A Review on the Performance of Caching Algorithms for Video Streaming Services in IPTV
نویسنده
چکیده
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. On-demand services are becoming more popular in the present situation in which the users want to observe the offered content when and where it suits them best. As, multicast can no longer depend upon for such services, the traffic over certain parts of the IPTV network would increase drastically unless caches are implemented in strategic places within it. This paper focuses on the on demand services in IPTV. A thorough survey on various caching algorithms and other techniques which offers IPTV on demand services is presented in this paper. Keywords--Internet Protocol Televisions (IPTV), Caching algorithms, Video on Demand (VoD),
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