A Message Processing Method for Top-k Query for Traffic Reduction in Ad Hoc Networks

A Message Processing Method for Top-k Query for Traffic Reduction in Ad Hoc Networks
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Ad Hoc网络中减少流量的Top-k查询消息处理方法

DOI:
10.1109/mdm.2009.12
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发表时间:
2009
期刊:
2009 Tenth International Conference on Mobile Data Management: Systems, Services and Middleware
影响因子:
--
通讯作者:
S. Nishio
S. Nishio
中科院分区:
--
文献类型:
--
作者:
Ryo Hagihara;M. Shinohara;T. Hara;S. Nishio

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在自组织网络中,为了仅获取必要的数据项,每个移动的节点使用top-k查询来检索数据项是有效的,在top-k查询中,数据项通过特定属性的得分来排序,并且发出查询的移动的节点获取具有k个最高得分的数据项。在本文中,我们提出了一种用于top-k查询的消息处理方法,以减少流量并保持查询结果的准确性,即,保证了整个网络中得分最高的k个数据项被获取。当一个移动的节点发送查询和应答消息时,我们的方法可以用来减少包括在top-k结果中的数据项的候选,以防止不必要的数据传输。此外,如果移动的节点检测到无线电链路的断开,则它搜索替代路径以将应答消息发送到查询发布节点。我们目前的仿真结果来评估我们所提出的方法的性能。
In ad hoc networks, to acquire only necessary data items, it is effective that each mobile node retrieves data items using a top-k query, in which data items are ordered by the score of a particular attribute, and the query-issuing mobile node acquires data items with the k highest scores. In this paper, we propose a message processing method for a top-k query for reducing traffic and keeping the accuracy of the query result, i.e., guaranteeing that data items with the k highest scores in the entire network are acquired. When a mobile node transmits query and reply messages, our method can be used to reduce candidates of data items included in the top-k result to prevent unnecessary data transmissions. Moreover, if a mobile node detects a disconnection of a radio link, it searches for an alternative path to transmit the reply message to the query-issuing node. We present simulation results to evaluate the performance of our proposed method.
P2P网络中Top-k查询的查询处理机制
DOI: --
发表时间: 2005
期刊: Proc. of Int'1 Special Workshop on Databases for Next Generation Researchers (SWOD 2005)
影响因子: --
作者:
Matsunami;H.;Terada;T.;Nishio;S.
通讯作者: S.