Combined fuzzy-based rate management and selective power control for multimedia CDMA cellular systems

Tunghai University Institutional Repository > 工學院 > 電機工程學系所 > 期刊論文 > Item 310901/22266

jsp.display-item.identifier=請使用永久網址來引用或連結此文件: http://140.128.103.80:8080/handle/310901/22266

题名:	Combined fuzzy-based rate management and selective power control for multimedia CDMA cellular systems
作者:	Chen, Y.-L., Wang, J.-W., Lin, Y.-S., Wen, J.-H.
贡献者:	Department of Electrical Engineering, Tunghai University
关键词:	FLC;Power control;QoS;SIR;Transmission rate
日期:	2008
上传时间:	2013-05-15T09:14:21Z (UTC)
摘要:	Power control mechanisms are essential for CDMA wireless communication systems to enhance user capacity. In this paper, we propose a novel power control scheme which combines transmission rate management with power adjustments for multimedia CDMA cellular systems. In the proposed scheme, a fuzzy logic controller (FLC) is first used to dynamically infer a suitable transmission rate for each service. Then a selective power control (SPC) scheme is used to adjust the transmission power for each service in order to maintain an acceptable signal-to-interference ratio (SIR). Numerical results show that the proposed scheme outperforms the original SPC and the Lagrangian relaxation technique and power control (LRPC) methods in outage probability, average transmission rate, probability of unsuccessful transmission, and probability of changes in transmission rates. ? 2007 Springer Science+Business Media, LLC.
關聯:	Wireless Personal Communications 46 (3) , pp. 269-284
显示于类别:	[電機工程學系所] 期刊論文

文件中的档案:

档案	大小	格式	浏览次数
index.html	0Kb	HTML	341	检视/开启

在THUIR中所有的数据项都受到原著作权保护.