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| Presentation | 2011-12-16 16:20 A PAPR reduction method on digital predistortion linearizer for compensating frequency dependent distortion components Junya Ohkawara, Yasunori Suzuki, Shoichi Narahashi (NTT DOCOMO)  RCS2011-263 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | This paper proposes a peak-to-average power ratio (PAPR) reduction method applied to a digital predistortion linearizer (DPDL) with a frequency characteristic compensator in order to further improve the inter-modulation distortion (IMD) components of a base station power amplifier (PA). The compensator generates in-band and out-of-band IMD compensation components. The point of the proposed method is that the compensator controls an amplitude and phase of the in-band IMD compensation component to reduce the PAPR of the input signal to the PA as well as to control those of the out-of-band IMD compensation components to compensate for the out-of-band IMD components. The DPDL can further compensate for the out-of-band IMD components when the PAPR is reduced if the output-backoff (OBO) of the PA is the same. This paper elucidates the phase of the in-band IMD compensation component to minimize the PAPR. Experimental results with a 5-MHz LTE signal and 2-GHz band 1-W class PA show that the proposed method can reduce the PAPR by 1.2 dB and can improve the adjacent channel leakage power ratio by 1.2 dB whereas the proposed method degrades the error vector magnitude by 5.1 % compared with the conventional method with the OBO of 10.2 dB. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | Base station / Power amplifier / Peak-to-average power ratio / Digital predistortion linearizer / / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 111, no. 345, RCS2011-263, pp. 183-186, Dec. 2011. | |
| Paper # | RCS2011-263 | |
| Date of Issue | 2011-12-08 (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) | |
| Download PDF | RCS2011-263 |
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| Conference Information | |
| Committee | NS RCS |
| Conference Date | 2011-12-15 - 2011-12-16 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Yamaguchi University |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Mobile Ad-hoc Network, Ubiquitous Network, Wireless Communication, security, Multi-Access Network |
| Paper Information | |
| Registration To | RCS |
| Conference Code | 2011-12-NS-RCS |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A PAPR reduction method on digital predistortion linearizer for compensating frequency dependent distortion components |
| Sub Title (in English) | |
| Keyword(1) | Base station |
| Keyword(2) | Power amplifier |
| Keyword(3) | Peak-to-average power ratio |
| Keyword(4) | Digital predistortion linearizer |
| Keyword(5) | |
| Keyword(6) | |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Junya Ohkawara |
| 1st Author's Affiliation | NTT DOCOMO, INC. (NTT DOCOMO) |
| 2nd Author's Name | Yasunori Suzuki |
| 2nd Author's Affiliation | NTT DOCOMO, INC. (NTT DOCOMO) |
| 3rd Author's Name | Shoichi Narahashi |
| 3rd Author's Affiliation | NTT DOCOMO, INC. (NTT DOCOMO) |
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| Speaker | Author-1 |
| Date Time | 2011-12-16 16:20:00 |
| Presentation Time | 25 minutes |
| Registration for | RCS |
| Paper # | RCS2011-263 |
| Volume (vol) | vol.111 |
| Number (no) | no.345 |
| Page | pp.183-186 |
| #Pages | 4 |
| Date of Issue | 2011-12-08 (RCS) |
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