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A Novel Index Modulation Dimension based on Filter Domain: Filter Shapes Index Modulation

Abstract : A novel domain for Index Modulation (IM) named "Filter Domain" is proposed. This new domain generalizes many existing modulations and IM domains. In addition, a novel scheme "Filter Shape Index Modulation" (FSIM) is proposed. This FSIM scheme allows a higher Spectral Efficiency (SE) gain than the time and frequency IM dimensions in Single-Input Single-Output (SISO) systems. In the FSIM system, the bitstream is mapped using an Amplitude Phase Modulation (APM) as QAM or PSK, and an index of a filter-shape c hanging a t the symbol rate. This filter s hape, b eing c hanged a t e ach symbol, enables a SE gain in SISO system without sacrificing a ny time or frequency resources. Compared to an equivalent 8QAM and 16QAM schemes and at the same SE, the FSIM with QPSK using 2 and 4 non-optimal filter s hapes a chieves a g ain o f 3.8 dB and 1.7 dB respectively at BER= 10 −4 , and this superiority is maintained in frequency selective fading channel compared to equivalent SISO-IM schemes. A low complexity detection scheme, approaching the maximum likelihood detector performance, is proposed along with a full performance characterization in terms of theoretical probability of filter i ndex e rror a nd B ER lower bound. Finally, FSIM can achieve better spectral and energy efficiencies w hen a fi lter ba nk an d an IS I ca ncellation technique are optimally designed.
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Contributor : Faouzi Bader <>
Submitted on : Wednesday, November 25, 2020 - 3:18:57 PM
Last modification on : Friday, January 8, 2021 - 3:40:51 AM


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  • HAL Id : hal-03023811, version 1


Majed Saad, Jacques Palicot, Faouzi Bader, Ali Chamas Al Ghouwayel, Hussein Hijazi. A Novel Index Modulation Dimension based on Filter Domain: Filter Shapes Index Modulation. IEEE Transactions on Communications, Institute of Electrical and Electronics Engineers, 2020. ⟨hal-03023811⟩



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