Query based energy efficient clustering methods for wireless sensor networks

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2011
Koşar, Onur
In Wireless Sensor Networks, designing a low overhead routing protocol is crucial for prolonging network lifetime. Wireless sensor nodes depend on limited batteries and if they run out of battery, they cannot contribute to the sensing. There are lots of studies aimed at prolonging network lifetime. One of the methods to extend life time of the wireless sensor networks is clustering. In clustering approaches main aim is to prevent unnecessary messaging and decrease number of messages exchanged by aggregating messages. Clustering also contributes to prolong network life time by ruling the child node communications and therefore it decreases message loss caused by transmission collisions. Cluster heads in clusters schedule nodes for sending and receiving messages. In this thesis, a clustering approach based on queries disseminated by sinks is proposed. Two methods to prolong lifetime of sensor network by forming appropriate clusters and selecting suitable cluster heads is developed. Performance of the proposed methods is also evaluated with computer simulations.

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Citation Formats
O. Koşar, “Query based energy efficient clustering methods for wireless sensor networks,” M.S. - Master of Science, Middle East Technical University, 2011.