Spectrum sensing in cognitive radio networks
Cognitive radio (CR) has been introduced as an innovative solution to improve spectral efficiency. Due to the regulatory arrangement, spectral bands have been licensed to different service groups and operators. Recent studies showed that the under-utilization of the allocated spectrum was quit...
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| Format: | Final Year Project |
| Language: | English |
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Nanyang Technological University
2021
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| Online Access: | https://hdl.handle.net/10356/149617 |
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| Institution: | Nanyang Technological University |
| Language: | English |
| Summary: | Cognitive radio (CR) has been introduced as an innovative solution to improve spectral
efficiency. Due to the regulatory arrangement, spectral bands have been licensed to different
service groups and operators. Recent studies showed that the under-utilization of the allocated
spectrum was quite common. In a CR network, when a licensed primary user (PU) is not using
the frequency spectrum, the unlicensed secondary users (SUs) can access the same frequency
band. Hence, individual SUs need to conduct spectrum sensing and determine the operating
status of the PU. In this report, different spectrum sensing techniques will be discussed and
more emphasis will be given to the method of energy detection in different fading environments.
MATLAB software is used for the simulations. |
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