| 摘要 |
Combining push and pull protocols, including the steps of pushing approximately a minimal decodable set of erasure-coded fragments to an assembling device, determining the fragment loss at the assembling device, and pulling additional erasure-coded fragments, using a fragment pull protocol, to compensate for the fragment loss. Optionally, the system includes a CDN streaming server and a fractional-storage CDN server, both storing unique erasure-coded fragments associated with segments of streaming content. The CDN streaming server pushes streams of fragments to a plurality of assembling devices, and the fractional-storage CDN server provides fragments associated with recently pushed segments in response to fragment pull protocol requests by the assembling devices.
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