Adaptive stream multicast for MPEG-4 FGS video in heterogeneous networks
Zhengguo Hu · Jisuanji gongcheng yu sheji · 2007
A novel adaptive stream multicast is proposed for MPEG-4 FGS video.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 liquid in pipelines,where the valves in pipelines adjust water flux to next pipeline.A modified method of com-puting PSNR,which considered the dependence of frames in one GOP,is used to evaluate the MPEG-4 FGS video transmission.Simulated results indicate that the scheme dispose the heterogeneity of networks and end-systems freely,with permanentstability,flexible scalability.