This paper proposes a generalized frequency division multiplexing (GFDM) modulation scheme that transmits a signal with different subcarrier bandwidths. In a receiver, the GFDM signal is demodulated by using a zero forcing (ZF) algorithm or a minimum mean square error (MMSE) algorithm and the BER performance of these algorithms is related to the condition number of a modulation matrix. This matrix can be optimized by adjusting the roll-off factor of subcarrier filters. It is shown that the performance of the proposed GFDM is about 0.02 dB better than that with a roll-off factor of 0 at a BER of 10^(-3) on an AWGN channel. On the other hand, on the multipath fading channels, the BER performance improves as the subcarrier bandwidth increases because of frequency diversity.


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    Titel :

    GFDM with Different Subcarrier Bandwidths


    Beteiligte:
    Akai, Yuta (Autor:in) / Enjoji, Yuka (Autor:in) / Sanada, Yukitoshi (Autor:in) / Kimura, Ryota (Autor:in) / Sawai, Ryo (Autor:in)


    Erscheinungsdatum :

    01.09.2016


    Format / Umfang :

    253782 byte




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



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