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Wide-Sense Nonblocking W-S-W Node Architectures for Elastic Optical Networks

Wojciech KABACIŃSKI, Mustafa ABDULSAHIB, Marek MICHALSKI

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Summary :

This paper considers wide-sense nonblocking operation of the Wavelength-Space-Wavelength elastic optical switch. Six control algorithms, based on functional spectrum decomposition in interstage links and functional decomposition of center stage switches, are proposed for two switching fabric architectures. For these algorithms we derived wide-sense nonblocking conditions and compared them with strict-sense nonblocking ones. The results show that the proposed algorithm reduces the required number of frequency slot units (FSUs) or center stage switches, depending on the switching fabric architecture. Savings occur even when connections use small number of frequency slot units.

Publication
IEICE TRANSACTIONS on Communications Vol.E102-B No.5 pp.978-991
Publication Date
2019/05/01
Publicized
2018/11/22
Online ISSN
1745-1345
DOI
10.1587/transcom.2018EUP0004
Type of Manuscript
Special Section PAPER (Special Section on European ICT R&D Project Activities on Broadband Access Technologies in Conjunction with Main Topics of 2016/2017 IEICE ICT Forum)
Category

Authors

Wojciech KABACIŃSKI
  the Poznan University of Technology
Mustafa ABDULSAHIB
  the Poznan University of Technology
Marek MICHALSKI
  the Poznan University of Technology

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