Performance of signal detection with trellis code for downlink non-orthogonal multiple access visible light communication

Dwi Astharini; Muhamad Asvial; Dadang Gunawan

doi:10.1007/s11107-021-00957-5

Performance of signal detection with trellis code for downlink non-orthogonal multiple access visible light communication

Dwi Astharini, Muhamad Asvial, Dadang Gunawan

Department of Electrical Engineering

Research output: Contribution to journal › Article › peer-review

6 Citations (Scopus)

Abstract

This paper examines the implementation of multi-level amplitude modulation enforced by trellis coding in a downlink non-orthogonal multiple access channel for visible light communication (VLC). The non-orthogonal transmission is applied using superposition coding and successive interference cancellation with the support of a trellis decoder. The VLC is addressed by a channel model according to Lambert. Two levels of maximum likelihood signal detection are observed and compared, each for corresponding 4 and 8 trellis-coded modulation (TCM). The power ratio allotment is examined to investigate the system performance in the bit error rate. The simulation showed that a threshold of power ratio is needed to ensure good performance of signal detection. Further simulation with successive detection had shown effective results for up to three users.

Original language	English
Pages (from-to)	185-192
Number of pages	8
Journal	Photonic Network Communications
Volume	43
Issue number	3
DOIs	https://doi.org/10.1007/s11107-021-00957-5
Publication status	Published - 16 Feb 2022

Keywords

Maximum likelihood signal detection
NOMA
Power allocation
Trellis coding
VLC

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10.1007/s11107-021-00957-5

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title = "Performance of signal detection with trellis code for downlink non-orthogonal multiple access visible light communication",

abstract = "This paper examines the implementation of multi-level amplitude modulation enforced by trellis coding in a downlink non-orthogonal multiple access channel for visible light communication (VLC). The non-orthogonal transmission is applied using superposition coding and successive interference cancellation with the support of a trellis decoder. The VLC is addressed by a channel model according to Lambert. Two levels of maximum likelihood signal detection are observed and compared, each for corresponding 4 and 8 trellis-coded modulation (TCM). The power ratio allotment is examined to investigate the system performance in the bit error rate. The simulation showed that a threshold of power ratio is needed to ensure good performance of signal detection. Further simulation with successive detection had shown effective results for up to three users.",

keywords = "Maximum likelihood signal detection, NOMA, Power allocation, Trellis coding, VLC",

author = "Dwi Astharini and Muhamad Asvial and Dadang Gunawan",

note = "Funding Information: This article is part of research supported by Tadok Grant 2019 Universitas Indonesia, no. NKB-0157/UN2.R3.1/ HKP.05.00/2019. Publisher Copyright: {\textcopyright} 2022, The Author(s).",

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Performance of signal detection with trellis code for downlink non-orthogonal multiple access visible light communication

Abstract

Keywords

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