A Review: Miller Encoder For Outdoor Mimo Vlc Application

Review Article
Rakesh Gharat and Thorat S. S
VLC, MIMO, LED, Manchester code, miller code

Visible Light Communication (VLC) is an emerging field in Optical Wireless Communication (OWC) which utilizes the superior modulation bandwidth of Light Emitting Diodes (LEDs) to transmit data. This paper presents a Visible Light Communication (VLC) system architecture suitable for Multiple Input Multiple Output (MIMO) outdoor applications. VLC usages in outdoor scenarios like traffic system, smart lighting systems and public illumination systems trends to increase the usage of LEDs. The ramping up of LED technology brought new opportunities for energy savings and reduced maintenance cost in illumination systems. This paper also addresses the issues regarding robust communication for short to medium distances using VLC. The presentation is focused on comparative analysis between RF communication, Infrared Communication, visible light communication and also the Manchester code, as a traditional code and the Miller code as a possible candidate for outdoor MIMO applications.