DocumentCode :
2157892
Title :
Spectrum sensing using multiple antenna-aided energy detectors for cognitive radio
Author :
Hwang, S.-H. ; Baek, J.-H. ; Dobre, O.A.
Author_Institution :
Dept. of Electron. Eng., Dongguk Univ., Seoul
fYear :
2009
fDate :
3-6 May 2009
Firstpage :
209
Lastpage :
212
Abstract :
In this paper, a new energy detection-based scheme is introduced for spectrum sensing in cognitive radio systems. This employs multiple receive antennas to mitigate the channel fading. Partial decisions are first made by employing the conventional energy detector at each antenna, based on which a final decision on the presence of the signal is reached. Performance of the proposed and conventional energy detection schemes is presented in terms of the complementary receiver operating characteristic (ROC), when considering a Suzuki channel. The effect of the sensing duration and mobile speed on the sensing performance is also investigated.
Keywords :
cognitive radio; decision theory; fading channels; frequency allocation; mobile radio; receiving antennas; sensitivity analysis; signal detection; Suzuki channel; channel fading mitigation; cognitive radio system; employs multiple receive antennas; energy detection-based scheme; mobile radio; partial decision criterion; receiver operating characteristics; spectrum sensing; Band pass filters; Chromium; Cognitive radio; Collaboration; Detectors; Diversity methods; Fading; Power engineering and energy; Receiving antennas; Reliability engineering; Cognitive radio; decision criterion; energy detector; multiple antennas; spectrum sensing;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Electrical and Computer Engineering, 2009. CCECE '09. Canadian Conference on
Conference_Location :
St. John´s, NL
ISSN :
0840-7789
Print_ISBN :
978-1-4244-3509-8
Electronic_ISBN :
0840-7789
Type :
conf
DOI :
10.1109/CCECE.2009.5090122
Filename :
5090122
Link To Document :
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