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Paper Abstract and Keywords
Presentation 2020-10-01 15:10
Fast Beamforming using Sparse Coding for mmWave Communications
Yitu Wang, Takayuki Nakachi (NTT Lab) SIS2020-19
Abstract (in Japanese) (See Japanese page) 
(in English) The sensitivity of mmWave to blockages together with its directionality bring new technical challenges in the vehicular context. Traditional beam training is inadequate in satisfying low communication overhead and small latency, and the influence of the same blockage on a fixed position varies according to vehicle motion. To facilitate fast beam alignment, fingerprint-based method stands out as an efficient solution, where the utilities of selecting different beam pairs are recorded in the fingerprint database for reference at a given position. In order to better orchestrate fingerprint-based method with vehicular scenarios, we propose the idea of trajectory-aware fingerprint, which extracts the combined effect of mobility, propagation environment, and blockages, so as to faithfully reflect the transmitting condition in mobile scenarios. Then, a light-weight machine learning framework is established for intelligent adaptation among multiple fingerprints to find a near-optimal BS association and beam alignment solution. Finally, the simulation result verifies the performance improvements.
Keyword (in Japanese) (See Japanese page) 
(in English) Milimeter wave / Dynamic environment / Fast beamforming / Fingerprint / Sparse coding / / /  
Reference Info. IEICE Tech. Rep., vol. 120, no. 176, SIS2020-19, pp. 48-53, Oct. 2020.
Paper # SIS2020-19 
Date of Issue 2020-09-24 (SIS) 
ISSN Online edition: ISSN 2432-6380
Copyright
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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)
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Conference Information
Committee SIS ITE-BCT  
Conference Date 2020-10-01 - 2020-10-02 
Place (in Japanese) (See Japanese page) 
Place (in English) Online 
Topics (in Japanese) (See Japanese page) 
Topics (in English) System Implementation Technology, Short Range Wireless Systems, Smart Multimedia Systems, Broadcasting Technology, etc. 
Paper Information
Registration To SIS 
Conference Code 2020-10-SIS-BCT 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Fast Beamforming using Sparse Coding for mmWave Communications 
Sub Title (in English)  
Keyword(1) Milimeter wave  
Keyword(2) Dynamic environment  
Keyword(3) Fast beamforming  
Keyword(4) Fingerprint  
Keyword(5) Sparse coding  
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1st Author's Name Yitu Wang  
1st Author's Affiliation NTT Laboratories (NTT Lab)
2nd Author's Name Takayuki Nakachi  
2nd Author's Affiliation NTT Laboratories (NTT Lab)
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Speaker Author-1 
Date Time 2020-10-01 15:10:00 
Presentation Time 20 minutes 
Registration for SIS 
Paper # SIS2020-19 
Volume (vol) vol.120 
Number (no) no.176 
Page pp.48-53 
#Pages
Date of Issue 2020-09-24 (SIS) 


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