Wavelength Assignment for Concatenated ROADM Ring Networks and Switch Scale Reduction in a Concatenating Node

Kiyo Ishii; Hiroshi Hasegawa; Ken-ichi Sato

doi:10.1364/JOCN.2.000067

Journal of Optical Communications and Networking
Vol. 2,
Issue 1,
pp. 67-79
(2010)
•https://doi.org/10.1364/JOCN.2.000067

Wavelength Assignment for Concatenated ROADM Ring Networks and Switch Scale Reduction in a Concatenating Node

Kiyo Ishii, Hiroshi Hasegawa, and Ken-ichi Sato

Not Accessible

Your library or personal account may give you access

Get PDF
Email
Share
Get Citation
Copy Citation Text
Kiyo Ishii, Hiroshi Hasegawa, and Ken-ichi Sato, "Wavelength Assignment for Concatenated ROADM Ring Networks and Switch Scale Reduction in a Concatenating Node," J. Opt. Commun. Netw. 2, 67-79 (2010)

Export Citation
- BibTex
- Endnote (RIS)
- HTML
- Plain Text
Citation alert
Save article

Check for updates

Related Topics
Table of Contents Category
- Research Papers
Optics & Photonics Topics
?

The topics in this list come from the Optics and Photonics Topics applied to this article.

About this Article
History
- Original Manuscript: June 5, 2009
- Revised Manuscript: October 14, 2009
- Manuscript Accepted: November 13, 2009
- Published: December 24, 2009

Abstract

We propose a wavelength assignment algorithm that offers full-mesh node connectivity of two concatenated, bidirectional ring networks. This algorithm is proved to minimize the necessary number of wavelengths. We also describe three schemes that can reduce the switch scale at the ring-concatenating nodes: separation of intra-ring and inter-ring operation, hierarchical optical path switching, and introduction of efficient protection switching. We clarify that the proposed node architectures applying the described schemes reduce the switch size by 50% to 75% compared with the conventional arrangement.

Full Article | PDF Article

More Like This

Protection of Dynamic and Flexible Bandwidth on Demand in Metro Agile All-Optical Ring Networks

Wei Yang, Sofia A. Paredes, Henry Schriemer, and Trevor J. Hall
J. Opt. Commun. Netw. 1(2) A160-A169 (2009)

Dimensioning networks of ROADM cluster nodes

Hamid Mehrvar, Shiqiang Li, and Eric Bernier
J. Opt. Commun. Netw. 15(8) C166-C178 (2023)

Optical Networking Technologies That Will Create Future Bandwidth-Abundant Networks [Invited]

Ken-ichi Sato and Hiroshi Hasegawa
J. Opt. Commun. Netw. 1(2) A81-A93 (2009)

Previous Article Next Article

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (14)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Tables (2)

You do not have subscription access to this journal. Article tables are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Equations (5)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

	Type	Source Area	Destination Area	Direction in Rings		Number of Paths
	Type	Source Area	Destination Area	In Ring 1	In Ring 2	Number of Paths
From ring 1 to ring 2	1	A	C	Clockwise	Clockwise	$M_{1} M_{2}$
		Th1	C			$M_{2}$
		A	Th2			$M_{1}$
		Th1	Th2			1
	2	B	D	Counterclockwise	Counterclockwise	$M_{1} M_{2}$
		Th1	D			$M_{2}$
		B	Th2			$M_{1}$
	3	A	D	Clockwise	Counterclockwise	$M_{1} M_{2}$
	4	B	C	Counterclockwise	Clockwise	$M_{1} M_{2}$
From ring 2 to ring 1	$1^{'}$	D	B	Clockwise	Clockwise	$M_{1} M_{2}$
		D	Th1			$M_{2}$
		Th2	B			$M_{1}$
		Th2	Th1			1
	$2^{'}$	C	A	Counterclockwise	Counterclockwise	$M_{1} M_{2}$
		C	Th1			$M_{2}$
		Th2	A			$M_{1}$
	$3^{'}$	C	B	Clockwise	Counterclockwise	$M_{1} M_{2}$
	$4^{'}$	D	A	Counterclockwise	Clockwise	$M_{1} M_{2}$

	Strategy One	Strategy Two	Strategy Three	Strategy Four
Scheme 1 (traffic separation)	Yes	Yes	Yes	Yes
Scheme 2 (hierarchical switching)	No	Yes	No	Yes
Scheme 3 (restrict to only end-node switching)	No	No	Yes	Yes
Additional required functions		WB MUX/DEMUX WB switch		WB MUX/DEMUX WB switch
Constraints on traffic	Wavelength collision and the ratio of inter-ring traffic to total traffic
Adjacent-node switching protection capability	Possible for restoration of one failure per ring		Impossible
End-node switching protection capability	Possible for one failure per ring	Possible for one failure per concatenated ring	Possible for one failure per ring	Possible for one failure per concatenated ring

	Type	Source Area	Destination Area	Direction in Rings		Number of Paths
	Type	Source Area	Destination Area	In Ring 1	In Ring 2	Number of Paths
From ring 1 to ring 2	1	A	C	Clockwise	Clockwise	$M_{1} M_{2}$
		Th1	C			$M_{2}$
		A	Th2			$M_{1}$
		Th1	Th2			1
	2	B	D	Counterclockwise	Counterclockwise	$M_{1} M_{2}$
		Th1	D			$M_{2}$
		B	Th2			$M_{1}$
	3	A	D	Clockwise	Counterclockwise	$M_{1} M_{2}$
	4	B	C	Counterclockwise	Clockwise	$M_{1} M_{2}$
From ring 2 to ring 1	$1^{'}$	D	B	Clockwise	Clockwise	$M_{1} M_{2}$
		D	Th1			$M_{2}$
		Th2	B			$M_{1}$
		Th2	Th1			1
	$2^{'}$	C	A	Counterclockwise	Counterclockwise	$M_{1} M_{2}$
		C	Th1			$M_{2}$
		Th2	A			$M_{1}$
	$3^{'}$	C	B	Clockwise	Counterclockwise	$M_{1} M_{2}$
	$4^{'}$	D	A	Counterclockwise	Clockwise	$M_{1} M_{2}$

	Strategy One	Strategy Two	Strategy Three	Strategy Four
Scheme 1 (traffic separation)	Yes	Yes	Yes	Yes
Scheme 2 (hierarchical switching)	No	Yes	No	Yes
Scheme 3 (restrict to only end-node switching)	No	No	Yes	Yes
Additional required functions		WB MUX/DEMUX WB switch		WB MUX/DEMUX WB switch
Constraints on traffic	Wavelength collision and the ratio of inter-ring traffic to total traffic
Adjacent-node switching protection capability	Possible for restoration of one failure per ring		Impossible
End-node switching protection capability	Possible for one failure per ring	Possible for one failure per concatenated ring	Possible for one failure per ring	Possible for one failure per concatenated ring

Wavelength Assignment for Concatenated ROADM Ring Networks and Switch Scale Reduction in a Concatenating Node

Author Affiliations

Abstract

Cited By

Figures (14)

Tables (2)

Equations (5)

Journal of Optical Communications and Networking