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Opportunistic+Spectrum+Sharing

  • 資源大小:2859 K
  • 上傳時間: 2020-05-31
  • 上傳用戶:shancjb
  • 資源積分:2 下載積分
  • 標      簽: Opportunistic Spectrum Sharing

資 源 簡 介

Rapid growth of wireless communication services in recent decades has created
a huge demand of radio spectrum. Spectrum scarcity and utilization inefficiency
limit the development of wireless networks. Cognitive radio is a promising tech-
nology that allows secondary users to reuse the underutilized licensed spectrum of
primary users. The major challenge for spectrum sharing is to achieve high spectrum
efficiency while making non-intrusive access to the licensed bands. This requires in-
formation of availability and quality of channel resources at secondary transmitters,
however, is difficult to be obtained perfectly in practice.

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