Combined fuzzy-based power control with window-based transmission rate management in multimedia CDMA cellular systems

被引：4
|
作者：
Chen, Young-Long [1 ]
Wang, Jyu-Wei [2 ,5 ]
Lin, Yung-Sheng [3 ]
Wen, Jyh-Horng [4 ]
机构：
[1] Natl Taichung Inst Technol, Dept Comp Sci & Informat Engn, Taichung 404, Taiwan
[2] Asia Univ, Dept Photon & Commun Engn, Taichung, Taiwan
[3] Quanta Comp Inc, WCDMA Cellular Phones, Tao Yuan, Taiwan
[4] Tunghai Univ, Dept Elect Engn, Taichung 40704, Taiwan
[5] Asia Univ, Dept Comp & Commun Engn, Taichung, Taiwan
来源：
AEU-INTERNATIONAL JOURNAL OF ELECTRONICS AND COMMUNICATIONS | 2011年 / 65卷 / 04期
关键词：
QoS; Fuzzy-based; Window-based; Power control; CDMA; CONTROL ALGORITHM;
D O I：
10.1016/j.aeue.2010.04.009
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Power control and transmission rate management play vital roles in multimedia CDMA cellular systems. To support multimedia services in CDMA cellular systems, different quality of service (QoS) requirements, such as minimum transmission rate or bit energy to interference spectral density ratio, should be set for different services. In this paper, we propose a novel scheme which combines fuzzy-based power control with window-based transmission rate management for use in multimedia COMA cellular systems. We use window-based measurements to adjust transmission power by using fuzzy logic control (FLC) so that each service can maintain its signal-to-interference ratio (SIR). Simulation results show that the new proposed method outperforms the original SPC (selective power control) and LRPC (Lagrangian relaxation technique and power control) methods in various measurements, such as outage probability, average transmission rate, probability of unsuccessful transmission, and probability of changes in transmission rates. (C) 2010 Elsevier GmbH. All rights reserved.
引用
收藏
页码：377 / 383
页数：7
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