Analysis and Detection of Jamming Attacks in an All-Optical Network

Existing supervisory schemes which can be used for detecting jamming attacks in all-optical networks are mostly based on average power detection and the use of pilot signals. We point out that these methods are not adequate to handle all types of jamming attacks. Based on a newly designed attack detection device at a network node, a novel attack detection scheme against jamming attacks is proposed. Preliminary results on the performance of the proposed attack detection scheme are given for both in-band and out-of-band jamming attacks. To analyze the performance of the attack detection scheme in further detail, we find, under certain conditions, the worst case in-band jamming attack scenarios which correspond to the smallest probabilities of being detected for a given value of average degraded bit error rate. We then investigate how our proposed attack detection scheme performs under the worst case in-band jamming attack scenarios. Finally, we make some modification to our attack detection scheme to improve its performance. Thesis Supervisor: Dr. Muriel Médard Title: MIT Lincoln Laboratory Staff Thesis Supervisor: Robert G. Gallager Title: Professor of EECS