完全对称的P2P技术在高校远程教育中的应用研究

Research of applying P2P technology to distance education system of university

为了让P2P技术能够在高校远程教育中等到更好的应用,提出了完全对称结构的P2P体系结构。通过大量的调查研究,分析了传统的主从结构的P2P体系结构存在的问题,包括性能上的瓶颈和管理上的局限性。在此基础上,提出了完全对称结构的P2P体系结构,并设计和构建主从结构的P2P体系结构和完全对称结构的P2P体系结构算法模型。在建立算法模型后,进行了大量的模拟测试。通过效果对比,验证了完全对称的P2P体系结构不仅进一步提高资源搜索效率和数据传输效率,还能大幅度提高整个系统的高可用性,更重要是能让远程教育系统的处理能力进行线性扩展。

To apply P2P to university distance education system better,a symmetric P2P architecture is presented.The traditional P2P architecture is master-standby.Firstly,by investigation,the problem of master-standby P2P architecture is analyzed,there are performance and management bottle neck in this traditional P2P architecture.Secondly,based on the analysis,a symmetric P2P archi-tecture is presented.And the simulation systems for master-standby P2P architecture and symmetric P2P architecture are constructed.Finally,testing are done on the simulation systems,by statistics,it proved that symmetric P2P architecture is better than master-standby P2P architecture.The most important is that symmetric P2P architecture can make the system linear be upgraded.