Visible Light Communication System Architecture for Indoor Application Incorporating Forward Error Correction Code

Abstract

VLC (or visible light communication) has grown in popularity in recent years. For next-generation communication system upgrades, dependable data transmission is essential. As the number of VLC system users increases, so does the need for consistent, rapid, and minimally delayed data delivery. However, as more consumers demanded higher speeds, transmission errors also increased. The error correction code minimizes the overall system's data error to mitigate this effect. This study examines a design architecture for a visible light communication (VLC) transmission system that incorporates forward error correction code to improve error performances, suggesting its suitability as access points in 5G technology. The simulation uses version 17 of the Opti system. The proposed architecture employs the Reed Solomon code, a well-known forward error correction (FEC) channel encoding, to safeguard the baseband signal throughout its transmission over an optical channel containing all visible background sounds. An optical filter and equalizer purify an incoming optical signal by eliminating harmonic components introduced by the VLC channel and restoring signal balance. The data transmission has utilized a forward error-correcting channel encoding of RS code with a nonreturn to zero. The simulation modelled the white, spectral, red, yellow, green, and blue light to present various background sounds accessible via the VLC channel. The simulation results indicate that the system model obtains a typical level of zero-bit errors.