1. Cellular Telephone Networks By: Sultan Alshaek

2. Outline: Cellular telephone definition. Cellular telephone advantages. Cellular telephone Concept. Simple view of the cellular telephone.

3. Cellular telephone definition cellular network or mobile network is a radio network distributed over land areas called cells, each served by at least one fixed-location transceiver, known as a cell site or base station.radiotransceivercell sitebase station In a cellular network, each cell uses a different set of frequencies from neighboring cells, to avoid interference and provide guaranteed bandwidth within each cell.

4. Cellular telephone advantages flexible enough to use the features and functions of almost all public and private networks. increased capacity reduced power use larger coverage area reduced interference from other signals

5. Cellular telephone Concept In a cellular radio system, a land area to be supplied with radio service is divided into regular shaped cells. Each of these cells is assigned multiple frequencies (f 1 - f 6 ). The group of frequencies can be reused in other cells, provided that the same frequencies are not reused in adjacent neighboring cells as that would cause co-channel interference.

6. Simple view of the cellular telephone A network of radio base stations forming the base station subsystem. The core circuit switched network for handling voice calls and text. A packet switched network for handling mobile data The public switched telephone network to connect subscribers to the wider telephony network.