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浅谈P2P技术及其应用 总被引:2,自引:0,他引:2
在网络技术高速发展的今天,不断有新技术的涌现,P2P技术就是其中的一种。文章首先简要介绍了P2P技术的概念及其网络模型结构,然后对其各方面的应用进行了说明。 相似文献
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P2P技术在高校网络教育的应用研究 总被引:1,自引:0,他引:1
分析介绍了P2P技术及其特点,分析高等网络教育现状及存在的问题,通过P2P技术对高等教育的影响和应用;在此基础上,简单的对P2P技术在校园网络应用的未来展望。 相似文献
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介绍了P4P产生的原因,针对P2P,技术的带宽问题及其相对于运营商的弊端,对P4P与F2P进行了比较,提出了P4P改进的方法,分析了P4P的应用特点以及发展前景. 相似文献
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互联网的一个重要应用就是传输媒体文件,为人们提供休闲和娱乐。本文提出一种新型的"增强混合式P2P网络模型"以及私有的PSTP协议和运行机制,并将这项技术应用到网络媒体播放中,从而提高媒体播放缓冲的速度和播放质量。 相似文献
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提出了一个基于P2P的分布式工作流管理系统体系结构。系统中的数据和控制管理都是分布式的,因而系统中的各项功能都是在相关的对等体节点之间通过直接交流和交互完成。系统克服了各项性能瓶颈,具有可靠性高、适应性较强、扩展性强和更好的用户支持。 相似文献
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In P2P (Peer-to-Peer) networks,some malicious peers can impact on overall networks performance.One of the malicious behaviors of these peers is malicious packet dropping.In this paper,our focus is to detect and to exclude peers that misbehave by dropping some or all packets.Here,we propose a reputation-based mechanism for solving the problem efficiently.The proposed mechanism uses both direct reputation information and indirect reputation information to compute comprehensive reputation of a peer.At the same time,history reputation information is also taken into account to provide faults tolerance capability and we regulate the imprecision based on the fact that the cause of packet dropping can be complex.Finally,the peers with bad comprehensive reputation can be detected easily and then will be excluded from the network.In this way,our proposed mechanism improves the performance of P2P networks without increasing computational overhead. 相似文献
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PENG Hao LU Songnian LI Jianhua ZHANG Aixin ZHAO D an .Electronic Engineering Department Shanghai Jiao Tong University Shanghai China .School of Information Security Engineering 《武汉大学学报:自然科学英文版》2011,(5)
In P2P (Peer-to-Peer) networks,some malicious peers can impact on overall networks performance.One of the malicious behaviors of these peers is malicious packet dropping.In this paper,our focus is to detect and to exclude peers that misbehave by dropping some or all packets.Here,we propose a reputation-based mechanism for solving the problem efficiently.The proposed mechanism uses both direct reputation information and indirect reputation information to compute comprehensive reputation of a peer.At the same... 相似文献
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目前P2P覆盖网络应用十分广连,关于覆盖网的研究已成为当前网络技术研究领域的热点。关于覆盖网络相应的路由算法在不断发展和完善,先后提出了集中目录式的算法和分布式查找算法。针对基于DHT的覆盖网络算法进行介绍和分析,并指出该领城的最近研究趋势。 相似文献
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将D-S证据理论运用到P2P系统的全局信任模型中逐渐成为人们关注的焦点.然而,D-S证据理论作为信息融合的一种有效工具,其合成规则存在着一定的局限性.比较和分析了各种证据合成规则,并将这些证据合成规则应用到同一信任模型上,仿真和分析表明不同合成规则下的同一信任模型的成功交易率差异较大. 相似文献
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Content based full text search is a challenging problem in Peer to Peer (P2P) systems. A distributed P2P overlay network that supports semantic based content searches, called S-Peer, is proposed. Peers in this overlay are grouped based on the semantics of their data, and self organized as a semantic overlay network. To reduce overheads incurred by peer joining and leaving in a high dimensional overlay network, peers are constructed as a one dimensional semantic space that facilitates efficient routing. The results show the effectiveness, efficiency and scalability of the proposed system. 相似文献
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针对P2P网络应用模式中出现的问题,给出了一种新的P2P网络的代理协议,该协议不仅可以解决当前许多网络对P2P连接的限制问题,扩大了P2P网络的连接能力,而且能使更多节点通过网络进行数据交换. 相似文献
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首先分析了网络结构变化带来的问题,简述了协同式网络攻击和P2P,在此基础上提出了基于P2P的协同式网络攻击模型,并重点分析了系统最关键的部位:分布式智能专家系统。最后指出了模型在安全方面的缺陷,并提出了相应对策。 相似文献
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Load balancing is a critical issue in peer-to-peer networks. DHT (distributed hash tables) do not evenly partition the hash-function range, and some nodes get a larger portion of it. The loads of some nodes are as much as O(log n) times the average. In this paper, a low-cost, decentralized algorithm for ID allocation with complete knowledge in DHT-based system is proposed. It can adjust system load on nodes’ departure. It is proved that the ratio of longest arc to shortest arc is no more than 4 with high probability when network scale increases non-strictly. When network scale decreases from one stable state to another, algorithm can repair the unevenness of nodes distribution. The performance is analyzed in simulation. Simulating results show that updating messages only occupy a little of network bandwidth. 相似文献
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对等网络技术是近年来兴起的较新的网络技术,通过介绍对等网络的概念和与传统网络的区别,以P2P文件交换软件为例对对等网络的三种不同的结构进行了分析研究. 相似文献