一个新的分散定步长功率控制算法
A New Distributed Fixed-Step Power Control Algorithm
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摘要: 功率控制是CDMA蜂窝移动通信系统的关键技术之一。该文考虑CDMA蜂窝移动系统，在假设系统信道增益时变、有界的情形下，把一个时变系统功率控制问题转化为具有确定信道增益功率控制问题。提出了一个分散定步长反馈调节功率控制算法，并证明了算法的收敛性。仿真结果表明算法是可行的。Abstract: Power control is one of the key technologies for CDMA cellular mobile systems. In this paper, a distributed fixed-step power control algorithm is presented for CDMA cellular mobile systems. The power control problem of time-varying systems is converted to the power control problem with fixed-channel gain under the assumption that the system channel gain is time-varying and bounded. Convergence of the algorithm proposed in this paper is proved. Some simulations are given to show the effecicency of the algorithm.
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Grandhi S, Vijayan R, Goodman D, Zander J. Centralized power control in cellular systems[J].IEEE Trans. on Vehicular Technology.1993, 42(4):466-[2]Zander J. Performance of optimum transmitter power control in cellular radio systems[J].IEEE Trans. Vehicular. Technology.1992, 41(1):57-[3]ONeill D, Chiang D, Julian D, Boyd S. Optimal resource allocation with Q.S constraints in wireless cellular and Ad hoc networks, Working Paper, EE. Dept., Stanford University, 2002.[4]Foschini G, Miljanic Z. A simple distributed autonomous power control algorithm and its convergence[J].IEEE Trans. on Vehicular Technology.1993, 42(4):641-[5]Chen S, Bambos N, Ppttie G. On distributed power control for radio networks, IEEE ICC94, Pittsburgh, USA, 1994: 1281.1285.[6]Wu Qiang. Performance of optimum transmitter power control in CDMA cellular mobile systems. IEEE Trans. on Vehicular. Technology, 1999, 48(2): 559.575.[7]Gudmundson M. Correlation model for shadow fading in a mobile radio systems[J].Elec. Letters.1991, 27(23):2145- -
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