One of the main benefits of Community Reporting System
of Community Warning System Service is the site location. In
a simple mobile phone, the incident location is identified by the
cells of cellular network whose radius varies between 1 and 30
km. Common radiuses between two cells (or more) can
determine better site location. However, it is still too large to
determine the location. GPS offers much clo ser accuracy for
determined location. The average error from the known
location is between 8-15 meters [20], [3]. It depends on
satellite position, noise and barriers of radio signal, and
atmosphere conditions. Current researches have increased the
accuracy of GPS positioning by reducing the error below 1 cm
[12], [5].