Date Added: Mar 2012
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.