Constant envelope orthogonal frequency division multiplexing (CE-OFDM) has been extensively studied due to its ability to achieve low peak-to-average power ratio (PAPR) waveforms. However, CE-OFDM may encounter the phase ambiguity problem when the modulation index is relatively large. To mitigate this issue, we incorporate companding technique into CE-OFDM successfully enhance the overall system performance. Moreover, companding scheme requires a balanced consideration between the degree of signal compression and phase ambiguity problem. Therefore, this paper derives the optimal parameter selection by analysing the signal-to-interference-plus-noise ratio (SINR) of the scheme. Simulation results demonstrate that the proposed approach enhances the performance of CE-OFDM effectively by reducing the phase ambiguity as well as minimizing the interference caused by the companding technique.


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    Titel :

    Companding Transform Assisted Constant Envelope OFDM


    Beteiligte:
    Huang, Chongda (Autor:in) / Dan, Lilin (Autor:in) / Xiao, Yue (Autor:in)


    Erscheinungsdatum :

    01.06.2023


    Format / Umfang :

    1364188 byte





    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



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