Hybrid inter-domain QoS routing with crankback mechanisms

Authors:
Ahmed Frikha;Samer Lahoud;Bernard Cousin
Affiliations:
University of Rennes, IRISA, Rennes Cedex, France;University of Rennes, IRISA, Rennes Cedex, France;University of Rennes, IRISA, Rennes Cedex, France
Venue:
NEW2AN'11/ruSMART'11 Proceedings of the 11th international conference and 4th international conference on Smart spaces and next generation wired/wireless networking
Year:
2011

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Abstract

In this paper we tackle the challenging problem of Quality of Service (QoS) routing in multiple domains. We propose a novel inter-domain QoS routing algorithm named HID-MCP. HID-MCP benefits from two major concepts that ensure high performance in terms of success rate and computational complexity. First, HID-MCP is a hybrid algorithm that combines the advantages of pre-computation and on-demand computation to obtain end-to-end QoS paths. Second, HIDMCP integrates crankback mechanisms for improving the path computation results in a single domain or in multiple domains. Extensive simulations confirm the efficiency of our algorithm on randomly generated topologies.