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Define frequency re-use and state two advantages.

Subject: Mobile Computing

Difficulty: Medium

Marks: 4 Marks


1 Answer
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Frequency Reuse: The design process of selecting and allocating RF channel group for all of the cellular base station within a cellular system is known as frequency reuse.

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Advantages:

  • Higher capacity

    • More frequent resource utilization increases the capacity

  • Less transmission power

    • Reduced cell sizes, less power needed to cover the cell area

    • Relaxed power amplifier specs at base stations

    • Longer life-time for mobile station batteries

  • Localized interference

    • Due to smaller service areas of cells, interference is as well localized to a smaller area

  • Robustness

    • In case that one cell is down, overlapping of cells guarantees that a mobile is able to get connected through other base stations

  • No technological challenges in deployment

    • Major problems related to minimizing the implementation and operational expenses of the system

    • Technological challenges related to capacity improvement methods.

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