Breaking Spectrum Gridlock With Cognitive Radios: An Information Theoretic Perspective

  title={Breaking Spectrum Gridlock With Cognitive Radios: An Information Theoretic Perspective},
  author={Andrea J. Goldsmith and Syed Ali Jafar and Ivana Maric and Sudhir Srinivasa},
  journal={Proceedings of the IEEE},
Cognitive radios hold tremendous promise for increasing spectral efficiency in wireless systems. This paper surveys the fundamental capacity limits and associated transmission techniques for different wireless network design paradigms based on this promising technology. These paradigms are unified by the definition of a cognitive radio as an intelligent wireless communication device that exploits side information about its environment to improve spectrum utilization. This side information… CONTINUE READING
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Report of the Spectrum Efficiency Working Group

  • Federal Communications Commission Spectrum Policy Task Force
  • Technical Report 02-135, no. November, 2002…
  • 2002
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