Paper Abstract and Keywords |
Presentation |
2021-06-24 13:30
Comparison of Differential OFDM Systems Employing Multiple Differential Detection with Channel Prediction in Doubly Selective Channels Taichi Fujita, Kota Iwamoto, Hiroshi Kubo (Ritsumeikan Univ.) RCS2021-56 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
In this paper, we compare the performance of differential orthogonal frequency division multiplexing (OFDM) for underwater acoustic communications (UWAC), which is a doubly selective channel with severe time and frequency selectivity.
UWAC can be modelled as a sparse static channel with a large Doppler shift.Double differential OFDM has good performance when the Doppler shifts of each path in this channel are almost the same.However, when the Doppler shift of each path is different, the performance is degraded.
In this paper, we evaluate the performance of differential OFDM employing multiple differential detection with channel prediction when the Doppler shift of each path is different.The modulation schemes used are DQPSK, DBPSK, DTC8PSK, and DTCQPSK.Finally, computer simulations show that differential OFDM under consideration has good characteristics when there is a difference in the Doppler shift of each path. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
Orthogonal Frequency Division Multiplexing / Channel Prediction / Multiple Differential Detection / Trellis-Coded Modulation / Underwater Acoustic Communications / / / |
Reference Info. |
IEICE Tech. Rep., vol. 121, no. 72, RCS2021-56, pp. 163-168, June 2021. |
Paper # |
RCS2021-56 |
Date of Issue |
2021-06-16 (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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RCS2021-56 |
Conference Information |
Committee |
RCS |
Conference Date |
2021-06-23 - 2021-06-25 |
Place (in Japanese) |
(See Japanese page) |
Place (in English) |
Online |
Topics (in Japanese) |
(See Japanese page) |
Topics (in English) |
First Presentation in IEICE Technical Committee, Resource Control, Scheduling, Wireless Communications, etc. |
Paper Information |
Registration To |
RCS |
Conference Code |
2021-06-RCS |
Language |
Japanese |
Title (in Japanese) |
(See Japanese page) |
Sub Title (in Japanese) |
(See Japanese page) |
Title (in English) |
Comparison of Differential OFDM Systems Employing Multiple Differential Detection with Channel Prediction in Doubly Selective Channels |
Sub Title (in English) |
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Keyword(1) |
Orthogonal Frequency Division Multiplexing |
Keyword(2) |
Channel Prediction |
Keyword(3) |
Multiple Differential Detection |
Keyword(4) |
Trellis-Coded Modulation |
Keyword(5) |
Underwater Acoustic Communications |
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1st Author's Name |
Taichi Fujita |
1st Author's Affiliation |
Ritsumeikan University (Ritsumeikan Univ.) |
2nd Author's Name |
Kota Iwamoto |
2nd Author's Affiliation |
Ritsumeikan University (Ritsumeikan Univ.) |
3rd Author's Name |
Hiroshi Kubo |
3rd Author's Affiliation |
Ritsumeikan University (Ritsumeikan Univ.) |
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Speaker |
Author-1 |
Date Time |
2021-06-24 13:30:00 |
Presentation Time |
10 minutes |
Registration for |
RCS |
Paper # |
RCS2021-56 |
Volume (vol) |
vol.121 |
Number (no) |
no.72 |
Page |
pp.163-168 |
#Pages |
6 |
Date of Issue |
2021-06-16 (RCS) |
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