Information: Join today and make your research activities more affordable! Technical workshop participation fees and annual registration fees are available at member rates.
Notice: [Important] Announcement of Changes to Registration Fee Payment and Manuscript Upload Procedures for IEICE Technical Meetings
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 2025-04-24 13:35
Performance Improvement of LDM Transmission Scheme for Satellite Broadcasting -- Constellation Design Based on BICM Capacity --
Yuki Koizumi, Masashi Kamei (NHK) SAT2025-3
Abstract (in Japanese) (See Japanese page) 
(in English) We are developing a satellite broadcasting system with layered division multiplexing (LDM) that multiplexes multiple modulation signals with different power levels as injection level (IL) in the same channel with the aim of providing services flexibly in accordance with receiving quality. LDM consists of an upper layer (UL) with high power and a lower layer (LL) with low power, and it enables the transmission of signal with different levels of robustness and bit rate in the single channel.
So far, we have confirmed that rotating the constellation of the LL signal can improve the required C/N of the UL signal. This paper proposes a method to efficiently optimize the rotation angle of the LL signal’s constellation based on BICM capacity. Although LDM allows for the configuration of various parameters, such as modulation scheme, coding rate, IL, and rotation angle, this method optimizes the constellation of the LDM signal without requiring a performance evaluation for all parameter combinations related to the rotation angle.
Keyword (in Japanese) (See Japanese page) 
(in English) LDM / SIC / Satellite broadcasting / BICM capacity / Constellation / VVC / Spatial scalable video coding /  
Reference Info. IEICE Tech. Rep., vol. 125, no. 12, SAT2025-3, pp. 11-15, April 2025.
Paper # SAT2025-3 
Date of Issue 2025-04-17 (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 SAT2025-3

Conference Information
Committee CS CQ SAT  
Conference Date 2025-04-24 - 2025-04-25 
Place (in Japanese) (See Japanese page) 
Place (in English) KDDI restortion hole 201B/C room 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To SAT 
Conference Code 2025-04-CS-CQ-SAT 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Performance Improvement of LDM Transmission Scheme for Satellite Broadcasting 
Sub Title (in English) Constellation Design Based on BICM Capacity 
Keyword(1) LDM  
Keyword(2) SIC  
Keyword(3) Satellite broadcasting  
Keyword(4) BICM capacity  
Keyword(5) Constellation  
Keyword(6) VVC  
Keyword(7) Spatial scalable video coding  
Keyword(8)  
1st Author's Name Yuki Koizumi  
1st Author's Affiliation NHK (NHK)
2nd Author's Name Masashi Kamei  
2nd Author's Affiliation NHK (NHK)
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 ()
19th Author's Name  
19th Author's Affiliation ()
20th Author's Name  
20th Author's Affiliation ()
21st Author's Name  
21st Author's Affiliation ()
22nd Author's Name  
22nd Author's Affiliation ()
23rd Author's Name  
23rd Author's Affiliation ()
24th Author's Name  
24th Author's Affiliation ()
25th Author's Name  
25th Author's Affiliation ()
26th Author's Name / /
26th Author's Affiliation ()
()
27th Author's Name / /
27th Author's Affiliation ()
()
28th Author's Name / /
28th Author's Affiliation ()
()
29th Author's Name / /
29th Author's Affiliation ()
()
30th Author's Name / /
30th Author's Affiliation ()
()
31st Author's Name / /
31st Author's Affiliation ()
()
32nd Author's Name / /
32nd Author's Affiliation ()
()
33rd Author's Name / /
33rd Author's Affiliation ()
()
34th Author's Name / /
34th Author's Affiliation ()
()
35th Author's Name / /
35th Author's Affiliation ()
()
36th Author's Name / /
36th Author's Affiliation ()
()
Speaker Author-1 
Date Time 2025-04-24 13:35:00 
Presentation Time 20 minutes 
Registration for SAT 
Paper # SAT2025-3 
Volume (vol) vol.125 
Number (no) no.12 
Page pp.11-15 
#Pages 5 
Date of Issue 2025-04-17 (SAT) 

[Return to Top Page]

[Return to IEICE Web Page]
The Institute of Electronics, Information and Communication Engineers (IEICE), Japan