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| Presentation | 2022-08-25 16:15 [Encouragement Talk] Study on Error Correction in IP network to Compensate for Rain Attenuation in 21-GHz band Satellite Broadcasting Yuki Koizumi, Yoichi Suzuki, Tomoya Kusunoki, Kazunori Yokohata (NHK)  SAT2022-36 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | We are developing a diverse reception system (DRS) which compensates for the rain attenuation in 21-GHz band by recovering satellite signals in a rainy area where it occasionally cannot be received correctly with signals from a sunny area via a best-effort (BE) - IP network. While the widespread BE-IP network makes it easy to deploy the DRS because of cost advantage, the packet loss occurring in the IP network should be considered. We considered to apply the error-correction code in satellite broadcasting to packet loss in IP network. Moreover, considering an advantage of using common error-correction code for both channels, we proposed a technique, namely “log-likelihood ratio (LLR) sharing”, which improves service availability of DRS by sharing LLRs of bits received via a satellite channel and an IP network. In this report, we give an overview of DRS, and describe the structure of forward error correction encoder and decoder and its error-correction performance for an IP network. In addition, the mechanism of LLR sharing is explained and its effectiveness are demonstrated through computer simulation. |
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| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | Rain attenuation / 21GHz-band satellite broadcasting / Error correction / LDPC codes / LLR / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 122, no. 163, SAT2022-36, pp. 42-47, Aug. 2022. | |
| Paper # | SAT2022-36 | |
| Date of Issue | 2022-08-18 (SAT) | |
| 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 | SAT2022-36 |
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| Conference Information | |
| Committee | SAT RCS |
| Conference Date | 2022-08-25 - 2022-08-26 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Paper Information | |
| Registration To | SAT |
| Conference Code | 2022-08-SAT-RCS |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Study on Error Correction in IP network to Compensate for Rain Attenuation in 21-GHz band Satellite Broadcasting |
| Sub Title (in English) | |
| Keyword(1) | Rain attenuation |
| Keyword(2) | 21GHz-band satellite broadcasting |
| Keyword(3) | Error correction |
| Keyword(4) | LDPC codes |
| Keyword(5) | LLR |
| Keyword(6) | |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Yuki Koizumi |
| 1st Author's Affiliation | NHK (NHK) |
| 2nd Author's Name | Yoichi Suzuki |
| 2nd Author's Affiliation | NHK (NHK) |
| 3rd Author's Name | Tomoya Kusunoki |
| 3rd Author's Affiliation | NHK (NHK) |
| 4th Author's Name | Kazunori Yokohata |
| 4th Author's Affiliation | NHK (NHK) |
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| Speaker | Author-1 |
| Date Time | 2022-08-25 16:15:00 |
| Presentation Time | 25 minutes |
| Registration for | SAT |
| Paper # | SAT2022-36 |
| Volume (vol) | vol.122 |
| Number (no) | no.163 |
| Page | pp.42-47 |
| #Pages | 6 |
| Date of Issue | 2022-08-18 (SAT) |
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