摘要
数据调度算法是P2P研究的热点问题.算法性能的优劣会直接影响到P2P系统的服务质量.通过分析P2P流媒体直播系统中节点能力和数据分片的优先级,提出了最少最小优先调度算法(LRFA).算法结合了现有的最少优先策略,将数据的稀缺性和时间特性作为重要因素,对节点能力进行了动态估算,最终实现了节点资源的充分利用.
Data scheduling algorithm is a very important issue in P2P research,which affects the quality of P2P media streaming.By means of analyzing node capability and data's priority in system,combined with Local Rarest First strategy,the Least Rarest First scheduling algorithm is given that used in P2P live media streaming.The data' rarest and emergence were considered as main factors,estimated the node' upload capability and realized efficiency utilization for node resources.
出处
《河南科技学院学报(自然科学版)》
2013年第1期86-90,共5页
Journal of Henan Institute of Science and Technology(Natural Science Edition)