In a cellular system, diffraction, reflection, and direct path take different amount of time for the signal to reach an MS. How do you differentiate and use these signals? Explain clearly. Compute the level crossing rate with respect to the rms level for a vertical monopole antenna, assuming the Rayleigh faded isotropic scattering case. The receiver speed is 20 km/hr and the transmission occurs at 800 MHz.
What will be an ideal response?
Diffraction results in small-scale fading and reflection results in large scale fading. Therefore, on receiving the different signals, we can study the spatial and temporal variations of the signal strengths with respect to distance traveled to understand about the diffracted and reflected signals. If the variations change fast with respect to time and distance, then we conclude it to be diffraction and reflection otherwise.
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