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.
Cognition represents one of the ingredients to make up the future high-capacity heterogeneous optical networks. This paper provides three main contributions for a preliminary study of a Control and Management System (CMS) able to support the cognitive entity, named Cognitive Decision System (CDS). First of all, two architectural approaches to realize a cognitive optical network are presented. Secondly,...
In optical networks a group of logically distinct links can unintentionally share a physical resource (e.g, a cable or a duct). Such a group, called shared risk link group (SRLG), introduces a situation where a single failure of common resource can cause multiple failures. Failure of common resource usually occurs due to physical force (e.g, digging or earthquake) and causes failures of multiple links...
Free-space optical (FSO) and microwave telecommunication links have considerably adverse propagation characteristics. For radio waves that are operating in the millimeter wavelength one of the most harmful circumstantial factors is the attenuation caused by precipitation, especially by rain. However, for FSO links the main adverse effect is fog, being most responsible for the unavailability of FSO...
The paper presents a novel algorithm for the availability calculation of a ship optical communication network. The impact of the configuration of optical cable paths on the overall network availability is presented. By using availability data from existing networks, a modified expression for availability calculation is developed. It includes impact factors based on the cable network configuration...
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.