Abstract
Routing algorithms play a critical role in meeting both the stringent quality of service (QoS) requirements of guaranteed services and the certain QoS requirement of assured services over next-generation multiservice high-speed networks. In this paper, we propose the use of optimal least weight routing (OLWR) algorithm for routing QoS flows in high-speed networks. The main principle of our algorithm is that the choice of the most appropriate route is based on a set of parameters (least weight parameters) that estimate and consider the impact that the acceptance and routing decision of a call request belonging to a specific class would have on the network and other classes of service. Effective bandwidth, bandwidth and trunk reservation techniques, along with load balancing and packing trade-off considerations, are also introduced in the proposed routing algorithm. The performance evaluation of our algorithm is achieved via modeling and simulation of multiclass service routing in various network topologies. The performance results demonstrated that OLWR outperforms both the multihop least-loaded routing algorithms and the multihop most-loaded routing algorithms in terms of both revenue and carried load.
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Jiang, J., Papavassiliou, S. Providing End-to-End Quality of Service with Optimal Least Weight Routing in Next-Generation Multiservice High-Speed Networks. Journal of Network and Systems Management 10, 281–308 (2002). https://doi.org/10.1023/A:1019832809697
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DOI: https://doi.org/10.1023/A:1019832809697