An efficient algorithm for reducing the number of Add-Drop Multiplexers in SONET/WDM rings

An efficient algorithm for reducing the number of Add-Drop Multiplexers in SONET/WDM rings This paper considers a network design problem introduced by Gerstel, Lin and Sasaki (INFOCOM'98) in which resource allocation is performed within a Wavelength Division Multiplexing (WDM) optical ring network to reduce overall equipment cost. The problem can be summarized as follows. The Add-Drop Multiplexers (ADM's) that are used to terminate lightpaths in an optical (SONET/SDH) ring are expensive. A naive implementation would require ADM's for each wavelength at each node. However, by carefully assigning connections to wavelengths and routing the resulting lightpaths, one may avoid terminating all wavelengths at every node, and thereby reduce the number of ADM's needed. While Gerstel et al. consider wavelength assignment with respect to this problem, they do not consider the additional complication of routing. In this paper, we consider joint routing and wavelength assignment, and show that the number of ADM's required is significantly less than the number resulting from applying the heuristics in Gerstel et al. Our algorithm analyzes connection requirements and, using a decomposition based on Euler paths, performs routing and wavelength assignment. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of High Speed Networks IOS Press

An efficient algorithm for reducing the number of Add-Drop Multiplexers in SONET/WDM rings

Journal of High Speed Networks, Volume 11 (1) – Jan 1, 2002

Loading next page...
 
/lp/ios-press/an-efficient-algorithm-for-reducing-the-number-of-add-drop-gXD8MMqlPT
Publisher
IOS Press
Copyright
Copyright © 2002 by IOS Press, Inc
ISSN
0926-6801
eISSN
1875-8940
Publisher site
See Article on Publisher Site

Abstract

This paper considers a network design problem introduced by Gerstel, Lin and Sasaki (INFOCOM'98) in which resource allocation is performed within a Wavelength Division Multiplexing (WDM) optical ring network to reduce overall equipment cost. The problem can be summarized as follows. The Add-Drop Multiplexers (ADM's) that are used to terminate lightpaths in an optical (SONET/SDH) ring are expensive. A naive implementation would require ADM's for each wavelength at each node. However, by carefully assigning connections to wavelengths and routing the resulting lightpaths, one may avoid terminating all wavelengths at every node, and thereby reduce the number of ADM's needed. While Gerstel et al. consider wavelength assignment with respect to this problem, they do not consider the additional complication of routing. In this paper, we consider joint routing and wavelength assignment, and show that the number of ADM's required is significantly less than the number resulting from applying the heuristics in Gerstel et al. Our algorithm analyzes connection requirements and, using a decomposition based on Euler paths, performs routing and wavelength assignment.

Journal

Journal of High Speed NetworksIOS Press

Published: Jan 1, 2002

There are no references for this article.

You’re reading a free preview. Subscribe to read the entire article.


DeepDyve is your
personal research library

It’s your single place to instantly
discover and read the research
that matters to you.

Enjoy affordable access to
over 18 million articles from more than
15,000 peer-reviewed journals.

All for just $49/month

Explore the DeepDyve Library

Search

Query the DeepDyve database, plus search all of PubMed and Google Scholar seamlessly

Organize

Save any article or search result from DeepDyve, PubMed, and Google Scholar... all in one place.

Access

Get unlimited, online access to over 18 million full-text articles from more than 15,000 scientific journals.

Your journals are on DeepDyve

Read from thousands of the leading scholarly journals from SpringerNature, Elsevier, Wiley-Blackwell, Oxford University Press and more.

All the latest content is available, no embargo periods.

See the journals in your area

DeepDyve

Freelancer

DeepDyve

Pro

Price

FREE

$49/month
$360/year

Save searches from
Google Scholar,
PubMed

Create lists to
organize your research

Export lists, citations

Read DeepDyve articles

Abstract access only

Unlimited access to over
18 million full-text articles

Print

20 pages / month

PDF Discount

20% off