عبدالستار محمد احمد حميد الجبوري
  • PERFORMANCE EVALUATION OF MC-CDMA SYSTEM OVER RAYLEIGH FADING CHANNEL
  • Multi Carrier Code Division Multiple Access (MC-CDMA) isa well known techniquefor highs peed wireless
    data transmission .Two advanced technologywas included in the MC-CDMA structure, such as orthogonal
    frequency division multiplex(OFDM) and the code division multiple access (CDMA),so that it benefits from
    the robustness of OFDM against multipath environment and from the capability of
    multiusermultiplexingservices that is achieved via (CDMA) system. MC-CDMA is a multicarrier spread
    spectrum system which is classified as the candidate scheme for future mobile radio systems.In this
    paperMC-CDMA system, with Rayleigh fading channel and 16QAM array modulation, was simulatedto
    investigate the effects of different parameters on the system performance, such as processing gain; number
    of paths; number of users;interleaving;and coding ratio.MC-CDMA performances can be considerably
    improved by proper selection of these parameters. As expected, results shows that MC-CDMA has a better
    performance overCDMA system.