Effect of Network Topologies on Localization using DV-Hop based PSO Algorithm

In WSN, Localization of node plays significant role. Localization is applied to obtain the location of node. Without the knowledge of exact location of node, information collected from this particular node is not much useful. There are various techniques of Localization of nodes in WSN like Range-based and Range-free. In range-based technique extra hardwares required which make it costly but range free required comparatively less hardware. So, we prefer range free localization. Most commonly used range free algorithm is DV-Hop localization algorithm, which is used to evaluate the position of nodes using distance vector method. The proposed research work has analysed the effect of different network topology on the performance of localization algorithm using optimization (like PSO). Here, the simulation has been performed by using MATLAB and comprehensive study on the network topology of different shapes like square-shaped, C-shaped, O-shaped topology has also been performed. The proposed simulation result shows that, the comparison between these different shaped network topology's localization error and its variance.