Maximum likelihood sequence detector for dicode pulse position modulation

Charitopoulos, Romanos; Sibley, Martin J.N.; Mather, Peter

doi:10.1049/iet-opt.2010.0011

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The Dicode Pulse Position Modulation (Dippm)1

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“…It was found that DiPPM can be considered as an alternative modulation technique for free space links as it outperforms PCM [15,17]. In order to improve the sensitivity of DiPPM, Reed Solomon (RS) codes or maximum likelihood sequence detection (MLSD) technique can be implemented [18,19].…”

Section: The Dicode Pulse Position Modulation (Dippm)mentioning

confidence: 99%

Visible light communication based system using high power LED and dicode pulse position modulation technique

Ahfayd

Farhat

Sibley

et al. 2017

2017 25th Telecommunication Forum (TELFOR)

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-In this paper a dicode pulse position modulation (DiPPM) technique has been successfully implemented for an indoor visible light communication (VLC) based system using an FPGA and a commercial high power white LED (30 W). A data rate of 13 Mbps has been achieved with a bit error rate (BER) <10 -11 at a free space distance of 1.2 m through a basic transceiver circuit, and 14.5 Mbps with 1.15x10 -6 of BER. Furthermore, a data rate of 13 Mbps has been successfully transmitted over a distance of 1.8 m with BER of 10 -5 . This proves that the application of DiPPM is a viable modulation system over free space communication links.

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