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| Presentation | 2012-03-07 16:40 An adjacent channel interference reduction technique using overlap FFT Filter-Bank for OFDMA signals in Cognitive Radio Tomonori Ohta, Masahiro Umehira (Ibaraki Univ.)  SR2011-120 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | An OFDMA (Orthogonal Frequency Division Multiple Access) technique is robust to severe multi-path fading and is flexible enough to change the bandwidth according to the number of sub-carriers, thus it can achieve high frequency utilization efficiency. However, OFDMA has a drawback of high sidelobe level since it is a block transmission technique, thus the relatively large guardband. Therefore, the reduction of the sidelobe level can improve the frequency utilization efficiency. On the other hand, for the application of OFDMA to cognitive radio the sidelobe level should be reduced to enable to use the vacant frequency band efficiently. This paper proposes to use the overlap FFT filterbank to reduce the adjacent channel interference of OFDMA signal and describes the adjacent channel interference performance as well as BER performance. |
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| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | OFDMA / Overlap FFT / Filter-bank / Adjacent channel interference / Cognitive Radio / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 111, no. 452, SR2011-120, pp. 113-117, March 2012. | |
| Paper # | SR2011-120 | |
| Date of Issue | 2012-02-29 (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) | |
| Download PDF | SR2011-120 |
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| Conference Information | |
| Committee | SR RCS SRW |
| Conference Date | 2012-03-07 - 2012-03-09 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | YRP |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Mobile Communication Workshop |
| Paper Information | |
| Registration To | SR |
| Conference Code | 2012-03-SR-RCS-SRW |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | An adjacent channel interference reduction technique using overlap FFT Filter-Bank for OFDMA signals in Cognitive Radio |
| Sub Title (in English) | |
| Keyword(1) | OFDMA |
| Keyword(2) | Overlap FFT |
| Keyword(3) | Filter-bank |
| Keyword(4) | Adjacent channel interference |
| Keyword(5) | Cognitive Radio |
| Keyword(6) | |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Tomonori Ohta |
| 1st Author's Affiliation | Ibaraki University (Ibaraki Univ.) |
| 2nd Author's Name | Masahiro Umehira |
| 2nd Author's Affiliation | Ibaraki University (Ibaraki Univ.) |
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| Speaker | Author-1 |
| Date Time | 2012-03-07 16:40:00 |
| Presentation Time | 25 minutes |
| Registration for | SR |
| Paper # | SR2011-120 |
| Volume (vol) | vol.111 |
| Number (no) | no.452 |
| Page | pp.113-117 |
| #Pages | 5 |
| Date of Issue | 2012-02-29 (SR) |
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