A QoS Network Routing Algorithm Using Multiple Pheromone Tables

Samih Tadrus, Bai Li

Research output: Chapter in Book/Report/Conference proceedingConference proceedingpeer-review

6 Citations (Scopus)


Quality-of-services routing algorithms that utilize probes are criticized for not being able to achieve optimal path selection for real-time flows. This is because probe-based algorithms do not have a global view of the network. We introduce a new probe-based routing algorithm for packet-switched networks that supports both best-effort and real-time flows. Unlike other probe-based algorithms, probes are routed via routing tables to achieve optimal performance. Simulations were carried out on QColony and other QoS probe-based routing systems under various network traffic loads and irregular network topologies. Simulation results, concerning resource utilization and connection request success rates, show that QColony provides good performance under heavy loads with failure conditions especially for large networks. We also introduce a novel approach for traffic protection in case of network failure conditions.
Original languageEnglish
Title of host publicationProceedings IEEE/WIC International Conference on Web Intelligence (WI 2003)
Number of pages7
ISBN (Print)0-7695-1932-6
Publication statusPublished - 27 Oct 2003
Externally publishedYes
EventIEEE/WIC International Conference on Web Intelligence - Halifax, Canada
Duration: 13 Oct 200417 Oct 2004


ConferenceIEEE/WIC International Conference on Web Intelligence
Abbreviated titleWI'03


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