Paper Abstract and Keywords |
Presentation |
2021-03-04 10:30
Performance Evaluation of Digital Pre-Distortion based Linearizer using Operation Point Estimation Pilot for Mobile Terminal in Non-linear HPA with AM/AM and AM/PM Characteristics Atsushi Masubuchi, Akira Tada, Masahiro Umehira, Xiaoyan Wang, Shigeki Takeda (Ibaraki Univ.) SRW2020-59 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
With the increase in uplink speeds and the use of millimeter wave bands, it is required to futher improve the power utilization efficiency of HPA (High Power Amplifier) in mobile terminals, in addition to spectrum efficiency. However, when HPAs are used with low OBO (Output Back Off), ACLP (Adjacent Channel Leakage Power) increases due to tis nonlinear characteristics, resulting in spectrum efficiency degradation. As a solution to solve this problem, the authors have proposed a DPD (Digital Pre-distortion) -based HPA linearizer using pilot signals to estimate and control the operating point of HPA without an auxiliary receiver for DPD control. This report describes performance evaluation of the proposed DPD-based HPA linearizer using the operation point estimation pilot when two HPA models with both AM/AM and AM/PM conversion characteristics are used and shows the operation point estimation performance and ACLP improvement |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
Pilot signal / AM/AM / AM/PM / Digital pre-distortion / ALCP / HPA / / |
Reference Info. |
IEICE Tech. Rep., vol. 120, no. 406, SRW2020-59, pp. 29-34, March 2021. |
Paper # |
SRW2020-59 |
Date of Issue |
2021-02-24 (SRW) |
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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SRW2020-59 |
Conference Information |
Committee |
RCS SR SRW |
Conference Date |
2021-03-03 - 2021-03-05 |
Place (in Japanese) |
(See Japanese page) |
Place (in English) |
Online |
Topics (in Japanese) |
(See Japanese page) |
Topics (in English) |
Mobile Communication Workshop |
Paper Information |
Registration To |
SRW |
Conference Code |
2021-03-RCS-SR-SRW |
Language |
Japanese |
Title (in Japanese) |
(See Japanese page) |
Sub Title (in Japanese) |
(See Japanese page) |
Title (in English) |
Performance Evaluation of Digital Pre-Distortion based Linearizer using Operation Point Estimation Pilot for Mobile Terminal in Non-linear HPA with AM/AM and AM/PM Characteristics |
Sub Title (in English) |
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Keyword(1) |
Pilot signal |
Keyword(2) |
AM/AM |
Keyword(3) |
AM/PM |
Keyword(4) |
Digital pre-distortion |
Keyword(5) |
ALCP |
Keyword(6) |
HPA |
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1st Author's Name |
Atsushi Masubuchi |
1st Author's Affiliation |
The Graduate School Ibaraki University (Ibaraki Univ.) |
2nd Author's Name |
Akira Tada |
2nd Author's Affiliation |
The Graduate School Ibaraki University (Ibaraki Univ.) |
3rd Author's Name |
Masahiro Umehira |
3rd Author's Affiliation |
The Graduate School Ibaraki University (Ibaraki Univ.) |
4th Author's Name |
Xiaoyan Wang |
4th Author's Affiliation |
The Graduate School Ibaraki University (Ibaraki Univ.) |
5th Author's Name |
Shigeki Takeda |
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The Graduate School Ibaraki University (Ibaraki Univ.) |
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Speaker |
Author-1 |
Date Time |
2021-03-04 10:30:00 |
Presentation Time |
25 minutes |
Registration for |
SRW |
Paper # |
SRW2020-59 |
Volume (vol) |
vol.120 |
Number (no) |
no.406 |
Page |
pp.29-34 |
#Pages |
6 |
Date of Issue |
2021-02-24 (SRW) |
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