PERFORMANCE OF DS-CDMA WITH IMPERFECT POWER-CONTROL OPERATING OVER A LOW EARTH ORBITING SATELLITE LINK

被引：46

作者：

VOJCIC, BR ^{[1
]}

PICKHOLTZ, RL ^{[1
]}

MILSTEIN, LB ^{[1
]}

机构：

[1] UNIV CALIF SAN DIEGO,DEPT ELECT & COMP ENGN,LA JOLLA,CA 92093

来源：

IEEE JOURNAL ON SELECTED AREAS IN COMMUNICATIONS | 1994年 / 12卷 / 04期

关键词：

D O I：

10.1109/49.286663

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：

The analysis of both performance and capacity of direct sequence CDMA in terrestrial cellular systems has been addressed in the technical literature. It has been suggested that CDMA be used as a multiple access method for satellite systems as well, in particular for multispot beam Low Earth Orbit Satellites (LEOS). One is tempted to argue that since CDMA works well on terrestrial links, it will nominally work as well on satellite links. However, because there are fundamental differences in the characteristics of the two channels, such as larger time delays from the mobile to the base station and smaller multipath delay spreads on the satellite channels, the performance of CDMA on satellite links cannot always be accurately predicted from its performance on terrestrial channels. In this paper, we analytically derive the performance of a CDMA system which operates over a low earth orbiting satellite channel. We incorporate such effects as imperfect power control and dual-order diversity to obtain the average probability of error of a single user.

引用

页码：560 / 567

页数：8