COMPUTER FUNDAMENTALS

Detailed explanation-1: -Explanation: Actual radio coverage of a cell is known as the footprint. It is determined from field measurements or propagation prediction models. Although the real footprint is amorphous in nature, a regular cell shape is needed for systematic system design.

Detailed explanation-2: -Frequency reusing is the concept of using the same radio frequencies within a given area, that are separated by considerable distance, with minimal interference, to establish communication. Frequency reuse offers the following benefits − Allows communications within cell on a given frequency.

Detailed explanation-3: -Explanation: Radio capacity is a parameter which measures spectrum efficiency of a wireless system. This parameter is determined by the required carrier to interference ratio and the channel bandwidth. Explanation: Let, D is the distance between co-channel cells and R be the cell radius.

Detailed explanation-4: -Normally, omnidirectional antennas are used in center-excited cells and sectored directional antennas are used in corner-excited cells. groups which contain completely different channels than neighbouring cells.

Detailed explanation-5: -Technique for using a specified range of frequencies more than once in the same radio system so that the total capacity of the system is increased without increasing its allocated bandwidth.