Validation of multiple mobile elements based data gathering protocols for dynamic and static scenarios in Wireless Sensor Networks

WSNs consist of sensors with communication and sensing capabilities. Here authors have focused on data gathering techniques in energy constrained sensor network. This paper contains two data gathering techniques which uses multiple mobile elements meant for collecting data from sensor nodes. One is Mobile Element based Energy-Efficient Data Gathering with Tour Length-Constrained in WSNs (EEDG). Another is an Intelligent Agent-based Routing Structure for Mobile Sinks in WSNs (IAR). Both protocols performance is compared by taking statistics based on performance metrics. Through this paper authors have made an endeavour to validate these protocols in static and dynamic scenarios based on the performance metrics. Analysis is the clear evidence of the fact that protocols are exclusively designed for static WSN and not for the dynamic. With this comparative analysis authors have proved EEDG is superior to IAR as per as efficiency is concerned, at the same time it has some limitations like Idle listening of sensor nodes and also redundancy removal aspects are not considered. Based on this comparative analytical study authors are going to work on elimination of limitation of EEDG protocol to boost up its efficiency in future by increasing the lifespan of sensor network. (C) 2016 The Authors. Published by Elsevier B.V.