一种新的分布式功率控制算法  

A New Distributed Power Control Algorithm

作　　者：肖琨[1] 吴诗其[1] 

机构地区：[1]电子科技大学信息所,成都610054

出　　处：《电子与信息学报》2004年第1期35-40,共6页Journal of Electronics & Information Technology

摘　　要：该文首先提出改进的分布式功率控制(IDPC)算法的原型算法,再进一步以分布式实现该原 型算法,从而最终得到IDPC算法。该文还对不同的分布式功率控制算法做了理论分析及仿真比较,最终 得出了IDPC算法具有很快的收敛速度和优越的中断性能的结论。This paper first, proposes the prototype algorithm of an improved distributed power control (IDPC). In this algorithm, mobile units adjust their transmitter powers according to not only their power levels at last iterative step but also the largest and second smallest eigenvalues of the link gain matrix at current time instant. As for the prototype algorithm, link gains for all mobile units must be measured and large burden may be brought in at base stations. For this reason, the prototype algorithm is developed further in a distributed way and thus lead to IDPC algorithm, in which both the positive receiver noise and constrained transmitter power are, also considered. As a result, with IDPC algorithm, the CIR's are balanced quickly and a superior outage performance to other algorithms is reached.

关 键 词：分布式功率控制算法 IDPC 收敛速度 中断性能 移动通信 CDMA小区系统 

分 类 号：TN929.533[电子电信—通信与信息系统]