Question: Question 3 [10 Marks A duplex wireless cellular system with total allocated spectrum of 20 MHz and bandpass bandwidth of 80 KHz in each simplex

Question 3 [10 Marks A duplex wireless cellular system with total allocated spectrum of 20 MHz and bandpass bandwidth of 80 KHz in each simplex channel uses a TDMA scheme to cope with the worst signal-to- interference ratio of 30 dB. If 25 cells is used for frequency reuse, a) Find the number of duplex channels and the total number of channels per cell site. [4 Marks b) If a path loss exponent of n = 4, what will be the optimal number of cells for: 16 Marks (1) Omnidirectional antennas, (ii) 120 sectoring, (iii) 60 sectoring

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