CHILD NODE, FATHER NODE AND BUFFER METHOD AND SYSTEM FOR MULTI-LAYER VIDEO NETWORK

摘要

Disclosed are a child node, father node and buffer method and system for a multi-layer video network. The multi-layer video network comprises at least one father node and a plurality of child nodes connected to the father node. The method comprises: collecting the user request arrival rate for each content in the content set of each child node; and based on the user request arrival rates, the storage capacity and uploading bandwidth of each child node and the size of each content, determining an optimal storage policy and an optimal uploading bandwidth allocation policy of each child node for each content. By means of the above disclosure, the technical solution disclosed by the present invention can fully conserve the network bandwidth and enable cooperation among buffer nodes; in addition, the technical solution is compatible with a heterogeneous network resource environment.