The main objective of CELL in a cellular mobile system is

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UGC NET Paper 2: Electronic Science Nov 2020 Official Paper
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  1. Higher bandwidth
  2. Hand off
  3. Frequency re-use
  4. Simple modulation techniques

Answer (Detailed Solution Below)

Option 3 : Frequency re-use
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Detailed Solution

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Explanation:

A cellular network is an underlying technology for mobile phones, personal communication systems, wireless networking, etc. The technology is developed for a mobile radiotelephone to replace high-power transmitter/receiver systems. Cellular networks use lower power, shorter range, and more transmitters for data transmission.

Frequency reusing is the concept of using the same radio frequencies within a given area, that are separated by a considerable distance, with minimal interference, to establish communication.

Frequency reuse is the main objective of CELL in a cellular mobile system and it offers the following benefit:

  • Allows communications within the cell on a given frequency
  • Limits escaping power to adjacent cells
  • Allows re-use of frequencies in nearby cells
  • Uses the same frequency for multiple conversations
  • 10 to 50 frequencies per cell.

A hexagon cell shape is highly recommended for its easy coverage and calculations. It offers the following advantages −

  • Provides equidistant antennas.
  • Distance from center to vertex equals the length of the side.

F1 S.B Madhu 29.04.20 D8

Hence option (3) is the correct answer.

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