Probabilistic amplitude shaping (PAS) combines an outer shaping layer with an inner,
systematic forward error correction (FEC) layer to close the shaping gap. Proposed for PAS …

Nonlinear interference (NLI) generated during the propagation of an optical waveform
through the fiber depends on the fourth order standardized moment of the channel input …

The stationary statistical properties of independent, identically distributed (iid) input symbols
provide insights on the induced nonlinear interference (NLI) during fiber transmission. For …

Probabilistic amplitude shaping (PAS) proposed in Böcherer, Steiner, Schulte [24] is a
practical architecture for combining non-uniform distributions on higher-order constellations …

This tutorial reviews recent advances in probabilistic constellation shaping (PCS) with
particular focus on implementation perspectives. We analyze the complexity of several …

In this paper, we propose a practical adaptive coding modulation scheme to approach the
capacity of free-space optical (FSO) channels with intensity modulation/direct detection …

The performance of different probabilistic amplitude shaping (PAS) techniques in the
nonlinear regime is investigated, highlighting its dependence on the PAS block length and …

Recently, a metric called energy dispersion index (EDI) was proposed to qualitatively
indicate the nonlinear interference (NLI) induced by correlated symbols during optical …

Probabilisticshaping is, nowadays, a pragmatic and popular approach to improve the
performance of coherent optical fiber communication systems. In the linear regime, the …

Probabilistic amplitude shaping (PAS) is a practical means to achieve a shaping gain in
optical fiber communication. However, PAS and shaping in general also affect the signal …