Loss-resilient on-demand media streaming using priority encoding
Cheng Huang, Ramaprabhu Janakiraman, Lihao Xu · 2004
A novel solution to the reliable multicast problem is the "digital fountain" approach, in which data is encoded with an erasure protection code before transmission, and receivers can recover the original data after receiving enough distinct encoded data. This solution, however, is not desirable for streaming media schemes in which it is preferable for parts of a movie to be available for consumption before the entire movie is received. Earlier work has proposed the use of Unequal Error Protection (UEP) codes, which permit some parts of the movie to be recovered before others. Unfortunately, a straightforward implementation of this solution can incur prohibitive coding complexity.