White light-emitting diode (LED) consisting of red, green, blue, and amber chips (RGBA-LED) has recently been adopted as transmitter in visible light communication (VLC) systems. This paper proposed a reshaped orthogonal frequency division multiplexing (R- OFDM) scheme for RGBA-LED-based VLC systems. In the R- OFDM, the signal is adjusted by separation and biasing after clipping (BAC) operations for transmitting in RGBA-LED. Then, the biasing factor of BAC is derived according to the color mix ratio (CMR) of RGBA-LED. At the receiver, We develop a direct detection algorithm to recover the original data, and analyze its the theoretical bit error rate (BER). Furthermore, a lower bound of the BER is analyzed under high clipping ratio (CR) by using SNR upper bound. Finally, simulation results confirm our theoretical analysis and verify that R-OFDM outperforms the ACO-OFDM in term of BER.


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    Titel :

    R-OFDM Transmission Scheme for Visible Light Communication Using RGBA-LED


    Beteiligte:
    Kong, Lei (Autor:in) / Xu, Wei (Autor:in) / Zhang, Hua (Autor:in) / Zhao, Chunming (Autor:in)


    Erscheinungsdatum :

    01.09.2016


    Format / Umfang :

    244982 byte




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch





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