Introduction - If you have any usage issues, please Google them yourself
The characteristics of wireless signal changes as it travels the transmitter antenna to the receiver
antenna. These characteristics depend upon the distance between the two antennas, the path(s) taken
by the signal, and the environment (buildings and other objects) around the path. The profile of
received signal can be obtained that of the transmitted signal if we havea model of the medium
between the two. This model of the medium is called channel model.