| 无线蜂窝系统功率控制算法 |
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| 引用本文： | 蔡敏,张焕水,王伟.无线蜂窝系统功率控制算法[J].自动化学报,2005,31(2):239-247. |
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| 作者姓名： | 蔡敏 张焕水 王伟 |
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| 作者单位： | 1.Research Center of Information and Control, Dalian University of Technology, Dalian 116023 |
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| 摘 要： | A novel distributed power control algorithm based on interference estimation is presented for wireless cellular system. A classical result of stochastic approximation is applied in this scheme. The power control algorithm is converted to seeking for the zero point problem of a certain function. In this distributed power algorithm, each user iteratively updates its power level by estimating the interference. It does not require any knowledge of the channel gains or state information of other users. Hence, the proposed algorithm is robust. It is proved that the algorithm converges to the optimal solution by stochastic approximation approach.
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| 关 键 词： | Stochastic approximation power control distributed algorithm |
| 收稿时间： | 2004-4-8 |
| 修稿时间： | 2004-7-23 |
Power Control Algorithm for Wireless Cellular System |
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| CAI Min,ZHANG Huan-Shui,WANG Wei.Power Control Algorithm for Wireless Cellular System[J].Acta Automatica Sinica,2005,31(2):239-247. |
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| Authors: | CAI Min ZHANG Huan-Shui WANG Wei |
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| Affiliation: | 1.Research Center of Information and Control, Dalian University of Technology, Dalian 116023 |
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| Abstract: | A novel distributed power control algorithm based on interference estimation is presented for wireless cellular system. A classical result of stochastic approximation is applied in this scheme. The power control algorithm is converted to seeking for the zero point problem of a certain function. In this distributed power algorithm, each user iteratively updates its power level by estimating the interference. It does not require any knowledge of the channel gains or state information of other users. Hence, the proposed algorithm is robust. It is proved that the algorithm converges to the optimal solution by stochastic approximation approach. |
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| Keywords: | Stochastic approximation power control distributed algorithm |
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