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Communication Dans Un Congrès Année : 2023

Turbo-DC-FPSK: a joint turbo coding and FPSK based modulation scheme adapted to optical wireless communications

Résumé

This letter proposes and analyzes a flexible and energy efficient technique for Optical Wireless Communication (OWC) systems. It involves the Direct Current-Frequency and Phase Shift Keying (DC-FPSK) modulation combined with a very low complexity convolutional code in a parallel scheme at the transmitter side, and a turbo-decoder at the receiver side, i.e. Bahl, Cocke, Jelinek and Raviv (BCJR) algorithm. It is an adaptation of the coplanar turbo-FSK technique developed for the long range low power Radio-Frequency (RF) context to the OWC requirements, to be compatible with Intensity-Modulation Direct Detection (IM-DD) techniques (real positive base-band waveforms including a Direct Current (DC) component instead of complex waveforms). Simulation results show that turbo-DC-FPSK can achieve around 5 dB energy gain over regular OWC state-of-the-art DC-FPSK modulation at a BER = 10-4. Using the number of linear modulation states as degrees of freedom, a flexibility in the desired balance between energy efficiency and spectral efficiency is achieved.
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Dates et versions

hal-04351195 , version 1 (18-12-2023)

Identifiants

  • HAL Id : hal-04351195 , version 1

Citer

Paul Miqueu, Muhammad Jehangir Khan, Yannis Le Guennec, Laurent Ros. Turbo-DC-FPSK: a joint turbo coding and FPSK based modulation scheme adapted to optical wireless communications. ICSPCS 2023 - 16th International Conference on Signal Processing and Communication System (ICSPCS), IEEE, Sep 2023, Bydgoszcz, Poland. ⟨hal-04351195⟩
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