Transmitting video streaming over Internet is a challenging problem because the bandwidth of network varies all the time. Scalable coding seems to be an effective solution to resolve the bandwidth varying on the streaming video application over Internet. Though traditional scalable video coding schemes get scalability

the scalability is coarse and need much more memory expense. To obtain fine granularity scalability

the MPEG-4 video coding standard adopts FGS coding scheme. It permits bitstreams after being coded be truncated and transmitted arbitrarily with the available bandwidth. However

the fine granularity scalability of the FGS is obtained at sacrifice of coding efficiency. The reason that causes the FGS coding scheme's coding efficiency is

there exists much temporal redundancy on the enhancememt layer. In this paper

two MC FGS structure based on using motion compensation on the enhancement layer are developed to get higher coding efficiency. Both of them exploit the temporal redundancy of the enhancement layer. After comparing both structures

one is recommended by this paper. The experimental results prove that the performance of scheme presented by this paper is better than that of MPEG-4 FGS.