Author(s): Wen, JH (Wen, Jyh-Horng); Chen, YL (Chen, Young-Long); Wang, JW (Wang, Jyu-Wei)
Title: Convergence analysis of distributed fixed-step power control algorithm for cellular mobile systems
Source: WIRELESS COMMUNICATIONS & MOBILE COMPUTING, 8 (6): 715-731 AUG 2008
Language: English Document Type: Article
Author Keywords: stability; power control; CIR; step size; convergence rate KeyWords Plus: RADIO SYSTEMS; PERFORMANCE; FEEDBACK; UPLINK
Abstract: 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.
Addresses: [Wen, Jyh-Horng] Natl Chung Cheng Univ, Dept Elect Engn, Chiayi, Taiwan;
[Chen, Young-Long] Chien Kuo Technol Univ, Dept Elect Engn, Changhua, Taiwan; [Wang, Jyu-Wei] Asia Univ, Dept Comp & Commun Engn, Wufeng, Taichung County, Taiwan Reprint Address: Wen, JH, Natl Chung Cheng Univ, Dept Elect Engn, 168 Univ Rd, Chiayi, Taiwan.
E-mail Address: [email protected]
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Publisher: JOHN WILEY & SONS INC
Publisher Address: 111 RIVER ST, HOBOKEN, NJ 07030 USA ISSN: 1530-8669
DOI: 10.1002/wcm.514
29-char Source Abbrev.: WIREL COMMUN MOB COMPUT ISO Source Abbrev.: Wirel. Commun. Mob. Comput.
Source Item Page Count: 17
Subject Category: Computer Science, Information Systems; Engineering, Electrical &
Electronic; Telecommunications ISI Document Delivery No.: 338XI
