| 基于分层结构的P2P—SIP网络的研究 |
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| 引用本文： | 施苑英. 基于分层结构的P2P—SIP网络的研究[J]. 东北重型机械学院学报, 2009, 0(4): 336-340 |
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| 作者姓名： | 施苑英 |
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| 作者单位： | 西安邮电学院通信工程系,陕西西安710121 |
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| 摘 要： | 现有P2P-SIP架构提高了SIP网络的可靠性和可扩展性，但是要付出增加呼叫建立时延的代价。P2P-SIP系统对时延是敏感的，为了减少定位用户的平均响应时间，提出了一种基于超级节点的分层P2P-SIP网络架构。该系统根据节点和参考点之间的延迟对节点进行分组，将P2P—SIP网络划分为多个低层子网，各子网的超级节点再构成高层主干网。仿真结果表明该系统有效地降低了呼叫建立的平均时间。
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| 关 键 词： | P2P—SIP 分层 Chord 超级节点 |
Research on hierarchical P2P-SIP network |
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| SHI Yuan-ying. Research on hierarchical P2P-SIP network[J]. , 2009, 0(4): 336-340 |
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| Authors: | SHI Yuan-ying |
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| Affiliation: | SHI Yuan-ying (Department of Communication Engineering, Xi＇an Institute of Post and Telecommunications, Xi＇an, Shaanxi 710121, China) |
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| Abstract: | Existing P2P-SIP architectures improve the reliability and scalability of SIP network, which comes at the cost of increased call setup latency. The P2P-SIP system is sensitive to latency. To decrease the average response time of locating SIP user, a hierarchical P2P-SIP architecture based on super-nodes is proposed. This system divides the whole P2P-SIP network into many subnets by partitioning the nodes according to the latencies among these nodes and the landmarks. Then super-nodes in all subnets form the main net. Simulation results show that the system decreases the average call setup time greatly. |
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| Keywords: | P2P-SIP hierarchical Chord super-node |
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