Coverage is another important aspect of WSN as it
shows how large area of monitoring can be covered and
to guarantee the delivery of data from the sensor nodes to
the base station at reliable signal strength.
Measurement is carried out in a flat outdoor open field
with no obstacles assumed close to actual application.
Base station is located at the center of the area and sensor
nodes is placed at certain interval of distance at different
angle covering 0º to 360º. The average signal strength is
based on the value of the LQI received at the base
station for 20 cycles. All the sensor nodes and
coordinator at the base station is using a 2 dB gain
omnidirectional dipole antenna with transmitted power of
100 mW.