Subject: Mobile Computing

Difficulty: Medium

Marks: 4 Marks

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.

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.