Tracking and Positioning of Mobile Systems in Telecommunication Networks

M Sushma Sri

In todays fast generation the Mobile Positioning technology has became a vital role in area of research. The evolution to location dependent services and applications in wireless systems continues to require the development of more accurate and reliable mobile positioning technologies. Mobile Positioning in cellular networks will provide several services such as, locating stolen mobiles, emergency calls, different billing tariffs depending on where the call is originated, and methods to predict the user movement inside a region. The major challenge to accurate location estimation is in creating techniques that yield acceptable performance when the direct path from the transmitter to the receiver is intermittently blocked. This is the Non Line of Sight (NLOS) problem, and it is known to be a major source of error since it systematically causes mobile to appear farther away from the Base station (BS) than it actually is, thereby increasing the positioning error. In this paper, we present a simple method for mobile telephone tracking and positioning with high accuracy. Through this we will discuss some technology used for mobile positioning and tracking.