抽象的

Video Transmission through Optical Wireless Communication

S.Ramesh, D.Suresh, A.SyedAlthaf Hussain,D.Tamilvanan1,M.P.Prabakaran

In this project we are going to design a low-cost of Video transmission through optical wireless communication. A 10Mbps optical transmission for free-space optical video data communication is presented. A channel-adaptive video streaming scheme which adjust video bit rate according to channel condition and transmit video through a hybrid free space optical (FSO) laser communication system. It has been shown that the proposed structure is suitable for uninterrupted transmission of videos over the hybrid wireless network with reduced packet delays and losses even when the received power is decreased due to weather conditions. By employing easy-to-find electronic components, the design consists of three main parts namely interface circuit, transmitter and receiver. The transmitter based on a simple inverter circuitry, drives a laser diode emitting 635nm visible red light. The incoming light signal is focused via 10-cm-diameter lens onto a photodiode SFH203. The received signal current from the photodiode is converted to signal voltage by a resistive-feedback trans-impedance amplifier, differentiator, and limiting amplifier and consequently delivered to the interface circuit. 10Mbps Ethernet link between two personal computers situated 100 meters apart has been successfully tested.