is expressed by utility function. Distributed power control is described as a non-cooperative game. The control strategy is to find a set of transmit power and price function that reach the point of “Nash Equilibrium” Introduced to improve the efficiency of the system. In this paper, a new price function is proposed - a price function that can be automatically adjusted according to the system congestion status. In this price function, the equivalent bandwidth is used to reflect the current resource consumption of the system, which greatly improves the operating efficiency of the system by imposing price on each user. The new price function is simulated