The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
We demonstrate a failure-tolerant seed lightwave distribution system by using commercially-available ROADMs and a customized centralized controller. Ability of coherent communication with low DSP-complexity can be quickly and automatically restored against seed lightwave loss.
A strategy to strengthen the resiliency of optical networks against catastrophic disasters such as megaquakes or tsunamis is introduced. Two important aspects are endurance against damage in broad-area networks and the quick recovery of optical networks in devastated areas. In order to realize endurance in broad-area networks, optical packet switching integrated with circuit switching is proposed...
A strategy is introduced for endurance and quick recovery of devastated optical networks in order to strengthen their resiliency. As key technologies, optical packet switching integrated with circuit switching and emergency optical networks were adopted.
For the recovery of core optical transport networks after disaster, in this paper, we introduce an emergency optical network design problem. In this problem, we take account of both the interconnection of the surviving multi-vendor resources and the utilization of the emergency portable EDFAs. The surviving multi-vendor optical nodes [e.g., reconfigurable optical add/drop multiplexer (ROADM) or wavelength...
For the recovery of multi-layer networks after disaster, in this paper, we introduce two correlated planning problems which are based on the multi-vendor interconnection approach: 1) planning of emergency multi-layer network construction with the IP-over-Optical overlay model, and 2) planning of an operational process for control/management-plane (C&M-Plane) network recovery. We propose two corresponding...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.