Question

Advantages of cellular system in wireless communication

Answer 1

1. Higher capacitySmaller the size of the cell more thenumber of concurrent users i.e. huge cells do not allow for more concurrent users.2. Less transmission powerHuge cells require a greater transmission power than small cells.3. Local interference onlyFor huge cells there are a number of interfering signals, while for small cells there is limited interference only.4. RobustnessAs cellular systems are decentralized, they are more robustagainst the failure of single components.

Answer 2

 Infrastructure needed

1Small cells require a complex infrastructure to connect all base station. The infrastructure required includes switches for call forwarding, location registers etc.

2.   Handover needed

The mobile station has to perform a handover when changing from one cell to another very frequently.

3.   Frequency planning

To avoid interference, frequency spectrum should be distributed properly with a very less range of frequency spectrum.