14-08-2012, 03:59 PM
TRACKING AND POSITIONING OF MOBILE SYSTEMS IN TELECOMMUNICATION
ABSTRACT
Mobile positioning technology has become an important area of research, for emergency as well as for commercial services. 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 evolution to location-dependent services and applications in wireless systems continues to require the development of more accurate and reliable mobile positioning technologies. 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, I present a simple method for mobile telephone tracking and positioning. Through this we will discuss some technology used for mobile positioning and tracking which include:
1.Handset-Based Positioning Technology
2.Network-Based Positioning Technology
Effective evaluation of positioning methods in order to give fair results when comparing different positioning technologies requires performance measurements applicable to all the positioning technologies for mobile positioning.
Also in this paper, I outline and compare five major performance measures namely,
1. Accuracy
2. Reliability
3. Availability
4. Latency
5. Applicability
and how they apply to positioning technologies.
ABSTRACT
Mobile positioning technology has become an important area of research, for emergency as well as for commercial services. 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 evolution to location-dependent services and applications in wireless systems continues to require the development of more accurate and reliable mobile positioning technologies. 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, I present a simple method for mobile telephone tracking and positioning. Through this we will discuss some technology used for mobile positioning and tracking which include:
1.Handset-Based Positioning Technology
2.Network-Based Positioning Technology
Effective evaluation of positioning methods in order to give fair results when comparing different positioning technologies requires performance measurements applicable to all the positioning technologies for mobile positioning.
Also in this paper, I outline and compare five major performance measures namely,
1. Accuracy
2. Reliability
3. Availability
4. Latency
5. Applicability
and how they apply to positioning technologies.