Paper Abstract and Keywords |
Presentation |
2014-10-30 13:00
[Poster Presentation]
A Study on Undesired Spectrum Detection Method with FFT Ryota Higashi, Mai Ohta (Fukuoka Univ.), Osamu Takyu (Sinshu Univ.), Takeo Fujii (Univ. of Electro-Comm.), Makoto Taromaru (Fukuoka Univ.) SR2014-65 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
The cognitive radio (CR) system utilizes a vacant spectrum (white space) in the coexistence environment with the existing primary system. We assume the cognitive node detects the white space by using an energy detection with fast Fourier transform (FFT) over wideband spectrum. In this paper, the CR system uses the aggregated carriers, performing the energy detection at each FFT bin. However, in this case, the CR node cannot distinguish the desired signal, which is transmitted within its own network, because the undesired primary signal is included in the received spectrum at the CR node. Then we consider the energy detection method for easily distinguishing the undesired spectrum from the received spectrum by using the wideband FFT according to the characteristics of the undesired signal. The CR receiver can erase the undesired signal from the results of the energy detection of each FFT bin by distinguishing it. Here, we assume that the undesired signal is Bluetooth signal and the desired signal is a narrowband signal. In this paper, we evaluate the detection performance by using the computer simulation. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
Cognitive Radio / Spectrum Sensing / Energy detection / Fast Fourier Transform / / / / |
Reference Info. |
IEICE Tech. Rep., vol. 114, no. 284, SR2014-65, pp. 33-34, Oct. 2014. |
Paper # |
SR2014-65 |
Date of Issue |
2014-10-23 (SR) |
ISSN |
Print edition: ISSN 0913-5685 Online edition: ISSN 2432-6380 |
Copyright and reproduction |
All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034) |
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SR2014-65 |
Conference Information |
Committee |
SR |
Conference Date |
2014-10-30 - 2014-10-31 |
Place (in Japanese) |
(See Japanese page) |
Place (in English) |
I2R, Singapore |
Topics (in Japanese) |
(See Japanese page) |
Topics (in English) |
International Workshop (SmartCom 2014) |
Paper Information |
Registration To |
SR |
Conference Code |
2014-10-SR |
Language |
English (Japanese title is available) |
Title (in Japanese) |
(See Japanese page) |
Sub Title (in Japanese) |
(See Japanese page) |
Title (in English) |
A Study on Undesired Spectrum Detection Method with FFT |
Sub Title (in English) |
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Keyword(1) |
Cognitive Radio |
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Spectrum Sensing |
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Energy detection |
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Fast Fourier Transform |
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1st Author's Name |
Ryota Higashi |
1st Author's Affiliation |
Fukuoka University (Fukuoka Univ.) |
2nd Author's Name |
Mai Ohta |
2nd Author's Affiliation |
Fukuoka University (Fukuoka Univ.) |
3rd Author's Name |
Osamu Takyu |
3rd Author's Affiliation |
Sinshu University (Sinshu Univ.) |
4th Author's Name |
Takeo Fujii |
4th Author's Affiliation |
The University of Electro-Communications (Univ. of Electro-Comm.) |
5th Author's Name |
Makoto Taromaru |
5th Author's Affiliation |
Fukuoka University (Fukuoka Univ.) |
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Speaker |
Author-2 |
Date Time |
2014-10-30 13:00:00 |
Presentation Time |
120 minutes |
Registration for |
SR |
Paper # |
SR2014-65 |
Volume (vol) |
vol.114 |
Number (no) |
no.284 |
Page |
pp.33-34 |
#Pages |
2 |
Date of Issue |
2014-10-23 (SR) |
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