| 一种适合异构P2P网络的树形结构覆盖层 |
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| 引用本文： | 杨亚,宋俊德.一种适合异构P2P网络的树形结构覆盖层[J].高技术通讯,2009,19(3). |
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| 作者姓名： | 杨亚 宋俊德 |
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| 作者单位： | 北京邮电大学电子工程学院,北京,100876 |
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| 基金项目： | 国家高技术研究发展计划(863计划) |
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| 摘 要： | 为实现异构网络下的P2P应用,分析了具有异构融合特征的P2P网络的特点,提出了与之相适应的基于二叉树结构的覆盖层网络(TSOHEN)的设计方法.该方法根据节点的不同功能和属性将节点分为普通节点和混合节点两大类,并为每类节点设计了适应异构特征的路由表,对各类节点的加入和离开功能设计了相应的算法,并通过混合节点实现跨网的P2P查询操作.数值和仿真结果表明,该覆盖层设计能够有效地适应异构网络的环境,树形结构也没有使得根节点和叶节点的负荷产生明显的区别,各混合节点的负载也基本平衡.在大规模节点数量的情况下,TSOHEN的各种算法仍具有良好的收敛性.
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| 关 键 词： | 对等网络P2P 覆盖层网络 异构网络 |
TSOHEN: a tree structure overlay for heterogeneous P2P networks |
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| YangYa,Song Junde.TSOHEN: a tree structure overlay for heterogeneous P2P networks[J].High Technology Letters,2009,19(3). |
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| Authors: | YangYa Song Junde |
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| Affiliation: | Yang Ya,Song Junde (School of Electronic Engineering,Beijing University of Posts and Telecommunications,Beijing 100876) |
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| Abstract: | In order to apply P2P to heterogeneous networks, the paper proposes a new design method based on the tree structure overlay for heterogeneous networks (TSOHEN). The method classifies the nodes into two types according to their functions and attributes, the common nodes and the hybrid nodes, and designs a new routing table for each type of the nodes and new algorithms for the joining and leaving of the nodes. Through hybrid nodes, it implements the P2P searching function across different networks. The simula... |
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| Keywords: | peer-to-peer networks (P2P) overlay network heterogeneous network |
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