NDLI: RINGOSTAR: an evolutionary AWG-based WDM upgrade of optical ring networks

Content Provider	IEEE Xplore Digital Library
Author	Herzog, M. Maier, M. Wolisz, A.
Copyright Year	1983
Abstract	The paper describes the study of the multichannel upgrade of IEEE Standard 802.17 Resilient Packet Ring (RPR) in particular and optical single-channel ring networks in general by making use of wavelength-division multiplexing (WDM). The paper describes and discusses a novel evolutionary multichannel upgrade approach that uses WDM on a central passive arrayed-waveguide grating (AWG)-based single-hop star network rather than on the ring. The AWG-based star subnetwork allows for a dramatically larger spatial reuse of WDM wavelength channels than conventional upgrades of optical single-channel ring networks that use WDM on the ring where all nodes need to be WDM upgraded. In the resultant hybrid optical ring-star network, termed RINGOSTAR, only a subset of the nodes are required to be WDM upgraded with a single additional tunable transceiver in order to improve the performance dramatically. The novel concept of proxy stripping is also introduced, which is used to route ring traffic on single-hop short cuts across the star subnetwork rather than the peripheral ring, resulting in a dramatically increased spatial reuse factor on the ring. By means of analysis, the performance of RINGOSTAR is investigated in terms of mean hop distance, spatial reuse, and capacity. The findings show that RINGOSTAR significantly outperforms unidirectional, bidirectional, and meshed WDM rings. Finally, the tradeoffs of RINGOSTAR are addressed.
Sponsorship	IEEE Lasers and Electro-Optics Society Optical Society of America
Starting Page	1637
Ending Page	1651
Page Count	15
File Size	594606
File Format	PDF
ISSN	07338724
Volume Number	23
Issue Number	4
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2005-04-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Wavelength division multiplexing Optical fiber networks Optical buffering Optical packet switching Telecommunication traffic High speed optical techniques Telecommunication network topology Arrayed waveguide gratings Metropolitan area networks Electronic mail WDM Arrayed-waveguide grating (AWG) buffer insertion rings destination stripping empty slot access medium access control (MAC) meshed rings metropolitan area networks (MANs) optical–electrical–optical (O/E/O) OOO Resilient Packet Ring (RPR) source stripping spatial reuse
Content Type	Text
Resource Type	Article
Subject	Atomic and Molecular Physics, and Optics

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
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3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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