Subject : Wireless Network

Topic : Overview of Cellular Systems

Difficulty : Low

The 2G systems mainly use one-type cell and employ frequency reuse within adjacent cells in such a way that each single cell manages its own radio zone and radio circuit control within the mobile network, including traffic management and handoff procedures. The traffic supported in each cell is fixed because of frequency limitations and little flexibility of radio transmission which is mainly optimized for voice and low data rate transmissions. Increasing traffic leads to costly cellular reconfiguration such as cell splitting and cell sectorization.

The use of a regular cell pattern in a cellular system design eliminates difficulties in transmission, switching, and control resources.

This makes it possible to use the same radio channel in several cells thought the network.
Advantages:
1.Increses radio spectrum
2 Increases network Efficiency