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Performance of the communication protocol

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• Efficiency: Channel utilization
  • Channel utilization

    Channel utilization = the fraction of the transmission capacity of the communication channel that contains data (frames) transmissions Time used to transmit data frames Channel utilization = ---------------------------------- Total amount of time

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  • Another term for channel utilization:

    Channel efficiency or simply efficiency

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• Important fact from Physics
  • Facts:

    Speed of light in vacuum (or space) ~= 3×108 m/sec Speed of electrical signal in (copper) wire ~= 2×108 m/sec