Paper Abstract and Keywords |
Presentation |
2013-03-01 15:10
Nonlinear Compensation by Predistortor using Feedback Signal with Limited Bandwidth Yuelin Ma, Yasushi Yamao, Yoshihiko Akaiwa (Univ. of Electro- Comm.) RCS2012-352 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
With the ever increasing demands for higher data rate, the bandwidth of wireless communication system has had to continuously increase to enable wideband communication. In this context, the digital predistortion (DPD) requires the use of high-speed analog-to-digital converters (ADCs), which tend to be the most expensive component in a transmitter with DPD, to sample the broadband feedback signal. It is believed that the sampling speed of the ADC has to be high enough to cover the out-of-band intermodulation components caused by nonlinear power amplifier (PA). However, it is revealed in this report that the out-of-band intermodulation caused by nonlinear PA is actually small component compared with in-band distortion. As a result, it is possible to perform PA modeling and predistortion using a low-rate ADC if the technique proposed in this paper is employed. Experimental results have demonstrated that the bandwidth of the feedback signal can be kept coherent with the original signal applying proposed technique. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
Digital predistortion / power amplifier modeling / ADC / feedback signal / band-limiting filter / / / |
Reference Info. |
IEICE Tech. Rep., vol. 112, no. 443, RCS2012-352, pp. 405-410, Feb. 2013. |
Paper # |
RCS2012-352 |
Date of Issue |
2013-02-20 (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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RCS2012-352 |
Conference Information |
Committee |
RCS SR SRW |
Conference Date |
2013-02-27 - 2013-03-01 |
Place (in Japanese) |
(See Japanese page) |
Place (in English) |
Waseda Univ. |
Topics (in Japanese) |
(See Japanese page) |
Topics (in English) |
Mobile Communication Workshop |
Paper Information |
Registration To |
RCS |
Conference Code |
2013-02-RCS-SR-SRW |
Language |
Japanese |
Title (in Japanese) |
(See Japanese page) |
Sub Title (in Japanese) |
(See Japanese page) |
Title (in English) |
Nonlinear Compensation by Predistortor using Feedback Signal with Limited Bandwidth |
Sub Title (in English) |
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Keyword(1) |
Digital predistortion |
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power amplifier modeling |
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ADC |
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feedback signal |
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band-limiting filter |
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1st Author's Name |
Yuelin Ma |
1st Author's Affiliation |
The Univeristy of Electro-Communications (Univ. of Electro- Comm.) |
2nd Author's Name |
Yasushi Yamao |
2nd Author's Affiliation |
The Univeristy of Electro-Communications (Univ. of Electro- Comm.) |
3rd Author's Name |
Yoshihiko Akaiwa |
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The Univeristy of Electro-Communications (Univ. of Electro- Comm.) |
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Speaker |
Author-1 |
Date Time |
2013-03-01 15:10:00 |
Presentation Time |
20 minutes |
Registration for |
RCS |
Paper # |
RCS2012-352 |
Volume (vol) |
vol.112 |
Number (no) |
no.443 |
Page |
pp.405-410 |
#Pages |
6 |
Date of Issue |
2013-02-20 (RCS) |
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