Paper Abstract and Keywords |
Presentation |
2023-01-25 14:10
Differential OFDM with Parallel Blind Demodulation Employing Different Re-Samplers for Underwater Acoustic Communications Taichi Fujita, Hiroshi Kubo (Ritsumeikan Univ.) IT2022-63 SIP2022-114 RCS2022-242 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
Underwater acoustic communications (UWAC) suffer from double selectivity, where doubly-selective channels suffer from severe time and frequency selectivity simultaneously. UWAC channels can be approximated by sparse channels with multiple static paths with Doppler shifts. These channels can be simplified as 2-path static channels with Doppler shifts. This paper compares the performances of differential orthogonal frequency division multiplexing (OFDM) employing multiple differential detection (MDD) with channel prediction on the 2-path static channels. The authors reported that differential OFDMs employing MDD with channel prediction are suitable for double selectivity on the 2-path static channels. This paper shows that differential OFDMs with parallel blind demodulation employing different re-samplers can compensate for mismatch due to the average frequency offset on the 2-path static channels. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
Underwater Acoustic Communications / Blind / Automatic Frequency Control / Orthogonal Frequency Division Multiplexing / Channel Prediction / Multiple Differential Detection / Trellis-Coded Modulation / |
Reference Info. |
IEICE Tech. Rep., vol. 122, no. 357, RCS2022-242, pp. 196-201, Jan. 2023. |
Paper # |
RCS2022-242 |
Date of Issue |
2023-01-17 (IT, SIP, RCS) |
ISSN |
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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IT2022-63 SIP2022-114 RCS2022-242 |
Conference Information |
Committee |
IT RCS SIP |
Conference Date |
2023-01-24 - 2023-01-25 |
Place (in Japanese) |
(See Japanese page) |
Place (in English) |
Maebashi Terrsa |
Topics (in Japanese) |
(See Japanese page) |
Topics (in English) |
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Paper Information |
Registration To |
RCS |
Conference Code |
2023-01-IT-RCS-SIP |
Language |
Japanese |
Title (in Japanese) |
(See Japanese page) |
Sub Title (in Japanese) |
(See Japanese page) |
Title (in English) |
Differential OFDM with Parallel Blind Demodulation Employing Different Re-Samplers for Underwater Acoustic Communications |
Sub Title (in English) |
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Keyword(1) |
Underwater Acoustic Communications |
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Blind |
Keyword(3) |
Automatic Frequency Control |
Keyword(4) |
Orthogonal Frequency Division Multiplexing |
Keyword(5) |
Channel Prediction |
Keyword(6) |
Multiple Differential Detection |
Keyword(7) |
Trellis-Coded Modulation |
Keyword(8) |
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1st Author's Name |
Taichi Fujita |
1st Author's Affiliation |
Ritsumeikan University (Ritsumeikan Univ.) |
2nd Author's Name |
Hiroshi Kubo |
2nd Author's Affiliation |
Ritsumeikan University (Ritsumeikan Univ.) |
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Speaker |
Author-1 |
Date Time |
2023-01-25 14:10:00 |
Presentation Time |
25 minutes |
Registration for |
RCS |
Paper # |
IT2022-63, SIP2022-114, RCS2022-242 |
Volume (vol) |
vol.122 |
Number (no) |
no.355(IT), no.356(SIP), no.357(RCS) |
Page |
pp.196-201 |
#Pages |
6 |
Date of Issue |
2023-01-17 (IT, SIP, RCS) |