Performance of Two-Hop DS-CDMA Systems Using Amplify-and-Forward Protocol over Different Fading Channels


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KAPUCU N. , BİLİM M. , DEVELİ I.

ELEKTRONIKA IR ELEKTROTECHNIKA, cilt.22, ss.97-101, 2016 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 22 Konu: 1
  • Basım Tarihi: 2016
  • Doi Numarası: 10.5755/j01.eee.22.1.14116
  • Dergi Adı: ELEKTRONIKA IR ELEKTROTECHNIKA
  • Sayfa Sayıları: ss.97-101

Özet

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.