The speech quality for a particular mobile communication system is just acceptable when the received power at the terminals of the mobile receiver is - 110dBm. Given that the transmit power at the base station (BTS) is 35 W, base station feeder losses are 10 dB, base station antenna gain is 10 dBd, the mobile station (MS) antenna gain is 0 dBd and the mobile feeder losses are 2 dB. a- Express all powers in dBw, all gains in dBi, all losses in dB. b- Find the maximum acceptable path loss of this mobile communication system. c- If the distance between the BTS and MS antennas is R = 30 km and the frequency used is 900 MHz, determine the loss in the system (LFs) using the Free Space Model. == d- For the same parameters of the system, recalculate the loss considering Plane Earth Model (taking into consideration the influence of earth). Take h₁ = 15 m, hm = 2 m.

The speech quality for a particular mobile communication system is just acceptable when the received power at the terminals of the mobile receiver is - 110dBm. Given that the transmit power at the base station (BTS) is 35 W, base station feeder losses are 10 dB, base station antenna gain is 10 dBd, the mobile station (MS) antenna gain is 0 dBd and the mobile feeder losses are 2 dB. a- Express all powers in dBw, all gains in dBi, all losses in dB. b- Find the maximum acceptable path loss of this mobile communication system. c- If the distance between the BTS and MS antennas is R = 30 km and the frequency used is 900 MHz, determine the loss in the system (LFs) using the Free Space Model. == d- For the same parameters of the system, recalculate the loss considering Plane Earth Model (taking into consideration the influence of earth). Take h₁ = 15 m, hm = 2 m.