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Abstract
This paper presents an efficient protection scheme to dynamically allocate restorable bandwidth-guaranteed paths in integrated IP-over-wavelength division multiplexing (WDM) networks. A restorable bandwidth-guaranteed path implies an active path and another link-disjoint backup path both with the required bandwidth. In this paper, we propose two integrated-routing algorithms: hop-based integrated-routing algorithm (HIRA) and bandwidth-based integrated-routing algorithm (BIRA) to allocate the paths. We use connection blocking probability and number of optical-electrical-optical (o-e-o) conversions as performance metrics. Through extensive simulation experiments, we demonstrate that our algorithms perform better than other existing approaches. © 2003 Elsevier B.V. All rights reserved.
Keywords
IP-over-WDM, Label switched path, Multi-protocol label switching, O-e-o conversions, Wavelength division multiplexing
Source Title
Computer Networks
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Date
2003-10-22
DOI
10.1016/S1389-1286(03)00275-5
Type
Article