Assignment:
Consider a channel whose power-density profile is made up of three impulse functions with relative power and time-delay locations as follows: -20-dB at 0 µs, 0-dB at 2 us, and -10-dB at 3 ps.
(a) Calculate the mean excess delay.
(b) Calculate the second moment of the excess delay.
(c) Calculate the rms delay spread.
(d) Estimate the coherence bandwidth (corresponding to a correlation ≥ 0.9).
(e) If the receiver is located in an airplane traveling at 800 km/hr, and the time required to traverse a half wavelength is 100 iss, calculate an approximate value for the transmission frequency.
Provide complete and step by step solution for the question and show calculations and use formulas.