A new localization using single mobile anchor and mesh-based path planning models

Localization is an important issue in field of Wireless Sensor Networks. Range-free approach is most promising solution used for networks due to its low cost and less power consumption. The main limitation of range-free approach is low accuracy as it is affected by many factors such as node density, coverage and topology diversity. This work proposes a solution that achieves higher accuracy and gives higher coverage for all kinds of network scenarios, even for sparse one. The approach is mainly developed to improve traditional range-free (DV-Hop) method by using a single mobile anchor and mesh based path planning models. The single mobile anchor identifies different reference points in uniform manner to locate nodes in the network region. The performance of proposed methods is evaluated via simulations to demonstrate its effectiveness and simulation results confirm adequacy of the proposed solutions with higher accuracy and higher coverage as compared to traditional one.