Convergence analysis of distributed fixed-step power control algorithm for cellular mobile systems

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題名:	Convergence analysis of distributed fixed-step power control algorithm for cellular mobile systems
作者:	Wen, JH (Wen, Jyh-Horng);Chen, YL (Chen, Young-Long);Wang, JW (Wang, Jyu-Wei)
貢獻者:	Department of Computer and Communication Engineering
關鍵詞:	stability;power control;CIR;step size;convergence rate;RADIO SYSTEMS;PERFORMANCE;FEEDBACK;UPLINK
日期:	2008-08
上傳時間:	2010-03-26 03:05:59 (UTC+0)
出版者:	Asia University
摘要:	Power control plays a vital role in the operation of cellular systems. It has been shown that a power control mechanism with distributed fixed-step control algorithm using a single bit can maintain the received carrier-to-interference ratio (CIR) within a desired range in long-term fading channels. However, as far as the short-term fading is concerned, whether such a power control algorithm remains convergent is not clear. In this work, a simple received CIR model is adopted to derive the condition that ensures system stability for short-term fading channels. The bounds of the received CIR are also obtained. Furthermore, the effects of the power control step size and the time required for convergence are also analyzed. Copyright (C) 2007 John Wiley & Sons, Ltd.
關聯:	WIRELESS COMMUNICATIONS & MOBILE COMPUTING, 8 (6): 715-731
顯示於類別:	[光電與通訊學系] 期刊論文

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