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Shannon's Law Dictates Enlightened Spectrum Policy
Shannon's Law graph
  • Capacity increases linearly with bandwidth but only logarithmically with SNR. Returns diminish dramatically above SNR of 20 dB (past the "knee" of the curve)

  • It follows directly from Shannon's Law that nonexclusive licensing of large, contiguous regions of radio spectrum, combined with interference mitigation techniques such as antenna gain requirements and cognitive radio technology, maximize the utility of spectrum