Signal design and system operation of GlobalstarTM versus IS‐95 CDMA – similarities and differences

被引：0
|
作者：
Leonard Schiff
A. Chockalingam
机构：
[1] Qualcomm,Department of Electrical Communication Engineering
[2] Inc.,undefined
[3] Indian Institute of Science,undefined
来源：
Wireless Networks | 2000年 / 6卷
关键词：
Power Control; Frame Error Rate; Rake Receiver; User Terminal; Forward Link;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The GlobalstarTM system provides telephone and data services to and from mobile and fixed users in the area between ±70 degrees latitude. Connection between user terminals and the PSTN is established through fixed terrestrial gateways via a constellation of low earth orbiting (LEO) satellites. Globalstar uses an extension of the IS‐95 CDMA standard that is used in terrestrial digital cellular systems. The LEO satellite link is sufficiently different from the terrestrial cellular link that certain departures from IS‐95 were needed both in signal design as well as in system operation. This paper describes some of the similarities and differences of Globalstar air interface versus IS‐95.
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页码：47 / 57
页数：10
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