Patent ID: 8473998
Filing Date: 2013-06-25
Classification: H04L,H04N

Abstract:
1. A method of network coding comprising: partitioning, at a network source, source content into a base layer and one or more refinement layers, wherein the base layer provides a lowest resolution associated with the source content and the one or more refinement layers provide a respective one or more resolutions associated with the source content that are at respective higher resolutions than the base layer, wherein the one or more refinement layers are at a respective one or more progressively higher resolutions; receiving, at said network source, a respective one or more push-back messages from one or more network destination receivers; computing, at said network source, a network code involving said base layer and said one or more refinement layers for at least one of said one or more network destination receivers, wherein said network code comprises a random linear network code, said random linear network code comprising random linear combinations of at least a portion of said base layer and zero or more of said refinement layers; and transmitting, by said network source, said network code to said one or more network destination receivers in accordance with said push-back messages.