An Efficient top- k Query Processing in Distributed Wireless Sensor Networks
Journal Title: International Journal of Modern Engineering Research (IJMER) - Year 2014, Vol 4, Issue 9
Abstract
Wireless Sensor Networks (WSNs) are usually defined as large-scale, ad-hoc, multi-hop and wireless unpartitioned networks of homogeneous, small, static nodes deployed in an area of interest. Applications of sensor networks include monitoring volcano activity, building structures or natural habitat monitoring. In this paper, we present the problem of processing probabilistic top-k queries in a distributed wireless sensor networks. The basic problem in top-k query processing is that, a single method cannot be used as a solution to the problem of top-k query processing because there are many types of top-k query processing. The method has to be based on the situation, the classification and the type of database and the query model. Here we develop three algorithms, namely, sufficient set-based (SSB), necessary set-based (NSB), and boundary-based (BB), for inter- cluster query processing with bounded rounds of communications. Moreover, in responding to dynamic changes of data distribution in the overall network, we develop an adaptive algorithm that dynamically switches among the three proposed algorithms to minimize the transmission cost
Authors and Affiliations
Shaik Shabeena , , K Suresh Babu
Keywords
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