New High Dimming Range M-FSK Demodulation Strategy for VLC Systems | IEEE Conference Publication | IEEE Xplore

New High Dimming Range M-FSK Demodulation Strategy for VLC Systems


Abstract:

This paper provides an alternative to digital filter based frequency detection for multi-frequency shift keying modulation (M-FSK) using field programmable gate array (FP...Show More

Abstract:

This paper provides an alternative to digital filter based frequency detection for multi-frequency shift keying modulation (M-FSK) using field programmable gate array (FPGA) architectures, by providing a hamming space autocorrelation based detector that outperforms the use of digital filters by consuming only 4% of an equivalent filter's logic resources and no DSP blocks at all, with a detection accuracy of 97% while being non-dependant on Hermitian symmetry, orthogonality or any other radio frequency (RF) signal condition. This detection method supports an inexpensive, reliable and accurate real time data demodulation strategy for flicker-free, high dimming range visible light communications (VLC) multi-user systems.
Date of Conference: 20-22 July 2020
Date Added to IEEE Xplore: 10 November 2020
ISBN Information:
Conference Location: Porto, Portugal

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