| 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 | 2021-10-08 09:20 A study on improving error-correction performance by combining signals received via satellite channel and IP network for 21-GHz-band satellite broadcasting Yuki Koizumi, Yoichi Suzuki, Masashi Kamei (NHK)  SAT2021-48 |
|
| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | We are developing a 21-GHz-band satellite-broadcasting system that has the capability of transmitting signals at bit rate of up to 725 Mbps with 300-MHz band width. Since the 21-GHz band suffers large rain attenuation, we are studying a satellite-broadcasting system that recovers lost signals due to rain attenuation by supplementing them via an IP network. In particular, we propose a technique, namely “log-likelihood ratio (LLR) sharing”, which enables successful error-correction by sharing LLRs of bits received via a satellite channel and an IP network even at low C/N, where error-correction in satellite channel is impossible due to rain attenuation. The feature of LLR sharing is that it uses the same LDPC codes in both channels and improves error-correction performance by adopting the higher LLR, which indicates the certainty of the received bit. The computer simulation results showed that LLR sharing improved the required C/N in satellite channel. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | 21-GHz-band satellite-broadcasting / LDPC codes / log-likelihood / binary erasure channel / / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 121, no. 189, SAT2021-48, pp. 28-31, Oct. 2021. | |
| Paper # | SAT2021-48 | |
| Date of Issue | 2021-09-30 (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 | SAT2021-48 |
|
| Conference Information | |
| Committee | SAT |
| Conference Date | 2021-10-07 - 2021-10-08 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Online |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Paper Information | |
| Registration To | SAT |
| Conference Code | 2021-10-SAT |
| Language | English |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A study on improving error-correction performance by combining signals received via satellite channel and IP network for 21-GHz-band satellite broadcasting |
| Sub Title (in English) | |
| Keyword(1) | 21-GHz-band satellite-broadcasting |
| Keyword(2) | LDPC codes |
| Keyword(3) | log-likelihood |
| Keyword(4) | binary erasure channel |
| Keyword(5) | |
| 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 | Masashi Kamei |
| 3rd Author's Affiliation | NHK (NHK) |
| 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 | 2021-10-08 09:20:00 |
| Presentation Time | 25 minutes |
| Registration for | SAT |
| Paper # | SAT2021-48 |
| Volume (vol) | vol.121 |
| Number (no) | no.189 |
| Page | pp.28-31 |
| #Pages | 4 |
| Date of Issue | 2021-09-30 (SAT) |
[Return to Top Page]