Paper Abstract and Keywords |
Presentation |
2014-03-03 15:50
Window Functions for Frame Correlation Reduction in Overlapped FFT based Energy Detection Ryo Takai, Shoya Uchida, Yukitoshi Sanada (Keio Univ.) SR2013-101 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
Overlapped FFT based energy detection has been proposed as a signal detection scheme in dynamic spectrum access. The overlapped FFT scheme increases the number of FFT frames to reduce the variance of squared noise and improves the detection performance. As the FFT frames are overlapped, correlation values between the frames affect to the detection performance. This paper proposes the window functions that decrease the correlation values between adjacent FFT bins. Numerical results obtained through computer simulation show that novel window functions generated by upsampling a Hamming window improves the detection performance by 0.09. However, this window function suffers more from adjacent channel interference than a conventional window. Therefore, this paper also proposes a two step detection scheme to achieve higher detection performance and to avoid the influence of the adjacent channel interference. Result of computer simulation indicate that the proposed scheme improves the detection performance and reduces the effect from the adjacent channel signal. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
Cognitive radio / Overlapped FFT / Spectrum sensing / / / / / |
Reference Info. |
IEICE Tech. Rep., vol. 113, no. 457, SR2013-101, pp. 33-40, March 2014. |
Paper # |
SR2013-101 |
Date of Issue |
2014-02-24 (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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SR2013-101 |
Conference Information |
Committee |
RCS SR SRW |
Conference Date |
2014-03-03 - 2014-03-05 |
Place (in Japanese) |
(See Japanese page) |
Place (in English) |
Waseda Univ. |
Topics (in Japanese) |
(See Japanese page) |
Topics (in English) |
Mobile Communication Workshop |
Paper Information |
Registration To |
SR |
Conference Code |
2014-03-RCS-SR-SRW |
Language |
Japanese |
Title (in Japanese) |
(See Japanese page) |
Sub Title (in Japanese) |
(See Japanese page) |
Title (in English) |
Window Functions for Frame Correlation Reduction in Overlapped FFT based Energy Detection |
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Cognitive radio |
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Overlapped FFT |
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Spectrum sensing |
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1st Author's Name |
Ryo Takai |
1st Author's Affiliation |
Keio University (Keio Univ.) |
2nd Author's Name |
Shoya Uchida |
2nd Author's Affiliation |
Keio University (Keio Univ.) |
3rd Author's Name |
Yukitoshi Sanada |
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Keio University (Keio Univ.) |
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Speaker |
Author-1 |
Date Time |
2014-03-03 15:50:00 |
Presentation Time |
25 minutes |
Registration for |
SR |
Paper # |
SR2013-101 |
Volume (vol) |
vol.113 |
Number (no) |
no.457 |
Page |
pp.33-40 |
#Pages |
8 |
Date of Issue |
2014-02-24 (SR) |
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