A review on variant clustering designs in heterogeneous WSNs

In last decade researchers have a growing attention in domain of Wireless Sensor Networks (WSNs) due to numerous increasing automated industry and battle field applications. WSNs comprises of hundreds or even thousands of unsystematically deployed energy lacking sensor units. These sensors are aimed to transfer data from the field to distant Base Station (BS). This operation necessitate excessive energy. Minimizing energy expenditure and spreading WSN lifetime are prodigious tasks. Development of energy saving routing mechanism is one of the main issues in WSNs. In practical scenario almost all the WSNs are heterogenous or become heterogenous after small life span. Practically efficiency of every protocol changes with diverse heterogeneity environment. There is a dire need for testing of routing protocols underling varying heterogeneous parameters to cope with the practical scenario problems. In this paper performance of DEEC (Distributed Energy-Efficient Clustering), DDEEC (Developed DEEC), TDEEC (Threshold DEEC) and BEENISH (Balanced Energy Efficient Network Integrated Super Heterogenous) are evaluated with respect to varying heterogeneity metrics. Testing shows the variable behaviour of protocols with changing environment. However BEENISH performs the best in all cases and performance is sustained in varying heterogeneous scenarios.