Cluster-based Method for Eavesdropping Identification and Localization in Optical Links
This addresses security vulnerabilities in optical communication systems, though it appears incremental as it builds on existing monitoring techniques.
The paper tackled the problem of detecting and locating eavesdropping in optical links with small power losses, showing that detection can be done using receiver optical performance monitoring data, while localization requires in-line monitoring data.
We propose a cluster-based method to detect and locate eavesdropping events in optical line systems characterized by small power losses. Our findings indicate that detecting such subtle losses from eavesdropping can be accomplished solely through optical performance monitoring (OPM) data collected at the receiver. On the other hand, the localization of such events can be effectively achieved by leveraging in-line OPM data.