寬帶多媒體CDMA系統(tǒng)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: 第三代移動通信系統(tǒng)設計要求支持多媒體通信。由于各種業(yè)務在接收端所要求的業(yè)務質量不同,這就要求系統(tǒng)應根據業(yè)務種類進行功率控制。文章通過功率等價概念的引入,研究了應用于寬帶CDMA系統(tǒng)的SRA(Stepwise Removal Algorithm)功率控制算法,并通過算法仿真驗證了該算法能在確保各種業(yè)務的業(yè)務質量的同時提高系統(tǒng)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.
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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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