Minimizing Wavelength Conversions in WDM Path Establishment*

Minimizing Wavelength Conversions in WDM Path Establishment* This paper studies algorithms for connection establishment in wavelength division multiplexing networks. Although wavelength conversion capabilities are assumed at each node in the network, the goal of this research is to minimize or impose an upper bound on the number of wavelength conversions on the established path. Two types of schemes are investigated and compared. In the first scheme, the wavelengths are selected adaptively during path establishment on a given route, and in the second scheme, both the route and the wavelength assignment are selected optimally based on global information about path costs and wavelength availability in the network. We present two efficient algorithms for globally selecting routes and wavelengths, one finds the least cost route for a maximum number of wavelength conversions, and the other selects from among the shortest routes, the one with a minimum number of wavelength conversions. The results of comparing the two path establishment schemes show that, for dynamically changing traffic, the adaptive selection of wavelengths on a fixed route during path establishment is more beneficial than the optimal selection of the route and wavelengths prior to path establishment. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Photonic Network Communications Springer Journals

Minimizing Wavelength Conversions in WDM Path Establishment*

Loading next page...
 
/lp/springer_journal/minimizing-wavelength-conversions-in-wdm-path-establishment-Q8RcQFmb9O
Publisher
Kluwer Academic Publishers
Copyright
Copyright © 2001 by Kluwer Academic Publishers
Subject
Computer Science; Computer Communication Networks; Electrical Engineering; Characterization and Evaluation of Materials
ISSN
1387-974X
eISSN
1572-8188
D.O.I.
10.1023/A:1011490929017
Publisher site
See Article on Publisher Site

Abstract

This paper studies algorithms for connection establishment in wavelength division multiplexing networks. Although wavelength conversion capabilities are assumed at each node in the network, the goal of this research is to minimize or impose an upper bound on the number of wavelength conversions on the established path. Two types of schemes are investigated and compared. In the first scheme, the wavelengths are selected adaptively during path establishment on a given route, and in the second scheme, both the route and the wavelength assignment are selected optimally based on global information about path costs and wavelength availability in the network. We present two efficient algorithms for globally selecting routes and wavelengths, one finds the least cost route for a maximum number of wavelength conversions, and the other selects from among the shortest routes, the one with a minimum number of wavelength conversions. The results of comparing the two path establishment schemes show that, for dynamically changing traffic, the adaptive selection of wavelengths on a fixed route during path establishment is more beneficial than the optimal selection of the route and wavelengths prior to path establishment.

Journal

Photonic Network CommunicationsSpringer Journals

Published: Oct 9, 2004

References

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