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Low complexity FFT based spectrum sensing in Bluetooth system

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Authors
Oh, Dong-Chan; Lee, Yong-Hwan
Issue Date
2009-04
Publisher
Institute of Electrical and Electronics Engineers
Citation
VTC Spring 2009. IEEE 69th Vehicular Technology Conference, 2009
Keywords
spectrum sensinglow complexitybluetooth
Abstract
In this paper, we propose a complexity reduced
spectrum sensing technique for Bluetooth to find channels free
from the use of other communication devices in 2.4 GHz ISM
band. By exploiting the spectrum characteristics of interference
sources, the proposed scheme detects the availability of channels
by comparing the power spectrum density (PSD) with a
threshold. To reduce the implementation complexity, the PSD
is calculated by means of fast Fourier transform and linear
interpolation. The threshold for the detection is determined to
maximize the detection probability. To further improve the transmission
performance, the proposed scheme dynamically changes
the channels by measuring the transmission performance.
Language
English
URI
http://www.ieeevtc.org/vtc2009spring

http://hdl.handle.net/10371/7531
DOI
https://doi.org/10.1109/VETECS.2009.5073654
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College of Engineering/Engineering Practice School (공과대학/대학원)Dept. of Electrical and Computer Engineering (전기·정보공학부)Others_전기·정보공학부
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