Hybrid Frequency and Phase-Shift Keying Modulation for Energy Efficient Optical Wireless Systems

Ali Azim 1 Yannis Le Guennec 1 Laurent Ros 1
1 GIPSA-CICS - CICS
GIPSA-DIS - Département Images et Signal
Abstract : In this letter, we introduce direct-current (DC) offset hybrid frequency and phase-shift keying (DC-FPSK) modulation for Internet-of-Things based on optical wireless systems. For DC-FPSK, non-negative phase-modulated frequency waveforms are generated by combining frequency-shift keying (FSK), phase-shift keying (PSK) and a DC offset. We propose optimal maximum likelihood and sub-optimal receivers for DC-FPSK. The performance is appraised in terms of Euclidean distance, bit-error-rate (BER) performance and energy efficiency. We determine that combining 4-PSK with conventional DC-FSK is the optimal approach to enhance the energy and spectral efficiencies.
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Submitted on : Wednesday, November 27, 2019 - 9:04:15 PM
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Ali Azim, Yannis Le Guennec, Laurent Ros. Hybrid Frequency and Phase-Shift Keying Modulation for Energy Efficient Optical Wireless Systems. IEEE wireless communications letters, IEEE comsoc, 2019, pp.1-4. ⟨10.1109/LWC.2019.2954832⟩. ⟨hal-02383633⟩

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