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 dramaticincrease in mobile phone usage. The widespread usage has led mobiles to emerge as a strong alternativefor other applications one of which is tracking. This has enabled law-enforcing agencies to detect overspeedingvehicles and organizations to keep track its employees. The 3 major ways of tracking beingemployed presently are (a) via GPS [1] (b) signal attenuation property of a packet [3] and (c) using GSMNetwork [2]. The initial cost of GPS is very high resulting in low usage whereas (b) needs a very highprecision measuring device. The paper presents a GSM-based tracking technique which eliminates theabove mentioned overheads, implements it in NS2 and shows the limitations of the real life simulation. Anaccuracy of 97% was achieved during NS2 simulation which is comparable to the above mentionedalternate methods of tracking.