| OHQFS:一种非结构化P2P网络中数据查询搜索新策略 |
| |
| 引用本文： | 曾碧卿,吕西红,陈志刚.OHQFS:一种非结构化P2P网络中数据查询搜索新策略[J].小型微型计算机系统,2007,28(9):1572-1578. |
| |
| 作者姓名： | 曾碧卿 吕西红 陈志刚 |
| |
| 作者单位： | 1. 华南师范大学,南海校区,计算机工程系,广东,佛山,528225
2. 中南大学,信息科学与工程学院,湖南,长沙,410083 |
| |
| 摘 要： | 为了提高非结构化P2P网络中数据查询搜索的效率,提出一种新型的一跳查询与转发数据搜索新策略（OHQFS）,它是以非结构化P2P网络中的数据查询请求转发策略和非转发策略为基础,将它们整合、集成后得到的一种新策略.OHQFS策略中的查询源结点直接搜索其自身的所有邻居节点,并将查询请求转发给这些邻居节点,使得这些邻居节点再去搜索它们的相邻节点.该策略在数据查询搜索过程中无须维持一个很大的邻居节点信息集合,系统维护开销较小,通过本策略中固有的一步查询转发,使其邻居节点和邻居的邻居节点处于查询搜索范围内.网络仿真的实验结果表明,OHQFS策略相对于转发搜索策略而言,它提高了查询效率;而相对于非转发策略,它获得了较高的成功率.
|
| 关 键 词： | 非结构化P2P 超级节点 OHQFS策略 |
| 文章编号： | 1000-1220（2007）09-1572-07 |
| 修稿时间： | 2006-06-13 |
OHQFS: a New Policies of Data Query and Search on Unstructured P2P |
| |
| ZENG Bi-qing,LV Xi-hong,CHEN Zhi-gang.OHQFS: a New Policies of Data Query and Search on Unstructured P2P[J].Mini-micro Systems,2007,28(9):1572-1578. |
| |
| Authors: | ZENG Bi-qing LV Xi-hong CHEN Zhi-gang |
| |
| Affiliation: | 1.Department of Computer Engineering, Nanhai Campus, South China Normal University, Foshan 528225, China;2.College of Information Science and Engineering, Central South University, Changsha 410083, China |
| |
| Abstract: | Peer-to-Peer (P2P) has become an important architecture of the network computing environment and distributed processing system on high performance computing area. In order to improve the efficiency of the data querying and searching on unstructured P2P system, a new 1-Hop Querying and Forwarding Search policy (OHQFS) is proposed, which combiness the forwarding-based and non-forwarding policies to get their advantages while lowering their disadvantages. The basis idea and realization of OHQFS are introduced. The experimentations show that the new policy has query flexibility, low cost, query efficiency, and query satisfaction without a large state maintenance overhead. |
| |
| Keywords: | unstructured P2P super-peer OHQFS |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
