Simulation to track 3D location in GSM through NS2 and real life

In recent times the cost of mobile communication has dropped significantly leading to a dramatic increase in mobile phone usage. The widespread usage has led mobiles to emerge as a strong alternative for other applications one of which is tracking. This has enabled law-enforcing agencies to detect overspeeding vehicles and organizations to keep track its employees. The 3 major ways of tracking being employed presently are (a) via GPS [1] (b) signal attenuation property of a packet [3] and (c) using GSM Network [2]. The initial cost of GPS is very high resulting in low usage whereas (b) needs a very high precision measuring device. The paper presents a GSM-based tracking technique which eliminates the above mentioned overheads, implements it in NS2 and shows the limitations of the real life simulation. An accuracy of 97% was achieved during NS2 simulation which is comparable to the above mentioned alternate methods of tracking.Comment: 12 Pages, JGraph-Hoc Journa

Staff outdoor positioning in large area campus using GPS enabled phone, Google Map and mobile network

This paper explore the feasibility of using GPS enabled phone to locate staff in a large campus area on a customized campus map. This system provides an alternative approach to locate staff compared to static directory. GPS foot printing enable the system to determine which campus building that the staff is in. The map can be viewed on Internet connected browser via personal computer or mobile device