In-fight connectivity using LEDs as light source in visible light communication system

In-flight entertainment services can be supported by visible light communication (VLC) technology. Light-emitting diodes (LEDs) can be deployed in the VLC cells within an aircraft cabin to transmit data. It is possible to deploy VLC system within the defined enclosed location to share the information and also to avoid the possibility of eavesdropping and to eradicate interference. VLC supports high data rate access among multiple users inside aircraft cabin. The paper analyses about the VLC system used for transmitting data in the aircraft. The optical transmitter is the fixed reading light unit (LEDs) in each seat. High data rate and better signal-to-noise ratio (SNR) will be offered for each passenger through variable delta sigma modulation (vDSM) method combined with optical orthogonal frequency division multiplexing (OFDM) technique.