Date Added: May 2012
Due to the extensive adoption of broadband Internet services and recent progress in video technologies, Internet Protocol TeleVision (IPTV) is becoming more and more important. IPTV offers a wide variety of interesting services such as VOD (Video on Demand), PVR (Personal Video Recorder), game, shopping as well as live TV broadcast. To sustain a variety of interactive services of IPTV, more complicated software should be equipped for video streaming services. In particular, the performance of video streaming services in IPTV environments is improved by the popularity-based interval caching. An IPTV system is appropriate to provide on-demand services because of its native return channel and its capability to easily deal with each user individually.