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| 非结构化P2P网络中减少冗余的搜索策略 | |
| 引用本文： | 王建勇,龚伏廷,李玉玲.非结构化P2P网络中减少冗余的搜索策略[J].计算机工程与应用,2010,46(36):122-125. |
| 作者姓名： | 王建勇 龚伏廷 李玉玲 |
| 作者单位： | 1. 华中农业大学,理学院,武汉,430070 2. 湖北生物科技职业学院,武汉,430070 3. 华中农业大学,楚天学院,武汉,430070 |
| 基金项目： | 华中农业大学"薪火"专项资助(No |
| 摘 要： | 在非结构化的P2P网络中，传统的洪泛式搜索造成大量的通信开销，严重制约了网络的可扩展性。根据标准洪泛机制在搜索的不同阶段表现出的不同特性，提出了一种基于TTL的分段搜索策略TTL-Search。TTL-Search把搜索过程分为两个阶段，各个阶段使用不同的策略转发消息。分析和实验结果表明，TTL-Search克服了洪泛搜索盲目性的特点，在一定程度上减少了查询带来的冗余开销，提高了查询成功率，能够高效地应用于非结构化P2P网络。 |
| 关 键 词： | 资源搜索 非结构化P2P网络 洪泛 冗余 |
| 收稿时间： | 2010-1-19 |
| 修稿时间： | 2010-5-14 |
Resource searching strategy of reducing redundancy in unstructured P2P network |
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| WANG Jian-yong,GONG Fu-ting,LI Yu-ling.Resource searching strategy of reducing redundancy in unstructured P2P network[J].Computer Engineering and Applications,2010,46(36):122-125. | |
| Authors: | WANG Jian-yong GONG Fu-ting LI Yu-ling |
| Affiliation: | 1.College of Sciences,Huazhong Agricultural University,Wuhan 430070,China;2.Hubei Vocational College of Bio-technology,Wuhan 430070,China;3.Chutian College,Huazhong Agricultural University,Wuhan 430070,China ) |
| Abstract: | In the unstructured P2P networkst,he flooding resource search method may cause much communication overhead,and severely constrains the scalability of network.In order to overcome this disadvantage,a new search strategy named TTL-Search is proposed.According to this strategyt,he searching process is divided into two stagesa,nd each stage adopts dif-ferent forwarding strategies.Analysis and experimental results show that,TTL-Search can overcome blindness of flooding search,and also can reduce redundancy overhead caused by query to some extend.So it can improve query success rate,and can be efficiently applied in the unstructured P2P network. |
| Keywords: | resource search unstructured P2P network flooding redundancy |
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