Paper Abstract and Keywords |
Presentation |
2017-06-22 10:20
Performance Improvement of Coded OFDM with Insufficient Cyclic Prefix Masaya Arakawa, Hideki Ochiai (YNU) RCS2017-65 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
Orthogonal frequency-division multiplexing (OFDM) generally gains its resistance against channel delay spread by insertion of cyclic prefix (CP). In principle, the inter-symbol interference (ISI) can be avoided provided that the CP length is longer than that of the channel delay spread. However, the delay spread is not known a priori in general, and increase of CP length also decreases the spectral efficiency.
In this work, under the framework of coded OFDM, we mitigate the degradation caused by the excessive channel delay spread by appropriately adjusting the metric that takes into account the resulting signal-to-interference-plus-noise ratio (SINR). Furthermore, we attempt to optimize the CP length such that the throughput is maximized. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
OFDM / CP / LDPC code / SINR / throughput / / / |
Reference Info. |
IEICE Tech. Rep., vol. 117, no. 103, RCS2017-65, pp. 91-96, June 2017. |
Paper # |
RCS2017-65 |
Date of Issue |
2017-06-14 (RCS) |
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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RCS2017-65 |
Conference Information |
Committee |
RCS |
Conference Date |
2017-06-21 - 2017-06-23 |
Place (in Japanese) |
(See Japanese page) |
Place (in English) |
Ishigaki Shoukou Kaikan |
Topics (in Japanese) |
(See Japanese page) |
Topics (in English) |
First Presentation in IEICE Technical Committee, Railroad Communications, Inter-Vehicle Communications, Road to Vehicle Communications, Resource Control, Scheduling, Wireless Communication Systems, etc. |
Paper Information |
Registration To |
RCS |
Conference Code |
2017-06-RCS |
Language |
Japanese |
Title (in Japanese) |
(See Japanese page) |
Sub Title (in Japanese) |
(See Japanese page) |
Title (in English) |
Performance Improvement of Coded OFDM with Insufficient Cyclic Prefix |
Sub Title (in English) |
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Keyword(1) |
OFDM |
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CP |
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LDPC code |
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SINR |
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throughput |
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1st Author's Name |
Masaya Arakawa |
1st Author's Affiliation |
Yokohama national University (YNU) |
2nd Author's Name |
Hideki Ochiai |
2nd Author's Affiliation |
Yokohama national University (YNU) |
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Speaker |
Author-1 |
Date Time |
2017-06-22 10:20:00 |
Presentation Time |
10 minutes |
Registration for |
RCS |
Paper # |
RCS2017-65 |
Volume (vol) |
vol.117 |
Number (no) |
no.103 |
Page |
pp.91-96 |
#Pages |
6 |
Date of Issue |
2017-06-14 (RCS) |
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