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Wireless Sensor Networks (WSNs) contain numerous sensor nodes having limitedpower resource, which report sensed data to the Base Station (BS) that requireshigh energy usage. Many routing protocols have been proposed in this regardachieving energy efficiency in heterogeneous scenarios. However, every protocolis not suitable for heterogeneous WSNs. Efficiency of protocol degrades whilechanging the heterogeneity parameters. In this paper, we first test DistributedEnergy- Efficient Clustering (DEEC), Developed DEEC (DDEEC), Enhanced DEEC(EDEEC) and Threshold DEEC (TDEEC) under several different scenarios containinghigh level heterogeneity to low level heterogeneity. We observe thoroughlyregarding the performance based on stability period, network life time andthroughput. EDEEC and TDEEC perform better in all heterogeneous scenarioscontaining variable heterogeneity in terms of life time, however TDEEC is bestof all for the stability period of the network. However, the performance ofDEEC and DDEEC is highly effected by changing the heterogeneity parameters ofthe network.

On Performance Evaluation of Variants of DEEC in WSNs