Spectrum Sensing with Improved Energy Detector in Interference
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A cognitive radio (CR) came into existence as a solution to the radio frequency spectrum underutilization (scarcity) problem. A CR promotes dynamic spectrum utilization and enables increase in the spectrum usage efficiency. For a CR to be highly efficient, the foremost task is to identify the possible communication opportunities, called spectrum holes through a process called spectrum sensing. Fundamentally, spectrum sensing should be highly reliable for accurately track those communication opportunities. The energy detector, which offers a simple solution to the spectrum sensing task is one of the most popular devices used for detecting spectrum holes. (As cited in abstract.)
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http://purl.org/coar/resource_type/c_93fc
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en