ABSTRACT
This chapter analyzes the main phenomena concerning multipath propagation in a mobile radio environment. Due to multipath propagation, a transmitted signal arrives at the receiver at different time instants and with different amplitudes. In the narrowband systems all of the components of the signal are equally influenced by multipath propagation. Having described the main mobile radio propagation phenomena and the received signal characteristics, it is appropriate to address the main topics to be looked at when field measurements are to be carried out. Due to multipath propagation, a single transmitted wave is received at the mobile as a sum of multiple waves each of which has its own time delay. Consider an arbitrary radio signal with a given bandwidth, propagating in a mobile radio environment. Due to the multipath effect, each frequency component of this signal may reach the destination with different time delays.
