Catching target mobile node using time-of-arrival measurement in Wireless Sensor Networks

Target localization and mobile node tracking problems in WSNs have been receiving considerable concentration recently, because of the requirements to achieve high localization accuracy, with the output of minimum cost. The drawback involved is the crisis of target tracking in Wireless Sensor Networks. Localization primarily refers to revealing of the spatial coordinates of a node. Target tracking deals with spatial coordinates discovery and movement tracking of a moving object. The mobile node location algorithms like weighted tracking methods and Arrival Time (AT) are insufficient for finding the location of the mobile device. The location estimation and weighted tracking method are mainly based on mobile target signal's Arrival Time (AT) measurement model. In this paper work, location tracking process can be achieved into two ways. At first part we find the location of the mobile node along with the extended weighted tracking method. This can be used to track the mobile device and to estimate the weight for the particular mobile node. Secondly, the concentration is towards the AT measurement model for measuring the signal arrival time. Finally, the proposed algorithm finds the location of the mobile device and improves the performance of the AT measurement model in different places.