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| Presentation | 2017-03-01 16:00 Feature detection scheme using Cyclic Prefix (CP) in OFDM Signal -- Hardware implementation of feature detector and its characteristics -- Akihide Nagamine (Titech), Kanshiro Kashiki (KDDI Research), Fumio Watanabe, Jiro Hirokawa (Titech)  SR2016-97 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | In the communication specification of the fifth generation mobile system, it is considered that frequency sharing will be examined, where several radio systems are operated. In order to promote such frequency effective system, a spectrum sensing technology with high performance is required. The authors have investigated the feature detection scheme using Cyclic Prefix (CP) in the OFDM signal. In this report, we implement this scheme in a hardware and investigate it using Radio Frequency (RF) signal. First, we address the design scheme appropriate for parameters in the embedded system. Then, we measure the signal feature value of an OFDM signal with varying the input C/N (Carrier to Noise power ratio) and investigate the probability performance regarding the signal detection. As a result, it is clarified that there exists an improvement limitation of the detection performance, which is achieved by the average operation in the signal processing. Such degradation matter has not been encountered in the past computer software simulation. We also describe that the limitation is analytically determined by the sampling rate error between at transmit and receive sides. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | OFDM signal / feature detection / Cyclic Prefix / hardware implementation / sampling rate error / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 116, no. 480, SR2016-97, pp. 35-40, March 2017. | |
| Paper # | SR2016-97 | |
| Date of Issue | 2017-02-22 (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 | SR2016-97 |
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| Conference Information | |
| Committee | RCS SR SRW |
| Conference Date | 2017-03-01 - 2017-03-03 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Tokyo Institute of Technology |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Mobile Communication Workshop |
| Paper Information | |
| Registration To | SR |
| Conference Code | 2017-03-RCS-SR-SRW |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Feature detection scheme using Cyclic Prefix (CP) in OFDM Signal |
| Sub Title (in English) | Hardware implementation of feature detector and its characteristics |
| Keyword(1) | OFDM signal |
| Keyword(2) | feature detection |
| Keyword(3) | Cyclic Prefix |
| Keyword(4) | hardware implementation |
| Keyword(5) | sampling rate error |
| Keyword(6) | |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Akihide Nagamine |
| 1st Author's Affiliation | Tokyo Institute of Technology (Titech) |
| 2nd Author's Name | Kanshiro Kashiki |
| 2nd Author's Affiliation | KDDI Research, Inc. (KDDI Research) |
| 3rd Author's Name | Fumio Watanabe |
| 3rd Author's Affiliation | Tokyo Institute of Technology (Titech) |
| 4th Author's Name | Jiro Hirokawa |
| 4th Author's Affiliation | Tokyo Institute of Technology (Titech) |
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| Speaker | Author-1 |
| Date Time | 2017-03-01 16:00:00 |
| Presentation Time | 25 minutes |
| Registration for | SR |
| Paper # | SR2016-97 |
| Volume (vol) | vol.116 |
| Number (no) | no.480 |
| Page | pp.35-40 |
| #Pages | 6 |
| Date of Issue | 2017-02-22 (SR) |
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