Next-Generation Optical Networks
To better exploit the capabilities of optical §technologies for high-bandwidth communication, there §is a need for next-generation optical networks, §which ideally could provide high-speed network §access and bandwidth-on-demand at reduced costs. One §promising technique to achieve this goal is §wavelength-division multiplexing (WDM) circuit §switching (flow switching), where optical circuits, §i.e., light-paths, are dynamically established at a §small time scale. Such a fast provisioning of light-§paths would use network resources efficiently by §adjusting to the rapidly changing needs of end §users, thus reduce the cost. In addition, it could §serve as a platform for new services and §applications. In this work, we focus on two §important research problems in next-generation §optical networks with flow switching: (1) §scalability of network management and control, and §(2) resilience/reliability of networks upon faults §and attacks. Our main technical approaches are §decision theory and probabilistic graphical models.