In this paper, we provide a systematic comparison of distribution matching (DM) and sphere
shaping (SpSh) algorithms for short blocklength probabilistic amplitude shaping. For …

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

The interaction between carrier phase recovery and probabilistic amplitude shaping (PAS)
in the nonlinear regime is investigated. We show that, for sufficiently high signal-to-noise …

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

In this paper, multi-dimensional distribution matching (MDDM) based on bit-level shaping is
proposed to implement probabilistic shaping (PS) for high order modulation formats. MDDM …

Probabilistic amplitude shaping—implemented through a distribution matcher (DM)—is an
effective approach to enhance the performance and the flexibility of bandwidth-efficient …

Probabilistic shaping is a pragmatic approach to improve the performance of coherent
optical fiber communication systems. In the nonlinear regime, the advantages offered by …

We proposed a new method for the rate loss reduction in the hierarchical distribution
matching (Hi-DM) approach for the constellation shaping. This method makes Hi-DM …

Probabilistic shaping (PS) has been widely studied and applied to optical fiber
communications. The encoder of PS expends the number of bit slots and controls the …

The design of the distribution matching (DM) encoder and decoder is essential in the
implementation of probabilistic shaping. Recently, techniques for low-complexity …