| IEICE Technical Committee Submission System Conference Paper's Information |
Online Proceedings [Sign in] Tech. Rep. Archives |
| Go Top Page | Go Previous | [Japanese] / [English] |
| Paper Abstract and Keywords | ||
| Presentation | 2007-03-07 17:40 Effect of High-power Amplifier on OFDM/TDM Haris Gacanin, Fumiyuki Adachi (Tohoku Univ.)  RCS2006-254 |
|
| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | Recently, to reduce a high peak-to-average power ratio (PAPR) of OFDM we proposed OFDM combined with time division multiplexing (OFDM/TDM). Using the frequency-domain equalization (FDE), improved BER performance is achieved. Since the OFDM/TDM cannot completely solve the PAPR problem, some amount of input back-off (IBO) from the saturation point of high-power amplifier (HPA) may be required to reduce the signal distortion caused by the HPA nonlinearity. Moreover, if IBO is not carefuly chosen it may also affect the channel estimation (CE) required for FDE. In this paper, by computer simulation, we study the impact of HPA nonlinearity on OFDM/TDM with pilot-assisted CE over a frequency-selective fading channel. It is shown that the HPA nonlinearity increases the estimation error even when a pilot with constant amplitude in the time-domain is used. However, it is shown in this paper that if IBO is carefully chosen, OFDM/TDM allows lower IBO for the given BER in comparison with OFDM, leading to higher amplifier efficiency. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | OFDM/TDM / channel estimation / high-power amplifier / / / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 106, no. 555, RCS2006-254, pp. 77-80, March 2007. | |
| Paper # | RCS2006-254 | |
| Date of Issue | 2007-02-28 (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 | RCS2006-254 |
|
| Conference Information | |
| Committee | RCS MoNA WBS SR MW |
| Conference Date | 2007-03-07 - 2007-03-09 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | YRP |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Paper Information | |
| Registration To | RCS |
| Conference Code | 2007-03-RCS-MoMuC-WBS-SR-MW |
| Language | English (Japanese title is available) |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Effect of High-power Amplifier on OFDM/TDM |
| Sub Title (in English) | |
| Keyword(1) | OFDM/TDM |
| Keyword(2) | channel estimation |
| Keyword(3) | high-power amplifier |
| Keyword(4) | |
| Keyword(5) | |
| Keyword(6) | |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Haris Gacanin |
| 1st Author's Affiliation | Tohoku University (Tohoku Univ.) |
| 2nd Author's Name | Fumiyuki Adachi |
| 2nd Author's Affiliation | Tohoku University (Tohoku Univ.) |
| 3rd Author's Name | |
| 3rd Author's Affiliation | () |
| 4th Author's Name | |
| 4th Author's Affiliation | () |
| 5th Author's Name | |
| 5th Author's Affiliation | () |
| 6th Author's Name | |
| 6th Author's Affiliation | () |
| 7th Author's Name | |
| 7th Author's Affiliation | () |
| 8th Author's Name | |
| 8th Author's Affiliation | () |
| 9th Author's Name | |
| 9th Author's Affiliation | () |
| 10th Author's Name | |
| 10th Author's Affiliation | () |
| 11th Author's Name | |
| 11th Author's Affiliation | () |
| 12th Author's Name | |
| 12th Author's Affiliation | () |
| 13th Author's Name | |
| 13th Author's Affiliation | () |
| 14th Author's Name | |
| 14th Author's Affiliation | () |
| 15th Author's Name | |
| 15th Author's Affiliation | () |
| 16th Author's Name | |
| 16th Author's Affiliation | () |
| 17th Author's Name | |
| 17th Author's Affiliation | () |
| 18th Author's Name | |
| 18th Author's Affiliation | () |
| Speaker | Author-1 |
| Date Time | 2007-03-07 17:40:00 |
| Presentation Time | 20 minutes |
| Registration for | RCS |
| Paper # | RCS2006-254 |
| Volume (vol) | vol.106 |
| Number (no) | no.555 |
| Page | pp.77-80 |
| #Pages | 4 |
| Date of Issue | 2007-02-28 (RCS) |
[Return to Top Page]