Operation and Power Control of Cellular Systems: In this section, let us describe the operation of the cellular mobile system from a customer’s perception without touching on the design parameters. The operation can be divided into four parts and a handoff procedure. Mobile Unit Initialization : When a user sitting in a car activates the […]
Operation and Power Control of Cellular Systems Read More »
Cellular Mobile Radio System – Structure and its Workings: The third communication channel, mobile radio channel, extends the capability of the public telecommunications network by introducing mobility into the network by virtue of its ability to broadcast. The term ‘mobile radio’ is usually meant to encompass terrestrial situations where a radio transmitter or receiver is
Cellular Mobile Radio System – Structure and its Workings Read More »
Digital Satellite Communication – Definition and Advantages: With the developments in digital electronics technology, access techniques and possibility of expanded communication network, digital signaling techniques have been introduced in communication by the satellite. Some of the advantages of digital satellite communication are : Increased efficiency of multiplexing multiple signals or handling digital messages in packets
Digital Satellite Communication – Definition and Advantages Read More »
Active and Passive Satellite: Active and Passive Satellite – Possible communication satellites may be active or passive and the major difference between the two is that whether the communication relay involves passive reflection or an active electronic system. An active satellite is one which has transmitting equipment abroad, such as a transponder. It is a
Active and Passive Satellite Read More »
Satellite Communication System – Definition, Block Diagram, Advantages and Disadvantages: A satellite communication channel provides broad-area coverage in a continental as well as intercontinental sense. Moreover, access to remote areas not covered by conventional cable or fiber communications is also a distinct feature of satellites. The basic elements of satellite communication system are earth stations,
Satellite Communication System – Definition, Block Diagram, Advantages and Disadvantages Read More »
