A QoS-Based Scheme for Planning and Dimensioning of Optical Label Switched Networks

To support the growing demand for transmission, optical label switching (OLS) technology seems to be attractive due to its ability to allow fast switching and quality of service (QoS) support. Planning is a major issue in optical networks, since switch design and data transmission costs are essential criteria in OLS networks. In this paper, we use a novel OLS node architecture to build planning and dimensioning of OLS network based on a set of QoS parameters. We address the issue of providing the differentiated services to IP traffic through the use of optical buffering and link capabilities. We also formulate dimensioning and optimization problems using a conservation law and queuing model. Finally, we evaluate the performance of the proposed model through simulation.