Cognitive Radio Networks
Keyword(s):
Cognitive radio (CR) offers a novel way for effective usage of wireless spectrum by using dynamic spectrum sensing and allocation. One of the main components of CR is to find a spectrum hole for data transmission. Spectrum hole can be found by using spectrum sensing, a geolocation database, or by using a beacon signal. In this chapter, the authors describe algorithms for spectrum sensing in the presence of both additive white Gaussian and colored Gaussian noise. The algorithms include blind, non-blind, and cooperative sensing-based methods. The authors have compared the performance of various methods for IEEE 802.22 standard (which is the first standard incorporating CR).
2014 ◽
Vol 17
(1)
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pp. 17-31
Keyword(s):
2014 ◽
Vol 59
(16)
◽
pp. 1896-1902
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Keyword(s):
International Journal of Advanced Research in Electrical Electronics and Instrumentation Engineering
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2015 ◽
Vol 04
(03)
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pp. 1501-1506