Semi-Blind Signal Recovery in Impulsive Noise with L1-PCA

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Authors A. Gannon, George Sklivanitis, P. Markopoulos, D. Pados, S. Batalama
Journal/Conference Name 2
Paper Category
Paper Abstract The time-varying nature of the underwater acoustic channel typically requires the use of frequent channel re-training and tracking at the receiver, which increases communication over-head due to pilot signaling and reduces overall system spectral efficiency. At the same time, underwater acoustic communication links are subject to both man-made and natural noise sources that may exhibit impulsive characteristics. We investigate the performance of blind signal recovery based on L2-norm principal-component analysis (PCA) and propose a new receiver design based on L1-norm PCA. We evaluate the performance of both blind and pilot-based signal recovery mechanisms in terms of bit-error rate (BER) under simulated underwater acoustic channels and impulsive noise conditions due to snapping shrimp.
Date of publication 2018
Code Programming Language Matlab

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