Performance evaluation of DS/CDMA communications systems modulated with π/2-shift BPSK over multipath Rayleigh fading channels

被引：0

作者：

Galib, MMA ^{[1
]}

Yamazato, T

Katayama, M

Ogawa, A

机构：

[1] Nagoya Univ, Grad Sch Engn, Dept Informat Elect, Nagoya, Aichi 4648603, Japan

[2] Nagoya Univ, Ctr Informat Media Studies, Nagoya, Aichi 4648603, Japan

来源：

IEICE TRANSACTIONS ON FUNDAMENTALS OF ELECTRONICS COMMUNICATIONS AND COMPUTER SCIENCES | 1998年 / E81A卷 / 11期

关键词：

pi/2-shift BPSK; DS/SS/CDMA; soft/hard-limiter; out-of-band power; spectral efficiency; RAKE receiver;

D O I：

暂无

中图分类号：

TP3 [计算技术、计算机技术];

学科分类号：

0812 ;

摘要：

In mobile communications, power is a very important factor and nonlinear amplification of power amplifiers cannot be avoided due to their high power efficiency. This article presents the performance of pi/2-shift BPSK modulation scheme used in DS/SS/CDMA wireless communications over multipath Rayleigh fading channel and compares the performance with the performance of conventional BPSK and offset QPSK CDMA systems. The performance parameters: Out-of-Band power, average Bit Error Rate (BER) and Spectral Efficiency have been evaluated. In order to obtain improved performance on fading channels, a RAKE receiver has been employed. Finally it is shown that pi/2-shift BPSK outperforms conventional BPSK and offset QPSK in the presence of nonlinear amplification.

引用

页码：2304 / 2310

页数：7