宽带多媒体CDMA系统中的反向SRA功率控制算法
The backward SRA power control algorithm of wideband multimedia CDMA system
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摘要: 第三代移动通信系统设计要求支持多媒体通信。由于各种业务在接收端所要求的业务质量不同,这就要求系统应根据业务种类进行功率控制。文章通过功率等价概念的引入,研究了应用于宽带CDMA系统的SRA(Stepwise Removal Algorithm)功率控制算法,并通过算法仿真验证了该算法能在确保各种业务的业务质量的同时提高系统容量。
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关键词:
- 功率控制; 功率等价; 系统容量
Abstract: The design of Generation 3 mobile comrrmnication systern is required to support multimedia conimunication. Effective power control is necessary, as different QoS i.s required at reoeiving ends for each service. This paper presents SRA (Stepwise Removal Algorithrn) algorithm through introducing the idea of power equivalence. It is verified by ernulator analysis that this algorithrn can increase system capacity while ensuririg serving quality of each service. -
J. Zou, V. K. Bhargava, Optimized power allocation for mixed rate traffic in DS-CDMA cellular system, Electron. Let t., 1995, 31(22), 1902-1903.[2]J. Zander, Performance of opt imum transmitter power control in cellular radio systems, IEEE Trans. on Veh. Technol., 1992, VT-41(1), 57-62.[3]K.S. Gilhousen, M. Jacobs, On the capacity of cellular CDMA system, IEEE Trans. on Veh.Technol., 1991, VT-40(2), 303-312. -
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