CDMA系统中的自适应反向闭环功率控制

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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.

Key words： CDMA Power control Near-far problem Multipath fading Outage probability

Received: 26 October 1998

PACS:	TN914.5
	TN929.5

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	Ge Ling
	Wu Xinyu

Cite this article:

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

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http://jeit.ie.ac.cn/EN/ OR http://jeit.ie.ac.cn/EN/Y2000/V22/I6/898