NDLI: Practical traffic grooming scheme for single-hub SONET/WDM rings

Content Provider	IEEE Xplore Digital Library
Author	Xiang-Yang Li Liwu Liu Peng-Jun Wan Frieder, O.
Copyright Year	2000
Description	Author affiliation: Dept. of Comput. Sci., Illinois Univ., Urbana, IL, USA (Xiang-Yang Li)
Abstract	In SONET/WDM networks, one fiber supports multiple wavelengths and each wavelength supports several low rate tributary streams. Traffic grooming is then defined as properly using the SONET add/drop multiplexer (ADM) to electronically multiplex and demultiplex required tributary traffic patterns with minimal resource cost (wavelengths and ADMs). This paper studies the traffic grooming problem in single hub SONET/WDM networks and extends existing results. We analyze the real deployments, generalize their results, and study the practical special cases. We prove that BLSR/2 would never be more expensive than UPSR under any traffic pattern. We present the exact minimum costs of uniform traffic in both UPSR and BLSR/2. We also give approximation algorithms for optimal grooming of non-uniform traffic after showing that this problem is NP-complete. Finally, we consider how to select the line speeds if there are two different line speeds available.
Sponsorship	IEEE Comput. Soc.
Starting Page	556
Ending Page	564
File Size	781043
Page Count	9
File Format	PDF
ISBN	0769509126
ISSN	07421303
DOI	10.1109/LCN.2000.891100
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2000-11-08
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	SONET Wavelength division multiplexing Computer science Telecommunication traffic Costs Add-drop multiplexers B-ISDN Optical fiber communication Optical fiber LAN Wide area networks
Content Type	Text
Resource Type	Article

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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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Practical traffic grooming scheme for single-hub SONET/WDM rings

Effective traffic grooming in WDM rings

Wavelength assignment in WDM rings with splitable lightpaths

A novel efficient technique for traffic grooming in WDM SONET with multiple line speeds

A genetic algorithm for traffic grooming in unidirectional SONET/WDM rings

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Traffic grooming in WDM SONET UPSR rings with multiple line speeds

Traffic partition in WDM/SONET rings to minimize SONET ADMs

Reducing electronic multiplexing costs in unidirectional SONET/WDM ring networks via efficient traffic grooming

Practical traffic grooming scheme for single-hub SONET/WDM rings

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