• 中国计算机学会会刊
  • 中国科技核心期刊
  • 中文核心期刊

J4 ›› 2008, Vol. 30 ›› Issue (7): 36-39.

• 论文 • 上一篇    下一篇

一种DHT与洪泛相结合的P2P资源定位模型

梁妍 刘心松 邱元杰   

  • 出版日期:2008-07-01 发布日期:2010-05-22

  • Online:2008-07-01 Published:2010-05-22

摘要:

本文提出了一种基于站的DHT与洪泛相结合的P2P资源混合定位模型。在继承DHT优越性的基础上,本模型利用底层网络物理邻居拓扑关系,提高了DHT的健壮性和扩展性;同时,引入隐式洪泛树的洪泛定位机制改善了定位的灵活性。本文对这一模型作了介绍,并对性能作了简要分析。在实际应用中的测试及仿真结果表明,该模型能有效地减少定位过程中的通信开销和响应延迟,从而使其可以平滑适应网络规模的扩大。

关键词: DHT 洪泛 混合制 定位 站 隐式洪泛树

Abstract:

The paper proposes a station-based DOS resource mixed locating model combined with DHT and flooding. This model not only inherits the advantages of DHand scalability. Meanwhile the model introduces an  n implicit flooding tree to ameliorate the flexibility of locating. This paper details the mixed locating model and analyzes its performance. The test   nd simulation results show that this model can effectively reduce the communication cost and response delay. Consequently, it can smoothly adapt to the   extension of network.

Key words: DHT, flooding, mixed method, locating, station, latent flooding-tree