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[Type 1 Only]
Emergency Maintenance from Oct. 22, 2026: The system function will be limited. We apologize for the inconvenience.
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 2025-01-30 09:30
Blind Self-Interference Analog Canceller with Differential Delay for Backscatter Communications in the Presence of Frequency Selective Interference
Koichi Nishikawa, Shinsuke Ibi (Doshisha Univ.), Takumi Takahashi (Osaka Univ.), Hisato Iwai (Doshisha Univ.) IT2024-56 SIP2024-95 RCS2024-239
Abstract (in Japanese) (See Japanese page) 
(in English) Backscatter communication is an ultra-low-power communication method in which a passive backscatter device (BD) receives a signal transmitted from a communication device (Node A), and reflects or absorbs the signal, allowing Node A to detect the signal from the BD. However, as in in-band full-duplex (IBFD) communications, SI cancellation is essential. In the previous study, it was demonstrated that a differential active SI canceller (DASIC) is effective for SI cancellation even in backscatter communications. However, the challenge remained that signal detection becomes difficult when the propagation time of the desired signal is unknown. Furthermore, DASIC faces the problem of residual SI when there is a delayed path of SI reflected within Node A's enclosure, resulting in insufficient SI cancellation. To address these challenges, this study adopts a maximum a-posteriori probability (MAP) detector, which enables signal detection even when the propagation time of the desired signal is unknown. In addition, we propose a novel method to perform DASIC in the analog domain and use small differential delay time to suppress residual SI. The efficacy of the proposed method is confirmed through computer simulations in terms of bit error rate (BER) performance.
Keyword (in Japanese) (See Japanese page) 
(in English) Backscatter communications / IBFD / self-interference analog canceller / maximum a-posteriori probability detection / / / /  
Reference Info. IEICE Tech. Rep., vol. 124, no. 366, RCS2024-239, pp. 174-179, Jan. 2025.
Paper # RCS2024-239 
Date of Issue 2025-01-22 (IT, SIP, 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 IT2024-56 SIP2024-95 RCS2024-239

Conference Information
Committee RCS SIP IT  
Conference Date 2025-01-29 - 2025-01-30 
Place (in Japanese) (See Japanese page) 
Place (in English) Kaikyou-messe 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Signal Processing for Wireless Communications, Learning, Mathematics, Information Theory, etc. 
Paper Information
Registration To RCS 
Conference Code 2025-01-RCS-SIP-IT 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Blind Self-Interference Analog Canceller with Differential Delay for Backscatter Communications in the Presence of Frequency Selective Interference 
Sub Title (in English)  
Keyword(1) Backscatter communications  
Keyword(2) IBFD  
Keyword(3) self-interference analog canceller  
Keyword(4) maximum a-posteriori probability detection  
Keyword(5)  
Keyword(6)  
Keyword(7)  
Keyword(8)  
1st Author's Name Koichi Nishikawa  
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.)
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 2025-01-30 09:30:00 
Presentation Time 25 minutes 
Registration for RCS 
Paper # IT2024-56, SIP2024-95, RCS2024-239 
Volume (vol) vol.124 
Number (no) no.364(IT), no.365(SIP), no.366(RCS) 
Page pp.174-179 
#Pages 6 
Date of Issue 2025-01-22 (IT, SIP, RCS) 

[Return to Top Page]

[Return to IEICE Web Page]

(Line Height for English Pages: 1)
The Institute of Electronics, Information and Communication Engineers (IEICE), Japan