Performance Analysis of Wavelength Routed Wide Area Networks

波长路由广域网将成为未来全光网络基础设施的一个组成部分。 据设想，这些网络将作为骨干网，为连接到它们的局域光波子网提供互连。 近年来，大量的研究工作致力于波长路由架构的设计和评估。 然而，将实现光网络的大规模互连的基础设施的部署提出了许多基本的和具有挑战性的问题，这些问题需要新颖的和创新的解决方案。 在这个建议中概述的研究计划确定了一些重大的，但在波长路由环境中出现的开放性问题，并提出了一个全面的和新颖的方法来解决这些问题。 所提出的研究的结果将是一个分析框架，这将使研究人员能够有效地计算呼叫阻塞概率在波长路由网络，评估波长分配政策和转换器的位置策略，研究路由算法的任意网络拓扑结构，并研究多播呼叫的性能。 工作的主要目标之一是确定潜在的公平性问题，可能会出现在这样的环境中，并采用路由，转换器的位置和波长分配策略的组合，以减轻这些问题，并确保公平对待所有的电话。

Wavelength routed wide area networks will be an integral part of the future of all-optical network infrastructures. It is envisioned that these networks will act as the backbone that provides the interconnection for local area lightwave sub-networks attached to them. A significant amount of research effort has been devoted to the design and evaluation of wavelength routed architectures in recent years. However, the deployment of an infrastructure that will enable large scale interconnection of optical networks raises a number of fundamental and challenging problems that require novel and innovative solutions. The research plan outlined in this proposal identifies a number of significant but open problems arising in wavelength routed environments, and presents a comprehensive and novel approach to address them. The outcome of the proposed research will be an analytical framework that will permit the researchers to efficiently compute call blocking probabilities in wavelength routed networks, evaluate wavelength assignment policies and converter placement strategies, investigate routing algorithms for arbitrary network topologies, and study the performance of multicast calls. One of the main objectives of the work is to identify potential fairness problems that may arise in such an environment, and to employ a combination of routing , converter placement, and wavelength assignment strategies to alleviate these problems and ensure fair treatment for all calls.