摘要： In order to satisfy diverse quality of service in the heterogeneous P2P streaming systems, by making use of the advantages of network coding, a P2P streaming network coding and data scheduling method based on Fine Granularity Scalability(FGS) is proposed. By network coding grading and node rank management, it makes the heterogeneous nodes operate cooperatively with each other, and achieves the distributed data schedule strategy in unstructured P2P system. Simulation results demonstrate that the proposed method is capable of maintaining playing continuity degree close to 1.0 and has noticeable advantages over conventional scheduling method, especially under particular conditions such as low access bandwidth, small buffer and playback time delay and so on.

关键词: heterogeneous network, P2P network, streaming media, Fine Granularity Scalability(FGS) coding, network coding, data schedule

Abstract: In order to satisfy diverse quality of service in the heterogeneous P2P streaming systems, by making use of the advantages of network coding, a P2P streaming network coding and data scheduling method based on Fine Granularity Scalability(FGS) is proposed. By network coding grading and node rank management, it makes the heterogeneous nodes operate cooperatively with each other, and achieves the distributed data schedule strategy in unstructured P2P system. Simulation results demonstrate that the proposed method is capable of maintaining playing continuity degree close to 1.0 and has noticeable advantages over conventional scheduling method, especially under particular conditions such as low access bandwidth, small buffer and playback time delay and so on.

Key words: heterogeneous network, P2P network, streaming media, Fine Granularity Scalability(FGS) coding, network coding, data schedule

中图分类号: 

• TP393