A novel detection algorithm is proposed for multiuser detection (MUD) in uplink orthogonal frequency division multiplexing-interleave division multiple access (OFDM-IDMA) systems employing the expectation propagation (EP) algorithm. Compared to the conventional elementary signal estimator (ESE) detector, the proposed detector is capable of reducing the complexity with a favorable performance imposed with the accurate estimate of the posterior distribution. Then, the proposed detector can also obtain a considerable bit error rate (BER) performance in high order modulation with high transmission rate. Finally, we design a new scheme suitable for OFDM-IDMA in the presence of multiple carrier frequency offsets (CFOs). Our simulation results illustrate that the proposed scheme can effectively mitigate the influence of multiple CFOs.


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    Titel :

    EP-based Detection for Uplink OFDM-IDMA with Carrier Frequency Offsets


    Beteiligte:
    Chen, Yun (Autor:in) / Xiao, Yue (Autor:in)


    Erscheinungsdatum :

    01.05.2020


    Format / Umfang :

    289899 byte





    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch






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