Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/104487
Title: Boosting the throughput of LED-camera VLC via composite light emission
Authors: Yang, Yanbing
Luo, Jun
Keywords: Collaborative Transmissions
Engineering::Computer science and engineering
Visible Light Communication
Issue Date: 2018
Source: Yang, Y., & Luo, J. (2018). Boosting the throughput of LED-camera VLC via composite light emission. IEEE INFOCOM 2018 - IEEE Conference on Computer Communications, 315-323. doi:10.1109/INFOCOM.2018.8486209
Abstract: LED-Camera Visible Light Communication (VLC) is gaining increasing attention, thanks to its readiness to be implemented with Commercial Off-The-Shelf devices and its potential to deliver pervasive data services indoors. Nevertheless, existing LED-Camera VLC systems employ mainly low-order modulations such as On-Off Keying (OOK) given the simplicity of their implementation, yet such rudimentary modulations cannot yield a high throughput. In this paper, we investigate various opportunities of using a high-order modulation to boost the throughput of LED-Camera VLC systems, and we decide that Amplitude-Shift Keying (ASK) is the most suitable scheme given the limited operating frequency of such systems. However, directly driving an LED to emit different levels of luminance may suffer heavy distortions caused by the nonlinear behavior of LED. As a result, we innovatively propose to generate ASK using the composition of light emission. In other words, we digitally control the On-Off states of several groups of LED chips, so that their light emissions compose in the air to produce various ASK symbols. We build a prototype of this novel ASK-based VLC system and demonstrate its superior performance over existing systems: it achieves a rate of 2 kbps at a 1 m distance with only a single LED luminaire.
URI: https://hdl.handle.net/10356/104487
http://hdl.handle.net/10220/50014
DOI: 10.1109/INFOCOM.2018.8486209
Rights: © 2018 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works. The published version is available at: https://doi.org/10.1109/INFOCOM.2018.8486209
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:SCSE Conference Papers

Files in This Item:
File Description SizeFormat 
Boosting the Throughput of LED-Camera VLC.pdf278.19 kBAdobe PDFThumbnail
View/Open

Google ScholarTM

Check

Altmetric

Items in DR-NTU are protected by copyright, with all rights reserved, unless otherwise indicated.