【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。更多还原

【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.更多还原