期刊名称：International Journal of Computer Science Issues
印刷版ISSN：1694-0784
电子版ISSN：1694-0814
出版年度：2013
卷号：10
期号：6
出版社：IJCSI Press
摘要：Optical burst switching (OBS) technology is one of the promising solutions for the next generation Internet backbones. One of the major issues in the design of optical burst-switched networks is the estimation of the availability of network resources needed for the transmission of an input traffic while ensuring the required quality of service (QoS). A few works have addressed the availability issue in the design of OBS networks. In this paper, we present a novel scheme to estimate resources availability in an OBS network based on node architecture suitable for contention resolution and QoS provisioning. We develop a mathematical model to estimate the probability that the network or a network device is unavailable at a given point of time or during a time slot. Also, we perform a simulation study to validate the proposed scheme and give an idea about the effects of some network and traffic parameters on the availability of network resources and the provided QoS.
