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Optical Engineering

Routing connections with differentiated reliability requirements in wavelength-division multiplexing mesh networks with capacity sharing
Author(s): Hongbim Luo; Lemin Li; Hongfang Yu
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Paper Abstract

We address the problem of routing dynamic connections with differentiated reliability (DiR) requirements in wavelength-division multiplexing (WDM) mesh networks when spare capacity sharing is allowed. The problem is called routing with DiR (ROWD). In order to meet the reliability requirement of each connection request, not only an active path (AP) but also a backup path (BP) or a set of backup segments (BSs) should be derived. We propose two novel heuristics, single-protection-segment-based heuristic (SPBH) and auxiliary-graph-based heuristic (AGBH), for problem ROWD. While SPBH computes a single BS to protect the AP, AGBH computes as many BSs as necessary to protect the AP. Numerical results from extensive simulations demonstrate the good performance of the two algorithms.

Paper Details

Date Published: 1 September 2007
PDF: 9 pages
Opt. Eng. 46(9) 095009 doi: 10.1117/1.2786880
Published in: Optical Engineering Volume 46, Issue 9
Show Author Affiliations
Hongbim Luo, Univ. of Electronic Science and Technology of China (China)
Lemin Li, Univ. of Electronic Science and Technology of China (China)
Hongfang Yu, Univ. of Electronic Science and Technology of China (China)


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