Paper Abstract and Keywords |
Presentation |
2018-10-12 13:30
Effective PAPR Reduction Method in OFDM by Using Precoding Matrix Ryohei Iwasaki, Kouji Ohuchi (Shizuoka Univ.) WBS2018-18 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
An OFDM (Orthogonal Frequency Division Multiplexing) signal has a drawback of a high PAPR (Peak to Average Power Ratio). As one of the PAPR reduction methods, the precoding method was proposed.In this method, a low PAPR signal is generated by a multiplication of a matrix generated from ZC (Zadoff-Chu) sequence and a data symbol vector. The effect of the PAPR reduction is constant even when we use another matrix generated by a different parameter. The PTS (Partial Transmit Sequences) method is another PAPR reduction method, we partition subcarriers into some clusters and give some phase rotations in order to generate OFDM signals. We select the OFDM signal with the lowest PAPR.However, a lot of clusters and phase rotations are required in order to increase the effect of the PAPR reduction. As a result, an amount of calculation becomes enormous. The method which combines the PTS method and the precoding method was proposed (conventional method). In this paper, we consider that we apply the precoding method to the PTS method for the purpose of further reducing the PAPR.We show that the proposed method greatly reduces the number of candidate signals. Also, we show that the proposed method obtains a better effect of the PAPR reduction when we compare the proposed method with the conventional method. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
OFDM / PAPR / PTS / Precoding / Zadoff-Chu sequence / / / |
Reference Info. |
IEICE Tech. Rep., vol. 118, no. 235, WBS2018-18, pp. 1-6, Oct. 2018. |
Paper # |
WBS2018-18 |
Date of Issue |
2018-10-05 (WBS) |
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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WBS2018-18 |
Conference Information |
Committee |
WBS |
Conference Date |
2018-10-12 - 2018-10-12 |
Place (in Japanese) |
(See Japanese page) |
Place (in English) |
National Institute of Technology, Hiroshima College |
Topics (in Japanese) |
(See Japanese page) |
Topics (in English) |
Optical Wireless Communications, Visible Light Communication, etc. |
Paper Information |
Registration To |
WBS |
Conference Code |
2018-10-WBS |
Language |
Japanese |
Title (in Japanese) |
(See Japanese page) |
Sub Title (in Japanese) |
(See Japanese page) |
Title (in English) |
Effective PAPR Reduction Method in OFDM by Using Precoding Matrix |
Sub Title (in English) |
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OFDM |
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PAPR |
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PTS |
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Precoding |
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Zadoff-Chu sequence |
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1st Author's Name |
Ryohei Iwasaki |
1st Author's Affiliation |
Shizuoka University (Shizuoka Univ.) |
2nd Author's Name |
Kouji Ohuchi |
2nd Author's Affiliation |
Shizuoka University (Shizuoka Univ.) |
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Speaker |
Author-1 |
Date Time |
2018-10-12 13:30:00 |
Presentation Time |
25 minutes |
Registration for |
WBS |
Paper # |
WBS2018-18 |
Volume (vol) |
vol.118 |
Number (no) |
no.235 |
Page |
pp.1-6 |
#Pages |
6 |
Date of Issue |
2018-10-05 (WBS) |
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