一种用于CDMA蜂窝系统的简单修正固定步长功率控制算法

2009 International Multimedia, Signal Processing and Communication Technologies Pub Date : 2009-03-14 DOI:10.1109/MSPCT.2009.5164193

M. Khan, P. Jain

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引用次数: 10

摘要

CDMA是一种限制干扰的多址系统。功率控制是减少同信道干扰的有效方法。因此，它可以提高系统容量。CDMA在上行链路中采用快速闭环功率控制，其中信干扰比(SIR)进行估计。本文提出了一种改进的固定步长功率控制算法，该算法可以提高CDMA系统的性能。与讨论和分析的其他功率控制算法相比，该算法具有更快的收敛速度和低停机概率，可以保持期望的SIR目标。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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A simple modified fixed step size power control algorithm for CDMA cellular systems

CDMA is interference limited multiple access system. Power control is an effective way to reduce co-channel interference. Consequently, it can improve the system capacity. CDMA employs fast closed-loop power control in uplink in which signal-to-interference ratio (SIR) is estimated. Transmitting power is adjusted by comparing estimated SIR with desired SIR. In this paper a modified fixed step power control algorithm has been proposed, which can improve the performance of a CDMA system. The proposed algorithm produced a faster convergence and low outage probability compared to other power control algorithms discussed and analyzed to maintain the desired SIR target.

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来源期刊

2009 International Multimedia, Signal Processing and Communication Technologies

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