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Paper Abstract and Keywords
Presentation 2020-08-25 10:25
Route, Core, and Spectrum assignment algorithm for SDM-Based Optical Path Networks
Yang Wang, Yojiro Mori, Hiroshi Hasegawa (Nagoya Univ.) PN2020-20
Abstract (in Japanese) (See Japanese page) 
(in English) Space division multiplexing (SDM) over multi-core fibers (MCFs) is advocated as a promising technology to overcome the capacity limit of the current single-core optical networks. However, the fragmentation of the spectrum in flexible-grid networks decreases the efficiency of the spectrum utilization. Moreover, the inter-core crosstalk (XT) in MCFs causes non-negligible signal impairment, which occurs whenever optical signals with overlapping spectra are transmitted in adjacent cores of an MCF. To enhance the maximum network capacity affected by spectrum utilization efficiency and the impact of inter-core crosstalk, a routing, core and spectrum assignment (RCSA) algorithm based on reinforcement learning is proposed for space-division multiplexing elastic optical path networks (SDM-EONs). The algorithm introduces two metrics that measure the spare capacity of the network in terms of the inter-core crosstalk in multi-core fibers and the efficiency of spectrum resource utilization. Numerical simulations indicate that it can enhance the network capacity by up to 46.8% and 10.4%, compared with two conventional schemes.
Keyword (in Japanese) (See Japanese page) 
(in English) Optical path networks / Space-division multiplexing / Network design / Routing and core and spectrum assignment / machine learning / reinforcement learning / /  
Reference Info. IEICE Tech. Rep., vol. 120, no. 137, PN2020-20, pp. 45-48, Aug. 2020.
Paper # PN2020-20 
Date of Issue 2020-08-17 (PN) 
ISSN Online edition: ISSN 2432-6380
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 PN  
Conference Date 2020-08-24 - 2020-08-25 
Place (in Japanese) (See Japanese page) 
Place (in English) Online 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To PN 
Conference Code 2020-08-PN 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Route, Core, and Spectrum assignment algorithm for SDM-Based Optical Path Networks 
Sub Title (in English)  
Keyword(1) Optical path networks  
Keyword(2) Space-division multiplexing  
Keyword(3) Network design  
Keyword(4) Routing and core and spectrum assignment  
Keyword(5) machine learning  
Keyword(6) reinforcement learning  
1st Author's Name Yang Wang  
1st Author's Affiliation Nagoya University (Nagoya Univ.)
2nd Author's Name Yojiro Mori  
2nd Author's Affiliation Nagoya University (Nagoya Univ.)
3rd Author's Name Hiroshi Hasegawa  
3rd Author's Affiliation Nagoya University (Nagoya Univ.)
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Speaker Author-1 
Date Time 2020-08-25 10:25:00 
Presentation Time 25 minutes 
Registration for PN 
Paper # PN2020-20 
Volume (vol) vol.120 
Number (no) no.137 
Page pp.45-48 
Date of Issue 2020-08-17 (PN) 

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