Performance of Two-Hop DS-CDMA Systems Using Amplify-and-Forward Protocol over Different Fading Channels
ELEKTRONIKA IR ELEKTROTECHNIKA, vol.22, no.1, pp.97-101, 2016 (SCI-Expanded, Scopus)
- Publication Type: Article / Article
- Volume: 22 Issue: 1
- Publication Date: 2016
- Doi Number: 10.5755/j01.eee.22.1.14116
- Journal Name: ELEKTRONIKA IR ELEKTROTECHNIKA
- Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
- Page Numbers: pp.97-101
- Keywords: Two-hop relaying, DS-CDMA, fading channels, amplify-and-forward
- Open Archive Collection: AVESIS Open Access Collection
- Erciyes University Affiliated: Yes
Abstract
This study analyses the performance of direct-equence code division multiple access (DS-CDMA) based on two-hop amplify-and-forward protocol over Weibull symmetric fading channels as well as Rayleigh/Rician, Rician/Rayleigh asymmetric fading phenomenas. We investigate the bit-error rate (BER) of the considered system using multiple relays by considering the effect of Weibull fading parameter and Rician K factor on the system performance. Our simulation results demonstrate the positive impacts of the value of fading parameter, Rician K factor and increasing number of relay nodes on BER performance. It is also confirmed that the Rician K factor is more effective on the system performance over Rician/Rayleigh fading channels in comparison with Rayleigh/Rician fading environment.