Video on demand service policies

摘要

The video on demand (VOD) service can be implemented in a variety of ways called service policies. This paper investigates the characteristics of three distinct service policies, namely, on demand single cast, on demand multicast and phase multicast. The performance of the different service policies are evaluated and it was found that the on demand single cast policy is suitable for specialised viewing while phase multicast and on demand multicast can be used for broadcast video.