Error correction techniques and ARQ schemes can provide an elegant way to implement end-to-end error-free transmission. Error correction capability can improve the link quality. It will decrease the probability of retransmission. However, channel coding cannot correct all the errors in the transmission. Hence, the ARQ is also necessary if we need the error-free transmission. The below figure shows the cell structure of a metro area. Can you explain why this might have been designed so?

This question refers from mobile wireless and networking.

The figure shows the cell structure of a metro area. Can you explain why this might have been designed so? 4 4 8 8 4 8 4 4 4 4 00 8 4 12 4 00 8 AN 4 12 12 4 12 4 12 UNAN 4 12 8 00 UNYA NOOC 124 00 8 4 yu 4 4 12) 4 12 4 4 12 4 4 4 12 8 4 12 00 4 4 4 12 4 8 8 8 4 4