2nd International ICST Conference on Cognitive Radio Oriented Wireless Networks and Communications

Research Article

Improvement Model of MC-CDMA in Frequency Selective Fading Channel

  • @INPROCEEDINGS{10.1109/CROWNCOM.2007.4549854,
        author={Salih M. Salih and Ahmed A. Al-Lateef and Adnan  S. Suhail and Ahmed Nori},
        title={Improvement Model of MC-CDMA in Frequency Selective Fading Channel},
        proceedings={2nd International ICST Conference on Cognitive Radio Oriented Wireless Networks and Communications},
        publisher={IEEE},
        proceedings_a={CROWNCOM},
        year={2008},
        month={6},
        keywords={Bit Error Rate  Fast Fourier Transform  Multicarrier  Multipath  Selective Fading},
        doi={10.1109/CROWNCOM.2007.4549854}
    }
    
  • Salih M. Salih
    Ahmed A. Al-Lateef
    Adnan S. Suhail
    Ahmed Nori
    Year: 2008
    Improvement Model of MC-CDMA in Frequency Selective Fading Channel
    CROWNCOM
    IEEE
    DOI: 10.1109/CROWNCOM.2007.4549854
Salih M. Salih1,*, Ahmed A. Al-Lateef1,*, Adnan S. Suhail1,*, Ahmed Nori2,*
  • 1: Electrical Department, College of Engineering. University of Al-Anbar, Iraq
  • 2: College of Computer. University of Al-Anbar, Iraq
*Contact email: dr_salih_moh@yahoo.com, shemary2007@yahoo.com, crowdan2005@yahoo.com, albashiq75@yahoo.com

Abstract

In this paper, a phase matrix rotation model was proposed to improve the performance of Multicarrier-Code Division Multiple Access (MC-CDMA) based Fast Fourier Transform (FFT) under the Additive White Gaussian Noise (AWGN) channel and frequency selective fading channel. This model is used to reduce the effect of multipath fading .The results extracted by a computer simulation for a single user. Then it compared with the original technique for MC-CDMA based FFT for both systems. As a result, it can be seen from the proposed technique that a high performance improvement was obtained over the conventional MC-CDMA, were the Bit Error Rate (BER) is widely reduced under different channel characteristics for frequency selective fading and the AWGN channel.