Presentation 2012-03-12
Optical Node Architectures with Separated Add/Drop Switches Considering Colorless, Directionless and Contentionless Capabilities
Yoshiyuki YAMADA, Hiroshi HASEGAWA, Ken-ichi SATO,
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Abstract(in English) Deployment of single layer optical path networks that handle wavelength channels as a single entity is advancing because of continually traffic increase and low power consumption. Hierarchical optical path network that adopts waveband is recognized as a key technology to suppress the optical switch size and to meet the expected traffic expansion in the near future. For both single layer and hierarchical optical path networks, a large part of switches is devoted to realize add/drop operations for originating/terminating paths at nodes. In this paper, we propose new hierarchical optical node architectures that separate add/drop switches from the cross-connect part for routing and reconfiguration of optical paths. The proposed node architecture can not only reduce the total size of the cross-connect part but also minimize the add/drop switch scale for realizing colorless/directionless/contentionless capabilities by introducing a novel switch configuration based on waveband routing. Numerical results show that the proposed hierarchical node architecture can attain 45% switch size reduction at a maximum.
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Keyword(in English) Colorless/Directionless/Contentionless / Optical Node Architecture / Hierarchical Optical Path Network / Waveband / Waveband Add/Drop Ratio
Paper # PN2011-88
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Conference Date 2012/3/5(1days)
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Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Optical Node Architectures with Separated Add/Drop Switches Considering Colorless, Directionless and Contentionless Capabilities
Sub Title (in English)
Keyword(1) Colorless/Directionless/Contentionless
Keyword(2) Optical Node Architecture
Keyword(3) Hierarchical Optical Path Network
Keyword(4) Waveband
Keyword(5) Waveband Add/Drop Ratio
1st Author's Name Yoshiyuki YAMADA
1st Author's Affiliation Department of Electrical Engineering and Computer Science, Nagoya University()
2nd Author's Name Hiroshi HASEGAWA
2nd Author's Affiliation Department of Electrical Engineering and Computer Science, Nagoya University
3rd Author's Name Ken-ichi SATO
3rd Author's Affiliation Department of Electrical Engineering and Computer Science, Nagoya University
Date 2012-03-12
Paper # PN2011-88
Volume (vol) vol.111
Number (no) 475
Page pp.pp.-
#Pages 5
Date of Issue