What is cellular system ? Give advantages of cellular system.
Answers
A cellular network or mobile network is a communication network where the last link is wireless. The network is distributed over land areas called cells, each served by at least one fixed-location transceiver, but more normally three cell sites or base transceiver stations. These base stations provide the cell with the network coverage which can be used for transmission of voice, data, and other types of content. A cell typically uses a different set of frequencies from neighboring cells, to avoid interference and provide guaranteed service quality within each cell.
1. Higher capacity
Smaller the size of the cell more the number of concurrent users i.e. huge cells do not allow for more concurrent users.
2. Less transmission power
Huge cells require a greater transmission power than small cells.
3. Local interference only
For huge cells there are a number of interfering signals, while for small cells there is limited interference only.
4. Robustness
As cellular systems are decentralized, they are more robust against the failure of single components.