Location based services are used more frequently by the mobile users. A location based service is a location provider
that is used to track the location of any mobile node through the mobile network that includes vehicular tracking system
called fleet net. In mobile communication the tracking of location plays a major role using this LBS services. In order
to track the location of the user’s mobile device it checks the nearest base station available to the mobile network and
GPS Global Positioning System for tracking location. The GPS satellite is used for navigation purpose and it is
combined with LBS is used to track the location of mobile device and the actual work of GPS is to calculate the
position in the measure of coordinates like latitude and longitude values through the GPS receiver. In general this GPS
works in open space areas only and used for radio navigation purpose through radio signals the GPS is a small device
that can be embedded in any devices like mobiles.
The mobile that is embedded with GPS receiver calculates the exact longitude, latitude and altitude values and those
values can be used by LBS for finding the location .GPS also provides information like time for calculating sender and
receiver locations based on the information received from the satellites. Using GPS receiver in the mobile device we
can even set the navigation path from source to reach a particular destination .Three satellites may be enough for
computing the position of mobile devices.