37 citations · 45 across the 4 of their papers we have counts for
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cs.IT2021★ 2 cited
End-to-End Learning of Joint Geometric and Probabilistic Constellation Shaping
Vahid Aref, Mathieu Chagnon
We present a novel autoencoder-based learning of joint geometric and probabilistic constellation shaping for coded-modulation systems. It can maximize either the mutual information…
cs.IT2016★ 37 cited
Demonstration of Fully Nonlinear Spectrum Modulated System in the Highly Nonlinear Optical Transmission Regime
Vahid Aref, Son T. Le, Henning Buelow
We report a 3 dB increase in the nonlinear threshold of a 64*0.5Gbaud 16-QAM continuous-nonlinear-spectrum modulated signal by nonlinear multiplexing with QPSK modulated multi-soli…
cs.IT2012★ 5 cited
Lossy Source Coding via Spatially Coupled LDGM Ensembles
Vahid Aref, Nicolas Macris, Rudiger Urbanke +1
We study a new encoding scheme for lossy source compression based on spatially coupled low-density generator-matrix codes. We develop a belief-propagation guided-decimation algorit…