This paper studies an iterative multiuser detection for nonbinary LDPC coded multicarrier MFSK multiple access system to increase system performance under specific signal-to-noise ratio and data rate. When multiuser detection process is carried out, we test the soft outputs of channel decoder. When the soft output exceeds a threshold, the user is declared as a reliable user. For each signal, we count the number of reliable users on it. The reliable information iteratively updates the soft output calculation in the iterative demodulation and decoding process. Numerical results show that system performances are improved after multiuser detection over Rayleigh fading channel.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Soft Interference Cancellation for Nonbinary LDPC Coded Multicarrier MFSK Multiple Access Systems over Rayleigh Fading Channel


    Contributors:


    Publication date :

    2012-12-01


    Size :

    181065 byte




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English




    Nonbinary LDPC Coded Spatial Modulation

    Feng, Dan / Xu, Hengzhou / Zhang, Qiang et al. | IEEE | 2017


    A Nonbinary LDPC-Coded SCMA System with Optimized Codebook Design

    He, Qingli / Bai, Baoming / Feng, Dan et al. | IEEE | 2017


    Comparisons of coded modulations over a correlated Rayleigh-fading channel

    Arrive, F. / IEEE | British Library Conference Proceedings | 2000