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International Journal of Scientific and Engineering Research
ISSN Online 2229-5518
ISSN Print: 2229-5518 7    
Website: http://www.ijser.org
scirp IJSER >> Volume 2, Issue 7, July 2011 Edition
Data Aggregation and Query Processing in WSN
Full Text(PDF, 3000)  PP.  
Author(s)
Ayoni Mukherjee, Sanjit Setua
KEYWORDS
aggregation, base station(BS), Clusters , Cluster head (CH), MAX, nodes , query ,WSN.
ABSTRACT
A wireless sensor network (WSN) has a wide range of important applications such as remote environment monitoring , target tracking etc. This has been enabled by the availability of sensors that are smaller, cheaper and intelligent. These sensor nodes are equipped with wireless interfaces with which they can communicate with one another to form a network. The design of a WSN depends significantly on the application, and it considers factors like the environment, the application's design objectives, cost, hardware and system constraints. The goal of our work is to present a comprehensive approach of cluster based data aggregation and processing of various aggregation queries in WSN. The aggregation operations in WSN is an attractive research topic now -a- days. We have considered variety of queries involving aggregate functions and proposed an algorithm to calculate the 'MAX' aggregate function .Our algorithm successfully eliminates the limitations of existing algorithms to perform the same operation. We have used temperature sensing application for this purpose.
References
[1] Yick Jennifer, Mukherjee Biswanath, Ghosal Dipak :“Wireless sensor network survey “,Computer Networks 52 (2008) 2292–2330(science direct) ,2008.

[2] Watfa Mohamed, Daher William Al Azar Hisham : “A Sensor Network Data Aggregation Technique”, International Journal of Computer Theory Engineering, Vol. 1, No. 1, April 2009.

[3] Meliou Alexandra, Guestrin Carlos, and Hellerstein Joseph, ""Approximating Sensor Network Queries Using In-Network Summaries”, Information Processing in Sensor Networks (IPSN,2009).

[4] Fasoloy Elena , Rossiy Michele, Widmer J¨org Zorziy Michele:” In-network Aggregation Techniques for Wireless Sensor Networks: A Survey “ , IEEE Wireless Communications, Vol. 14, No. 2, April 2007, pp. 70-87.

[5] Prabh Shashi :“ Data aggregation and data dissemination in Wireless Sensor networks. “ www.cs.virginia.edu/~ksp2q/publications 158

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