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Cluster-based wireless sensor networks enable the efficient utilization of the limited energy resources of the deployed sensor nodes and hence prolong the node as well as network lifetime. Low Energy Adaptive Clustering Hierarchy (LEACH) is one of the most promising clustering protocol proposed for wireless sensor networks. This paper provides the energy utilization and lifetime analysis for cluster-based wireless sensor networks based upon LEACH protocol. Simulation results identify some important factors that induce unbalanced energy utilization between the sensor nodes and hence affect the network lifetime in these types of networks. These results highlight the need for a standardized, adaptive and distributed clustering technique that can increase the network lifetime by further balancing the energy utilization among sensor nodes.

Abdul Sattar Malik, Suhail A. Qureshi. (2010) Analyzing the Factors Affecting Network Lifetime for Cluster-based Wireless Sensor Networks, Pakistan Journal of Engineering and Applied Sciences, Volume 6, Issue 1.
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