PN codes versus chaotic codes: Performance comparison in a Gaussian approximated wideband CDMA system over Weibull fading channels

被引：6
|
作者：
Manoharan, Sangeetha [1 ]
Bhaskar, Vidhyacharan [1 ]
机构：
[1] SRM Univ, Dept Elect & Commun Engn, Kattankulathur 603203, Tamil Nadu, India
来源：
JOURNAL OF THE FRANKLIN INSTITUTE-ENGINEERING AND APPLIED MATHEMATICS | 2014年 / 351卷 / 06期
关键词：
CONVOLUTIONAL-CODES;
D O I：
10.1016/j.jfranklin.2014.03.007
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
The performance of a Wideband Code Division Multiple Access (W-CDMA) system using Pseudo Noise (PN) codes and chaotic codes in the presence of a Weibull fading channel is studied in this paper. The W-CDMA system modeled using Gaussian Approximation is analyzed on a Weibull fading channel which fades the amplitude of the transmitted signal randomly according to the Weibull distribution. Closed-form expressions for Bit Error Rate (BER) are derived and expressed in terms of Meijer's-G function. Performance measures in terms of BER are plotted versus Signal-to-Noise Ratio (SNR) for various values of fading severity, average fading power, and channel memory using PN and chaotic codes. Perforniance compaiison between PN codes and chaotic codes are also analyzed. (C) 2014 The Franklin Institute. Published by Elseier Ltd. All rights reserved.
引用
收藏
页码：3378 / 3404
页数：27
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