Title: Performance analysis of colour coded multiple access orthogonal frequency division multiplexing visible light communication system

Authors: R.S. Jim Godwin; K. Veena; D. Sriram Kumar

Addresses: Electronics and Communication Department, National Institute of Technology, Room No. 52, Topaz Hostel, Tiruchirappalli 620015, Tamil Nadu, India ' Electronics and Communication Department, National Institute of Technology, Room No. 158, Opal Hostel, Tiruchirappalli 620015, Tamil Nadu, India ' Electronics and Communication Department, National Institute of Technology, Tiruchirappalli 620015, Tamil Nadu, India

Abstract: Performance analysis of colour coded multiple access (CCMA) orthogonal frequency division multiplexing (OFDM) visible light communication (VLC) System is discussed in this paper. First, characteristics of optical OFDM are studied. Second, CCMA is achieved using three laser diodes (LD): red, green and blue LDs. Finally, OFDM-modulated signals are optically modulated with red, green and blue LDs (RGB LDs). Then these three optical signals are combined together to form white light which illuminates as well as provides high-speed data transmission. The performance of the proposed CCMA OFDM VLC system is studied using constellation diagrams, signals and spectrum comparisons. The system is simulated for the data rate of 10 Gbps.

Keywords: colour coded multiple access; high data rate; laser diodes; orthogonal frequency division multiplexing; red; green blue laser diodes; visible light communication.

DOI: 10.1504/IJIM.2017.085317

International Journal of Image Mining, 2017 Vol.2 No.3/4, pp.301 - 317

Received: 07 Jun 2016
Accepted: 28 Dec 2016

Published online: 21 Jul 2017 *

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