Analysis of closed loop power control modes in UTRA-FDD under time varying multipath channels

被引：0
|
作者：
Gállego, JR [1 ]
Valdovinos, A [1 ]
Canales, M [1 ]
de Mingo, J [1 ]
机构：
[1] Univ Zaragoza, Ctr Politecn Super, Dept Ingn Elect & Comunicac, Zaragoza 50015, Spain
来源：
13TH IEEE INTERNATIONAL SYMPOSIUM ON PERSONAL, INDOOR AND MOBILE RADIO COMMUNICATIONS, VOL 1-5, PROCEEDINGS: SAILING THE WAVES OF THE WIRELESS OCEANS | 2002年
关键词：
power control; WCMA; UTRA-FDD;
D O I：
暂无
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
Fast power control is perhaps the most important aspect in a WCDMA system like UTRA-FDD. In this paper, closed loop power control procedures in UTRA-FDD are studied. A physical layer simulator, which has been implemented in the C language from the standard of the UTRA-FDD mode [1]-[4], has been the tool to get the. results included in this research. Simulations have been made for different mobile speeds (3, 30, 50 and 120Km/h) getting very different results. Power control gets worse quickly as the mobile speed grows. The implementation of an adaptive algorithm to predict the received power to try to improve the power control has been studied, but large improvements have not been obtained. Probability distribution of the power control error and influence of SIR estimation error have also been studied.
引用
收藏
页码：1616 / 1620
页数：5
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