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cs.NI2026
Fully Unsupervised Detection of Physical Contacts on Subsea Cables via State-of-Polarization Monitoring
Agastya Raj, Alvaro Doval, Tian Tian +2
We present a fully unsupervised Fast-Slow DSVDD detector for continuous State-of-Polarization monitoring on a deployed subsea cable. Trained without event labels, it ranks all five…
eess.SP2026
DAS-AIS Association Patterns for Vessel Monitoring on an Operational Subsea Fibre Link
Tian Tian, Agastya Raj, Lara Flanagan +4
We present a case study on the Emerald Fibre Bridge Link, an operational subsea telecom cable connecting Dublin and North Wales, examining DAS vessel-related signatures jointly wit…
eess.SP2026
Deep Learning Based Multi-Step Channel Prediction for Adaptive Underwater Acoustic OFDM Systems
Tian Tian, Ying Zhang, Agastya Raj +2
We develop an adaptive OFDM framework for underwater acoustic communications based on PatchCSI-T, a Transformer-based multistep channel prediction model with feature-independent mo…