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a) determine the critical distance for the two-ray model in an urban microcell (ht=10m, hr=3m) and...

a) determine the critical distance for the two-ray model in an urban microcell (ht=10m, hr=3m) and an indoor microcell (ht=3m, hr=2m) for fc=2GHz. What are the practical implications of your obtained values
b) Consider an indoor wireless LAN with fc=900MHz, cells of radius 100m, and none-directional antennas. Under the free-space path lost model, what transmit power is required at the access point such that all terminals within the cell receive a minimum power of 10uW. How does this change if the system frequency is 5GHz.
c) The transmission power of a wireless system is 40W, under a free-space propagation model. 1) what is the transmission power in unit of dBm 2) The receiver is in a distance of 1000m, what is the receiver power, assuming that the carrier frequency fc=900MHz and Gt=Gr=0dB 3) Express the free space path lost in dB

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