Spectrum Sensing based on Energy Detection in Cognitive Radio

Provided by: Creative Commons
Topic: Networking
Format: PDF
In cognitive radio networks, dynamic spectrum access allows an unlicensed (secondary) user to use the frequency bands that are statically allocated to licensed (primary) users under condition of causing no harm to the primary transmission. For the process of the dynamic spectrum access to succeed, spectrum sensing becomes of great importance for the secondary user to capture the under-utilized frequency bands. In this paper, the energy detection technique for spectrum sensing is investigated and the sensing throughput tradeoff for cognitive radio systems is examined.

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