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JSAC
2011
14 years 4 months ago
2011
Abstract—Cognitive radio (CR) technology enables the opportunistic use of the vacant licensed frequency bands, thereby improving the spectrum utilization. However, the CR operati...
INFOCOM
2012
IEEE
12 years 12 months ago
2012
IEEE
—Cognitive Radio Networks allow unlicensed users to opportunistically access the licensed spectrum without causing disruptive interference to the primary users (PUs). One of the ...
ICASSP
2010
IEEE
14 years 9 months ago
2010
IEEE
Vast segments of the frequency spectrum are licensed to specific users for particular applications. These legacy users, however, often under-utilize their designated spectrum seg...
ICASSP
2011
IEEE
14 years 1 months ago
2011
IEEE
In this paper, we study the eigenvalue-based spectrum sensing techniques for multiple-antenna cognitive radio networks. First, we study the extreme eigenvalue distributions of a c...
CORR
2007
Springer
14 years 9 months ago
2007
Springer
—In cognitive radio (CR) networks, there are scenarios where the secondary (lower priority) users intend to communicate with each other by opportunistically utilizing the transmi...