DS-CDMA system outer loop power control and improvement for multi-service

被引：2

作者：

Guan Mingxiang ^{[1
]}

Guo Qing ^{[1
]}

Li Xing ^{[2
]}

机构：

[1] Harbin Inst Technol, Sch Elect & Informat Technol, Harbin 150001, Peoples R China

[2] Huawei Technol Co Ltd, Shenzhen 518057, Peoples R China

来源：

JOURNAL OF SYSTEMS ENGINEERING AND ELECTRONICS | 2008年 / 19卷 / 03期

关键词：

DS-CDMA; outer loop power control; multi-service; performance;

D O I：

10.1016/S1004-4132(08)60106-1

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

When a new user accesses the CDMA system, the load will change drastically, and therefore, the advanced outer loop power control (OLPC) technology has to be adopted to enrich the target signal interference ratio (SIR) and improve the system performance. The existing problems about DS-CDMA outer loop power control for multi-service are introduced and the power control theoretical model is analyzed. System simulation is adopted on how to obtain the theoretical performance and parameter optimization of the power control algorithm. The OLPC algorithm is improved and the performance comparisons between the old algorithm and the improved algorithm are given. The results show good performance of the improved OLPC algorithm and prove the validity of the improved method for multi-service.

引用

页码：453 / 460

页数：8

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