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International Journal of Optics
Volume 2016 (2016), Article ID 8969514, 9 pages
http://dx.doi.org/10.1155/2016/8969514
Research Article

A Comprehensive Lighting Configuration for Efficient Indoor Visible Light Communication Networks

1Advanced Optical Technology (AOT) Laboratory, Department of Electrical and Computer Engineering, Faculty of Engineering, Naresuan University, Muang, Phitsanulok, Thailand
2ECTI Association, Klong Luang, Pathumthani, Thailand
3Faculty of Electronics and Telecommunications, VNU University of Engineering and Technology, Hanoi, Vietnam

Received 8 September 2016; Accepted 17 October 2016

Academic Editor: Chen Chen

Copyright © 2016 Thai-Chien Bui et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Design of an efficient indoor visible light communication (VLC) system requires careful considerations on both illumination and communication aspects. Besides fundamental factors such as received power and signal-to-noise ratio (SNR) level, studies on mobility scenarios and link switching process must be done in order to achieve good communication link quality in such systems. In this paper, a comprehensive lighting configuration for efficient indoor VLC systems for supporting mobility and link switching with constraint on illumination, received power, and SNR is proposed. Full connectivity in mobility scenarios is required to make the system more practical. However, different from other literatures, our work highlights the significance of recognizing the main influences of field of view angle on the connectivity performance in the practical indoor scenarios. A flexible link switching initiation algorithm based on the consideration of relative received power with adaptive hysteresis margin is demonstrated. In this regard, we investigate the effect of the overlap area between two light sources with respect to the point view of the receiver on the link switching performance. The simulation results show that an indoor VLC system with sufficient illumination level and high communication link quality as well as full mobility and support link switching can be achieved using our approach.