NDLI: Optimal Transmission of VLC System in the Presence of LED Nonlinearity and APD Module Saturation

Please wait, while we are loading the content...

Optimal Transmission of VLC System in the Presence of LED Nonlinearity and APD Module Saturation

Content Provider	Directory of Open Access Journals (DOAJ)
Author	Chao Li Meijun Gao Zhengyuan Xu
Abstract	We address the optimal transmission of LED-based visible light communication (VLC) system using direct current biased optical orthogonal frequency division multiplexing (DCO-OFDM) modulation and avalanche photodiode (APD) receiver. The peak-to-average-power ratio (PAPR) characteristic of O-OFDM signal is studied, which reveals that the careful setting of transmission parameters is necessary for O-OFDM signal with high PAPR to avoid the severe nonlinear distortion. We further experimentally investigate the nonlinear distortion caused by the LED clipping and APD module saturation, and define a modified term called signal-to-noise and distortion ratio (SNDR) to measure the influence of nonlinear distortion on system performance. The derived explicit expression of SNDR shows that the performance depends on the transmission parameters of both direct current bias Vdc and peak-to-peak voltage Vpp. Meanwhile the sequential quadratic programming algorithm is applied to maximize SNDR and obtain the optimal transmission parameters. The optimal transmission of the nonlinear LED-VLC system is achieved via both simulations and experiments.
Related Links	https://ieeexplore.ieee.org/document/8470921/
e-ISSN	19430655
DOI	10.1109/JPHOT.2018.2871148
Journal	IEEE Photonics Journal
Issue Number	5
Volume Number	10
Language	English
Publisher	IEEE
Publisher Date	2018-01-01
Publisher Place	United States
Access Restriction	Open
Subject Keyword	Applied Optics. Photonics Optics. Light Visible Light Communication (vlc) Optical Orthogonal Frequency Division Multiplexing (o-ofdm) Light-emitting Diode (led) Nonlinearity Avalanche Photodiode (apd) Module Saturation Signal-to-noise and Distortion Ratio (sndr) Optimization
Content Type	Text
Resource Type	Article

Central Library (ISO-9001:2015 Certified)
Indian Institute of Technology Kharagpur
Kharagpur, West Bengal, India | PIN - 721302

See location in the Map
03222 282435
Mail: support@ndl.gov.in

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in