REPUBLIC OF SERBIA

MINISTRY OF DEFENCE

www.mod.gov.rs

MINISTRY OF DEFENCE

Material Resources Sector

Defensive Technologies Department

Military Technical Institute

www.vti.mod.gov.rs

Increasing availability in optical communication networks by proactive recovery

Jelena Pesic

Telecom Bretagne, Brest, France, jecapesic@gmail.com

Slavko pokorni

Information Technology School, Belgrade, Serbia, slavko.pokorni@its.edu.rs

Abstract: Communication networks are an essential part of current information and communication technology in civil and military applications. In most of these applications, it is of great importance that connections between the communicating users remain without a failure. So the reliability and availability of these networks are of great importance. In war environment, the most frequent reasons for the connections failures are links damages or cuts caused by air raids, artillery raids, etc. Resent research results show that damages or cuts of optical cables can be predicted using the method of machine learning, in order to act before instead of after cable damage. In this paper, we describe a method of proactive protection/restoration where the recovery is triggered before the optical fiber is cut. The advantage of the method is discussed with respect to its ability to improve network availability.

Key words: network availability, fiber cuts, proactive protection/restoration.