Best Effort Quality of Services Provided to Random Traffic Demands in WDM Networks
The authors consider the problem of the best effort Quality Of Service (QOS) provided to random traffic demands in WDM networks. In general, when a new random demand arrives at the network, this demand is accepted only based on the available network resources at its instant of arrival. In such a case, this random demand may be preempted if its assigned resources are reserved for future use by a scheduled demand. Consequently, random demands may be subject to high rejection ratio depending on the amount of reserved network resources.