199 search results - page 13 / 40 » Multiple antenna spectrum sensing in cognitive radios |
113
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INFOCOM
2012
IEEE
13 years 2 months ago
2012
IEEE
—In this paper we study the resource allocation in OFDM-based cognitive radio (CR) networks, under the consideration of many practical limitations such as imperfect spectrum sens...
139
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GLOBECOM
2010
IEEE
14 years 9 months ago
2010
IEEE
There are many key problems of decision making related to spectrum occupancies in cognitive radio networks. It is known that there exist correlations of spectrum occupancies in tim...
123
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INFOCOM
2009
IEEE
15 years 6 months ago
2009
IEEE
— Collaborative spectrum sensing among secondary users (SUs) in cognitive networks is shown to yield a significant performance improvement. However, there exists an inherent tra...
104
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ICC
2009
IEEE
15 years 6 months ago
2009
IEEE
—In this paper, we present a composite hypothesis testing approach for cooperative spectrum sensing. We derive the optimal likelihood ratio test (LRT) statistic based on the Neym...
CORR
2007
Springer
14 years 11 months ago
2007
Springer