Layered priority encoded transmission for video streaming to heterogeneous clients

A scheme based on priority encoded transmission (PET), in which a movie is encoded and transmitted in parallel over multiple layers is presented in this paper. Clients can "tune in" to a suitable number of layers according to their bandwidth constraints, and begin watching the movie with commensurate delays. This scheme is extended to layered PET transmissions over multiple channels to support heterogeneous clients. The schemes can be implemented both using MDS block codes or the recently discovered fountain codes. For a movie of segments the layers and the channels will be having an algorithm to determine the optimal channel-to-layer mapping