Performance of optimum transmitter power control in CDMA cellular mobile systems

被引：46
|
作者：
Wu, Q [1 ]
机构：
[1] Qualcomm Inc, Corp Res & Dev Div, San Diego, CA 92121 USA
来源：
IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY | 1999年 / 48卷 / 02期
关键词：
CDMA; cellular mobile system; optimum power control; SIR balancing;
D O I：
10.1109/25.752582
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：
Efficient power control is of great importance in the design of high-capacity cellular radio systems, Optimum power control scheme (OPCS), in the sense that it minimizes the outage probability, has been fully investigated for frequency-division multiple-access/time-division multiple-access (FDMA/TDMA) cellular systems. In this paper, optimum power control theory is introduced to code-division multiple-access (CDMA) cellular systems to derive upper performance bounds for all types of transmitter power control schemes. Simulation results indicate that the OPCS will increase the CDMA system capacity by more than 1.9 dB over the perfect average power control scheme under IS-95-defined radio condition.
引用
收藏
页码：571 / 575
页数：5
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