摘要
跨互联网服务提供商(ISP)的BitTorrent流量严重降低互联网的运行效率。结合BitTorrent协议和不同ISP之间的连接结构,提出了ISP感知的BitTorrent流量优化方案STracker。STracker由不同ISP中的Tracker代理构成,Tracker代理之间以对等联网方式连接,通过Tracker代理完成节点维护和ISP感知的邻居分配,从而降低冗余的跨ISP流量。分析和模拟结果表明,STracker能够在不增加内容下载时间的条件下,大量降低跨ISP流量。STracker能够有效降低ISP的运营成本,提高互联网的效率。
BitTorrent-based applications incur massive cross-ISP traffic which heavily decreases Internet efficiency.Taking into account BitTorrent protocol specifications and connection structure among different ISPs,this paper proposes an ISP-aware BitTorrent traffic optimization scheme which is called STracker.STracker is composed of tracker proxies in different ISPs.Tracker proxies are connected with a P2P protocol.Tracker proxies perform node management and biased neighbor allocation.Therefore,the cross-ISP traffic is reduced.Analysis and simulations show that STracker can efficiently reduce the cross-ISP traffic while the download time is not increased.STracker can reduce the operation cost of ISPs and improve the efficiency of Internet efficiently.
出处
《电子科技大学学报》
EI
CAS
CSCD
北大核心
2011年第4期582-586,共5页
Journal of University of Electronic Science and Technology of China
基金
国家自然科学基金(60873075)