ADAPTIVE CLOSE-LOOP POWER CONTROL ON THE REVERSE LINK FOR CDMA SYSTEM

Ge Ling; Wu Xinyu

Volume 22 Issue 6

Nov. 2000

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Article Navigation > Journal of Electronics & Information Technology > 2000 > 22(6): 898-905

Ge Ling, Wu Xinyu. ADAPTIVE CLOSE-LOOP POWER CONTROL ON THE REVERSE LINK FOR CDMA SYSTEM[J]. Journal of Electronics & Information Technology, 2000, 22(6): 898-905.

Citation:

Ge Ling, Wu Xinyu. ADAPTIVE CLOSE-LOOP POWER CONTROL ON THE REVERSE LINK FOR CDMA SYSTEM[J]. Journal of Electronics & Information Technology, 2000, 22(6): 898-905.

Ge Ling, Wu Xinyu. ADAPTIVE CLOSE-LOOP POWER CONTROL ON THE REVERSE LINK FOR CDMA SYSTEM[J]. Journal of Electronics & Information Technology, 2000, 22(6): 898-905.

Citation:

Ge Ling, Wu Xinyu. ADAPTIVE CLOSE-LOOP POWER CONTROL ON THE REVERSE LINK FOR CDMA SYSTEM[J]. Journal of Electronics & Information Technology, 2000, 22(6): 898-905.

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ADAPTIVE CLOSE-LOOP POWER CONTROL ON THE REVERSE LINK FOR CDMA SYSTEM

Ge Ling,
Wu Xinyu

Received Date: 1998-10-26
Rev Recd Date: 1999-07-28
Publish Date: 2000-11-19

Abstract

Abstract

Power control is of paramount important to combat the near-far problem and achieve high system capacity in CDMA cellular system. In this paper, a Modified Neural Network (MNN) based power controller is proposed to smoothen out the fast fading and keep the received signal power from each user constant at the base station. Simulation results show that MNN power controller achieves better control performance and system capacity than fixedstep controller due to the inherent ability of MNN to identify the fast time-varying characteristic of inverse channel.

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References(1)

References

Savo Glisic, Branka Vucetic, Spread Spectrum CDMA Systems for Wireless Communications,Dedham, MA, Artech House, Inc., 1997, Ch.5, 211-262.[2]R. C. V. Macario, Cellular Radio Principles and Design, Great Britain, Antony Rowe Ltd, Second Edition, 1997, Ch2, 38-59.[3]Po-Pong Chang, Bor-chin Wang, Adaptive fuzzy power control for CDMA mobile systems, IEEE Trans. on Vehicular Technology, 1996, 45(2), 225-236.[4]Kaveh Pahlavan, A. H. Levesque, Wireless Information Networks, USA, John Wley Sons Inc.,1995.[5]Y. P. Zhang, Y. Hwang, Measurements and Statistical Modeling of 900 MHz Radio Propagation Channels for Microcelluar and Personal Communications in Tunnels, Wireless Personal Communications, Netherlands: Kluwer Academic Publishers, 1998, 27-39.[6]W. C. Jakes(Ed.), Microwave Mobile Communications, New York, NY, Wiley, 1974.[7]X. M. Gao, X. Z. Gao, J. M. A.Trankanen,S.J. Ovaska, Power control for mobile DS/CDMA system using ELMAN neural network controller, in Proc. IEEE 47th Vehicular Technology Conference, Phoenix, Arizona, USA, 1997, 750-754.

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