A wireless system base station operating at $1\mathrm{.}2$GHz in a large city urban environment

transmits $15$W from the top of a $30$m tower. The base station antenna$$s gain is $7$dBi and the

system losses are $4$dB$.$ A receiver operating in the vicinity of the base station is located at an

average height of $1\mathrm{.}6$m above flat earth and has an antenna gain of $2$dBi. The receiver is $12$

km away from the base station.

a$.)$ Using the Hata model calculate the median path loss and the corresponding received

power.

b$)$ Calculate the received power using the flat Earth model and compare the result with the

one from the Hata model. Discuss the difference.

c$)$ Using the Lee model calculate the median path loss and the received power using the

parameters for New York City.