Consider a geographical area divided (for mobile phone coverage purposes) into 36 hexagonal cells, without gaps or overlaps between them. Each cell has a radius of 2 km. The reuse factor is 5. There are 350 channels in total.
i) What is the total area covered?
ii) What is the number of channels per cell?
iii) What is the maximum number of concurrent calls that can be handled?
iv) Would the answers to (i), (ii) or (iii) change if the radius of each cell was 1 km and there were 144 cells in total?