TOPSIS optimized Dual-Hop Routing Protocol for Homogeneous Wireless Sensor Networks with Grid-Based Clustering

Abstract

Wireless Sensor Networks (WSNs) is developing as a noteworthy innovation due to its various applications. WSNs comprise many Sensor Nodes (SN) to accumulate the data from physical environment. Every SN is powered by a battery and has both computing and communication capabilities. Because of limited resources, mainly insufficient battery power, there is a need to save the energy for prolonging network’s lifetime. Clustering of SN is among the efficacious techniques that are used to overcome the energy consumption problem in WSNs. In the work proposed here, an optimized dual-hop routing protocol with grid clustering mechanism is presented. This is done by dividing the network field into uniform size grids where every grid is considered as a cluster. From each grid, a Grid Head (GH) is being selected depending upon the residual energy of the SNs. The selection of next-hop for dual-hop communication is based on finding out the optimal node among the neighboring GHs using Technique for Order Preference by Similarity to Ideal Solution (TOPSIS) method. MATLAB is used to perform the simulations. The evaluation of performance of the proposed work is made in terms of energy consumption, lifetime and stability period of the network.