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| Presentation | 2020-06-25 13:00 A Study on DLDC-Aided Joint Signal Processing for Unified Optical and Wireless Channels Yoshikatsu Wakabayashi, Shinsuke Ibi (Doshisha Univ.), Takumi Takahashi (Osaka Univ.), Hisato Iwai (Doshisha Univ.)  RCS2020-35 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | One of the solutions for utilizing the high-frequency band is to deploy multiple distributed units (DU) under a central unit (CU) in cloud radio access network (C-RAN) architecture. In the case of the uplink from the terminal to the CU, wireless links are established between the mobile terminal and DU. On the other hand, optical fibers are connected between the DU and CU. In the sense of end-to-end points, the link between terminals and CU is a kind of relay communication. When PDM (Polarization Division Multiplexing) communication is used for optical communications, it is possible to construct a multiple-input multiple-output (MIMO) channels in the fiber. In this configuration, both DU and CU need to detect MIMO signals, which causes severe signal processing delay. In this paper, to improve the responsiveness, it is assumed that the DU does not detect the signal, but simply transfers and only the CU detects the signal. At this time, it is effective to perform blind signal detection after unifying the wireless space and the optical space as one MIMO channel. In order to realize this idea, we propose a method of demodulating in CU using DLDC (Differential Linear Dispersion Code) and confirm its effectiveness. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | Optical-wireless channel / MIMO / PDM / DLDC / OFDM / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 120, no. 74, RCS2020-35, pp. 73-77, June 2020. | |
| Paper # | RCS2020-35 | |
| Date of Issue | 2020-06-17 (RCS) | |
| 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 | RCS2020-35 |
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| Conference Information | |
| Committee | RCS |
| Conference Date | 2020-06-24 - 2020-06-26 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Online |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | First Presentation in IEICE Technical Committee, Resource Control, Scheduling, Wireless Communications, etc. |
| Paper Information | |
| Registration To | RCS |
| Conference Code | 2020-06-RCS |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A Study on DLDC-Aided Joint Signal Processing for Unified Optical and Wireless Channels |
| Sub Title (in English) | |
| Keyword(1) | Optical-wireless channel |
| Keyword(2) | MIMO |
| Keyword(3) | PDM |
| Keyword(4) | DLDC |
| Keyword(5) | OFDM |
| Keyword(6) | |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Yoshikatsu Wakabayashi |
| 1st Author's Affiliation | Doshisha University (Doshisha Univ.) |
| 2nd Author's Name | Shinsuke Ibi |
| 2nd Author's Affiliation | Doshisha University (Doshisha Univ.) |
| 3rd Author's Name | Takumi Takahashi |
| 3rd Author's Affiliation | Osaka University (Osaka Univ.) |
| 4th Author's Name | Hisato Iwai |
| 4th Author's Affiliation | Doshisha University (Doshisha Univ.) |
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| Speaker | Author-1 |
| Date Time | 2020-06-25 13:00:00 |
| Presentation Time | 25 minutes |
| Registration for | RCS |
| Paper # | RCS2020-35 |
| Volume (vol) | vol.120 |
| Number (no) | no.74 |
| Page | pp.73-77 |
| #Pages | 5 |
| Date of Issue | 2020-06-17 (RCS) |
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