DocumentCode :
3274243
Title :
FPGA implementation of autocorrelation-based feature detector for cognitive radio
Author :
Kokkinen, Kari ; Turunen, Vesa ; Kosunen, Marko ; Chaudhari, Sachin ; Koivunen, Visa ; Ryynänen, Jussi
Author_Institution :
Dept. of Micro- & Nanosci., Helsinki Univ. of Technol., Espoo, Finland
fYear :
2009
fDate :
16-17 Nov. 2009
Firstpage :
1
Lastpage :
4
Abstract :
Cognitive radio is an emerging technology in communication systems. Cognitive radios aim to relief the shortage of spectral resources by identifying and exploiting underutilized radio spectrum. A key task of the cognitive radio is spectrum sensing in order to find free spectrum and detect licensed spectrum user transmissions. In this paper, an FPGA implementation of a feature detector for OFDM-based primary user signals is presented. The detection algorithm, that was originally presented in , is modified in order to achieve power and area efficient hardware realization. The algorithm is implemented in an FPGA evaluation environment, and the performance is verified in simulation.
Keywords :
OFDM modulation; cognitive radio; correlation methods; field programmable gate arrays; FPGA; OFDM; autocorrelation-based feature detector; cognitive radio; communication systems; field programmable gate arrays; Acoustic signal detection; Autocorrelation; Cognitive radio; Computer vision; Detection algorithms; Detectors; Field programmable gate arrays; Hardware; OFDM; Signal detection;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
NORCHIP, 2009
Conference_Location :
Trondheim
Print_ISBN :
978-1-4244-4310-9
Electronic_ISBN :
978-1-4244-4311-6
Type :
conf
DOI :
10.1109/NORCHP.2009.5397849
Filename :
5397849
Link To Document :
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