Performance analysis of colour coded multiple access orthogonal frequency division multiplexing visible light communication system
by R.S. Jim Godwin; K. Veena; D. Sriram Kumar
International Journal of Image Mining (IJIM), Vol. 2, No. 3/4, 2017

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.

Online publication date: Fri, 21-Jul-2017

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