Spectrally efficient multicarrier modulation system for visible light communication

• DOI: 10.11591/ijece.v9i2.pp1184-1190
• Publication Date: 2019-04-20T15:48:11Z
• Authors: T. Deepa; Harshita Mathur; K. A. Sunitha
• Keywords: Trellis modulation; Spectral Efficiency; Robustness; Modulation (music)

<span lang="EN-US">Visible Light Communication (VLC) has become an accolade to its radio frequency counterpart. In VLC system, orthogonal division multiplexing (OFDM) drawn much attention, because of simple equalization, high spectral efficiency, data rate and robustness intersymbol interference (ISI). Besides, there are emerging applications that ought be gotten with low latency reliability. To diminish power requirements no transmission capacity extension, Trellis coded modulation (TCM) is utilized as a part the framework in which free distance trellis diagram equivalent minimum between points constellation focuses partitioned subsets, augments coding gain up i.e. performance parameter viably. TCM together VLC-OFDM enhances execution reasonable frameworks. this paper, we propose OFDM based on planned exeuted for digitized frameworks by presenting delta sigma (DSM) considering channel. Simulation results show proposed offers incredible against noises nonlinear degradation.</span>