Performance Evaluation of a DS-CDMA System in a Rayleigh Fading Environment

作     者：M. A. Rahman M. M. Alam Md. Khalid Hossain Md. Khairul Islam Khan M. Nasir Uddin Md. Shahinuzzaman M. A. Rahman;M. M. Alam;Md. Khalid Hossain;Md. Khairul Islam;Khan M. Nasir Uddin;Md. Shahinuzzaman

作者机构：Department of Applied Physics Electronics & Communication Engineering Islamic University Kushtia Bangladesh Institute of Electronics Atomic Energy Research Establishment Savar Bangladesh 

出 版 物：《World Journal of Engineering and Technology》 (世界工程和技术（英文）)

年 卷 期：2016年第4卷第1期

页      面：1-9页

学科分类：0809[工学-电子科学与技术（可授工学、理学学位）] 08[工学] 

主　　题：DS-CDMA Rayleigh Fading Performance Analysis SNR BER ASK PSK FSK MATLAB AWGN 

摘      要：This work represents the performance evaluation of DS-CDMA in a Rayleigh fading environment. Performance analysis was carried out for a DS-CDMA system to evaluate the signal-to-noise ratio (SNR), signal-to-interference ratio (SIR) and bit error rate (BER) for different modulation schemes like ASK, PSK and FSK. Results were evaluated at different data rates and were presented in terms of SNR, SIR and BER. Computer simulation was also carried out by using Matlab to evaluate the signal waveforms with and without addition white Gaussian noise (AWGN). Butterworth filtered waveform was given to get better signal quality. Decoded output waveforms were also evaluated to confirm the simulation.