Chamchoy, Monchai

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Chamchoy, Monchai
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monchai.ch@kmitl.ac.th

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    Item type:Publication,
    Rayleigh performance of transmitter preceding based-multiuser detection for DS-CDMA over Rayleigh fading environments
    (2004-09-27)
    Changsuwan, Paitune
    ;
    Chamchoy, Monchai
    ;
    Rawiwan, Panarat
    ;
    Tangtisanon, Prakit
    This paper presents performance of joint transmitter preceding and multiuser detection at base station which improve the performance of DS/CDMA system. We considers a synchronous DS/CDMA system over Rayleigh fading environment, The transmitter preceding technique based on the channel decomposition is developed for several multiuser detection schemes (decorrelating, MMSE and parallel interference cancellation) which are employed to estimate the received signal. In addition, the performance of each multiuser detection is also presented to average bit error rate. Moreover, according to the result, it is found that the performance of the bit error rate and the near-far resistance are more effective than those of the receiver without the transmitter preceding technique. On the other hand, as the result, it is found that the performance of the bit error rate of the proposed system with diversity technique is more effective than those of the receiver without diversity combining.