In-phase and quadrature filter shape index modulation

HIGHLIGHTS

SUMMARY

    In this paper, in-phase and quadrature FSIM (IQ-FSIM) is proposed for further SE/EE enhancements as compared to the equivalent APM (e_g, QAM) and its predecessor FSIM that has proved its superiority over the existing state of art schemes with/without IM. To reach the SE in_(1) of IQ-FSIM using N filter shapes on each I/Q component and M-ary APM (denoted by N-IQ-FSIMMAPM), FSIM requires either to use: NM as QAM modulation order and the same number of filter shapes N (denoted by N-FSIM-(NM . . .

     

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