| Design of power controller in CDMA system with power and SIR error minimization |
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| 作者单位： | School of Mathematics Science，Qufu Normal University，Qufu Shandong 273165，China; School of Control Science and Engineering，Shandong University，Jinnan Shandong 250061，China; Shenzhen Graduate School of Harbin Institute of Technology，Shenzhen Guangdong 518055，China |
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| 摘 要： | In this paper, an uplink power control problem is considered for code division multiple access (CDMA) systems. A distributed algorithm is proposed based on linear quadratic optimal control theory. The proposed scheme minimizes the sum of the power and the error of signal-to-interference ratio (SIR). A power controller is designed by constructing an optimization problem of a stochastic linear quadratic type in Krein space and solving a Kalman filter problem.
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Design of power controller in CDMA system with power and SIR error minimization |
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| Authors: | Shulan KONG Huanshui ZHANG Zhaosheng ZHANG Hongxia WANG |
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| Abstract: | In this paper, an uplink power control problem is considered for code division multiple access (CDMA) systems. A distributed algorithm is proposed based on linear quadratic optimal control theory. The proposed scheme minimizes the sum of the power and the error of signal-to-interference ratio (SIR). A power controller is designed by constructing an optimization problem of a stochastic linear quadratic type in Krein space and solving a Kalman filter problem. |
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| Keywords: | Power control Kalman filter Code division multiple access (CDMA) |
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