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Paper Abstract and Keywords
Presentation 2023-02-17 14:10
A Study of Loop Interference Canceller for SC-FDE Wireless System with High Order Modulation
Masato Yokoi, Tomoyuki Suzuki, Hotaka Ogawa, Tomohiko Kimura, Hiroyuki Hamazumi (Tokyo Kosen)
Abstract (in Japanese) (See Japanese page) 
(in English) In recent years, the SC-FDE (Single Carrier - Frequency Domain Equalization) method, which is both highly efficient in power and robust against multi-path interference, has been attracting attention in mobile radio transmission. When relaying by the SC-FDE system using a single frequency with a booster, there is an advantage that a DF (Decode and Forward relay) system can be configured with no signal degradation caused by relaying. The authors have proposed a CLI (coupling loop interference) canceler that minimizes errors by calculating correlations between received and retransmitted signals, and have shown its effectiveness in low-order modulation [1]. However, there was a problem that the algorithm could not be applied for high-order modulation due to large steady-state errors after convergence. In this report, we propose a CLI cancellation algorithm using a unique word (UW) inserted as a reference signal in the SC-FDE transmit signal. We report on the results of computer simulations that steady-state errors can be reduced by the proposed system.
Keyword (in Japanese) (See Japanese page) 
(in English) SC-FDE / booster / relay / coupling loop interference canceller / / / /  
Reference Info. ITE Tech. Rep., vol. 47, no. 5, BCT2023-29, pp. 43-46, Feb. 2023.
Paper # BCT2023-29 
Date of Issue 2023-02-09 (BCT) 
ISSN Print edition: ISSN 1342-6893    Online edition: ISSN 2424-1970
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Conference Information
Committee BCT IEEE-BT  
Conference Date 2023-02-16 - 2023-02-17 
Place (in Japanese) (See Japanese page) 
Place (in English) Osaka Museum of History 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To BCT 
Conference Code 2023-02-BCT-BT 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) A Study of Loop Interference Canceller for SC-FDE Wireless System with High Order Modulation 
Sub Title (in English)  
Keyword(1) SC-FDE  
Keyword(2) booster  
Keyword(3) relay  
Keyword(4) coupling loop interference canceller  
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1st Author's Name Masato Yokoi  
1st Author's Affiliation National Institute of Technology, Tokyo College (Tokyo Kosen)
2nd Author's Name Tomoyuki Suzuki  
2nd Author's Affiliation National Institute of Technology, Tokyo College (Tokyo Kosen)
3rd Author's Name Hotaka Ogawa  
3rd Author's Affiliation National Institute of Technology, Tokyo College (Tokyo Kosen)
4th Author's Name Tomohiko Kimura  
4th Author's Affiliation National Institute of Technology, Tokyo College (Tokyo Kosen)
5th Author's Name Hiroyuki Hamazumi  
5th Author's Affiliation National Institute of Technology, Tokyo College (Tokyo Kosen)
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Speaker Author-1 
Date Time 2023-02-17 14:10:00 
Presentation Time 20 minutes 
Registration for BCT 
Paper # BCT2023-29 
Volume (vol) vol.47 
Number (no) no.5 
Page pp.43-46 
#Pages 4 
Date of Issue 2023-02-09 (BCT) 

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