NDLI: Reservation based wavelength assignment for sparse groomed optical WDM mesh networks

Content Provider	IEEE Xplore Digital Library
Author	Subramani, S.P. Sivalingam, K.M.
Copyright Year	2005
Description	Author affiliation: Dept. of CSEE, Maryland Univ., Baltimore, MD, USA (Subramani, S.P.; Sivalingam, K.M.)
Abstract	In this paper, we consider performance improvements for a sparse groomed wavelength routed optical wavelength division multiplexed (WDM) network. In such networks, the wavelength capacity per channel can be as high as 40 Gbps whereas the individual session requests can be much lower. Traffic grooming, that multiplexes several sessions on a wavelength, is a widely studied technique to reduce the effects of this capacity mismatch. In this paper, we consider an electronic traffic groomed network that consists of SONET/SDH groomers at the core optical cross connect (OXC) nodes. Since these groomers are expensive, reducing the number of groomers needed is an important design goal. A sparse groomed network is defined as one where only a subset of the core network nodes possess grooming capability in addition to optical switching; other nodes only possess optical switching and optical add/drop capabilities. In order to improve the overall blocking probability, we present a mechanism for reserving wavelengths between the grooming nodes in a network. The performance of the mechanism is studied using discrete event simulation techniques for various topologies and system parameters. The results show that when we reserve enough wavelengths for groomed traffic, the performance of the network is improved by up to 100% and up to 76% for ARPANET and NSFNET topologies respectively.
Starting Page	175
Ending Page	183
File Size	619936
Page Count	9
File Format	PDF
ISBN	0780392760
DOI	10.1109/ICBN.2005.1589613
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2005-10-07
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Wavelength assignment Optical fiber networks Wavelength division multiplexing WDM networks Mesh networks Telecommunication traffic Network topology Wavelength routing Channel capacity SONET
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
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
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
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