Title
Wideband spectrum sensing using the all-phase FFT
Abstract
Spectrum sensing is a key technology of cognitive radio. The goal of spectrum sensing in this context is to achieve a high detection probability in order to avoid causing interference to the primary licensed users. Among the methods available for spectrum sensing, energy detection has been widely applied in hardware implementations. However, since previous work has been based on the traditional FFT, the side leakage problem makes it difficult to detect a primary user adjacent to a strong signal. In this paper, we propose an all-phase FFT based wideband spectrum sensing processor. Simulation results show that it can increase the probability of detection of a primary user that is adjacent in frequency to a strong signal. It can also improve the receiver operating characteristic curve. Hardware implementation requirements are also given.
Year
DOI
Venue
2011
10.1109/ASICON.2011.6157158
ASICON
Keywords
Field
DocType
wideband spectrum sensing,all-phase fft,energy detection,cognitive radio,receiver operating characteristic curve,side leakage problem,spectrum sensing,fast fourier transforms,sensitivity analysis,wireless sensor networks,application specific integrated circuits,wireless communication,application specific integrated circuit,wireless sensor network,probability of detection
Wideband,Wireless,Computer science,Application-specific integrated circuit,Electronic engineering,Fast Fourier transform,Interference (wave propagation),Wireless sensor network,Statistical power,Cognitive radio
Conference
Volume
Issue
ISSN
null
null
2162-7541 E-ISBN : 978-1-61284-191-5
ISBN
Citations 
PageRank 
978-1-61284-191-5
0
0.34
References 
Authors
5
3
Name
Order
Citations
PageRank
Lian Huai100.34
Gerald E. Sobelman222544.78
Xiaofang Zhou35381342.70