An optimization problem for replication in VoD service over broadband wireless Internet

Video on-demand service (VoDs) over broadband wireless Internet have become well-known and increasingly attractive to users. The huge number of users and the limited resources of media servers and wireless channels make VoDs more challenging to serve the users high quality of video streaming applications. In this paper, we introduce and analyze an optimization problem used for replication strategy in VoDs over broadband wireless Internet. The solution of this problem enables VoDs to distribute “hot” videos into all peers so as to: 1) minimize bandwidth consumption at the media servers and 2) minimize wasted bandwidth and utilize storage capacity at the peers. A particular example is shown to demonstrate the benefit of the proposed optimization solution.