Evaluation of WSN Hierarchical Routing Protocols According to Energy Efficiency Heterogeneity Levels


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Abstract


The hierarchical routing protocols of WSN depend on clustering algorithm to reduce energy consumption. Theses protocols can increase scalability and lifetime of the network. Energy-efficient clustering protocols should be designed for adapt to the characteristic of energy efficiency heterogeneity of wireless sensor networks. In this paper, we evaluate hierarchical routing protocols by their sensitivity to energy heterogeneity and their effects on lifetime, number of cluster heads per rounds, performance, stability and instability period of the whole network. The obtained simulation results show the comparison between three routing protocols designed to cop to different levels of energy heterogeneity. The first protocol (called LEACH) designed for homogeneous network , the second one (SEP) designed for tow-level heterogeneous networks and the third and last one (DEEC) designed for multi-level heterogeneous networks. This paper shows which hierarchical routing protocol to use in sensor networks to cope with targeted performance measures taking into consideration application needs.
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Keywords


Wireless Sensor Networks; Clustering Algorithm; Heterogeneous Environment; Energy-Efficiency

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References


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