Research On Evaluation And Simulation On Optical Transport Networks

Optical transmission network has superior performance and good prospect in communication networks, and now optical transmission network has been an important part of the based transmission network in China. Network evaluation works as the foundation of the design, optimization and maintenance of optical transmission network. So research on it has very important practical significance. In network evaluations, we need a lot of network operating parameters to evaluate optical transmission network. But it is very difficult to obtain these data and the data will not be real-time response for the performance of the networks. In this case, network simulation, working as an emerging technology in research and development, can solve above problems significantly to reduce the total costs and improve real-time performance in the network.In this paper, evaluation and simulation technologies in optical transmission network are studied, and the main works of this paper include:First, we propose the method of stratified analysis to evaluate the optical transmission networks, and compared to the analytical methods used previously, it is more objective and accurate.Second, by the development of optical network planning software evaluation module, you can choose a different evaluation of the content, and use of different evaluation methods for individual evaluation and comprehensive evaluation.Third, the study of optical transmission network and network simulation software research is performed. By the use of OPNET network simulation software to complete the modeling and simulations of (Automatically Switched Optical Network) ASON network.