Design of the Video Streaming Proxy in High-Speed Train

This paper considers the characteristics of high-speed train in precise timing information, such as arrival time, depending duration on station, traveling time and location of the train, to design a video proxy agent for VoD service in train. Based on the information of current active video streams, a burst pre-fetching scheme in video proxy agent is developed when the high-speed train depends on station. The video data required by the passengers in near future are burst downloaded to the video proxy to release the bandwidth constrain during the train traveling. The most of playback video data can be provided by the video proxy agent during the train traveling. The burst pre-fetching scheme increases the system performance and video playback quality. The simulation result reveals that the proposed scheme has better results in term of system capacity and the amount of missed deadline data compared with other schemes. Key works: High-speed train, video proxy, burst pre-fetch, video streaming, video on demand.