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EM-based noise plus interference estimation for OFDM-based cognitive radio systems.
Daiming Qu
Youwen Yi
Tao Jiang
Guangxi Zhu
Published in:
Wirel. Commun. Mob. Comput. (2012)
Keyphrases
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spectrum sensing
cognitive radio
cognitive radio networks
carrier frequency offset
wireless communication
multipath
wireless systems
distributed systems
maximum likelihood
data processing
communication systems