摘要: 在基于数据驱动的P2P流媒体系统中,流媒体数据在参与应用的节点间进行分发,导致流媒体播放质量降低。针对流媒体数据块的分发调度问题,提出一种数据块分发调度策略,通过在调度中考虑节点所需数据块对其流媒体播放质量的影响,以期在合理利用节点有限带宽资源的同时,实现流媒体播放质量的优化。仿真实验结果表明,该策略在改善流媒体播放质量方面具有较明显的优势。
关键词:
对等网络,
流媒体,
数据驱动,
流媒体播放质量,
数据块,
调度策略
Abstract: The delivery manner of data blocks among nodes causes the streaming play quality of data-driven P2P streaming system. Aiming at the problem of data block delivery scheduling, a scheduling strategy is proposed, which takes it into account the impact of a desired block of a node to the streaming play quality of that node. The strategy guarantees the streaming play quality, while utilizes the bandwidth resource of nodes efficiently. Simulation experimental results show that the strategy has evident advantage in improving streaming media play quality.
Key words:
Peer-to-Peer(P2P) network,
streaming media,
data-driven,
streaming media play quality,
data block,
scheduling strategy
中图分类号:
黄国伟, 陈志. P2P流媒体数据块的优化调度策略[J]. 计算机工程, 2013, 39(2): 90-93.
HUANG Guo-Wei, CHEN Zhi. Optimized Scheduling Strategy for Data Block in P2P Streaming Media[J]. Computer Engineering, 2013, 39(2): 90-93.