Given a cellular system in which there are a total of 1001 radio channels available for handling traffic. It is also given that the area of a cell is 6 km and the area of the entire system is 2100 km2. (a) Calculate the system capacity if the cluster size is 7. (b) How many times would the cluster of size 4 have to be replicated in order to approximately cover the entire cellular area ? (c) Calculate the system capacity if the cluster size is 4. (d) Does decreasing the cluster size increase the system capacity? Explain