Adaptive Stream Multicast for Video in Heterogeneous Networks

摘要

This study first proposes a novel adaptive stream multicast for MPEG-4 FGS video to meet these challenges. Based on the fine-granularity property of MPEG-4 FGS video coding technology, the scheme tries to delivery multimedia multicast service over the heterogeneous networks in a similar way as that to transport water in pipelines, where the valves in pipelines adjust water flux to next pipeline. A new method of computing PSNR is also first advanced to evaluate the MPEG-4 FGS video transmission. Simulated results indicate that the scheme could dispose the heterogeneity of networks and end-systems freely, with permanent stability, flexible scalability and unprejudiced fairness and TCP-friendliness.