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| Presentation | 2021-08-31 14:50 Evaluation of power adaptive IQ multiplexed 16QAM method for downlink transmission of coherent PON system Mizuki Inagaki (Kagawa Univ.), Ryosuke Matsumoto (AIST), Takahiro Kodama (Kagawa Univ.)  PN2021-24 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | In the downlink transmission of a coherent PON system using QAM modulation, when IQ multiplexing, which allocates I-axis and Q-axis information to different ONUs, is applied, excess power is distributed to ONUs close to the OLT. We used the adaptive IQ multiplexing method, allocating the optimum power to each IQ axis for two ONU pairs with a distance difference. In the digital signal processing on the receiving side, an FFT-based algorithm was used for frequency offset compensation, and a PLL-based algorithm was used for carrier phase synchronization. In this paper, we numerically show 2.7 dB power efficiency improvement compared to conventional 16QAM signal by using the adaptive IQ multiplexed 16QAM signal in the case of the 50 km difference between two ONUs. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | Digital coherent optical transmission / passive optical network (PON) / 16-ary quadrature amplitude modulation (16QAM) / / / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 121, no. 165, PN2021-24, pp. 69-73, Aug. 2021. | |
| Paper # | PN2021-24 | |
| Date of Issue | 2021-08-23 (PN) | |
| 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) | |
| Download PDF | PN2021-24 |
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| Conference Information | |
| Committee | PN |
| Conference Date | 2021-08-30 - 2021-08-31 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Online |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Paper Information | |
| Registration To | PN |
| Conference Code | 2021-08-PN |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Evaluation of power adaptive IQ multiplexed 16QAM method for downlink transmission of coherent PON system |
| Sub Title (in English) | |
| Keyword(1) | Digital coherent optical transmission |
| Keyword(2) | passive optical network (PON) |
| Keyword(3) | 16-ary quadrature amplitude modulation (16QAM) |
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| Keyword(8) | |
| 1st Author's Name | Mizuki Inagaki |
| 1st Author's Affiliation | Kagawa University (Kagawa Univ.) |
| 2nd Author's Name | Ryosuke Matsumoto |
| 2nd Author's Affiliation | National Institute of Advanced Industrial Science and Technology (AIST) |
| 3rd Author's Name | Takahiro Kodama |
| 3rd Author's Affiliation | Kagawa University (Kagawa Univ.) |
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| Speaker | Author-1 |
| Date Time | 2021-08-31 14:50:00 |
| Presentation Time | 25 minutes |
| Registration for | PN |
| Paper # | PN2021-24 |
| Volume (vol) | vol.121 |
| Number (no) | no.165 |
| Page | pp.69-73 |
| #Pages | 5 |
| Date of Issue | 2021-08-23 (PN) |
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