Hierarchical Distribution Matching for Probabilistic Amplitude Shaping [PDF]
Entropy, 2020 Probabilistic amplitude shaping—implemented through a distribution matcher (DM)—is an effective approach to enhance the performance and the flexibility of bandwidth-efficient coded modulations. Different DM structures have been proposed in the literature.
Stella Civelli, Marco Secondini
doaj +6 more sources
Achievable Information Rates for Probabilistic Amplitude Shaping: An Alternative Approach via Random Sign-Coding Arguments [PDF]
Entropy, 2020 Probabilistic amplitude shaping (PAS) is a coded modulation strategy in which constellation shaping and channel coding are combined. PAS has attracted considerable attention in both wireless and optical communications. Achievable information rates (AIRs)
Yunus Can Gültekin +2 more
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Performance of probabilistic amplitude shaping with BICM‐ID [PDF]
Electronics Letters, 2021 It is numerically shown that bit error rate (BER) performance of probabilistic amplitude shaping (PAS) applying a bit‐to‐symbol mapping of non‐Gray natural binary code assigned to 64‐quadrature amplitude modulation is significantly improved by bit ...
Akira Naka
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Bit-Metric Decoding of Non-Binary LDPC Codes with Probabilistic Amplitude Shaping [PDF]
IEEE Communications Letters, 2018 A new approach for combining non-binary low-density parity-check (NB-LDPC) codes with higher-order modulation and probabilistic amplitude shaping (PAS) is presented.
Böcherer, Georg +2 more
core +4 more sources
Bayesian Phase Search for Probabilistic Amplitude Shaping [PDF]
IET Conference Proceedings, 2023 We introduce a Bayesian carrier phase recovery (CPR) algorithm which is robust against low signal-to-noise ratio scenarios. It is therefore effective for phase recovery for probabilistic amplitude shaping (PAS).
Mohammad Taha Askari, Lutz Lampe
semanticscholar +3 more sources
Probabilistic Shaping for Finite Blocklengths: Distribution Matching and Sphere Shaping [PDF]
Entropy, 2020 In this paper, we provide a systematic comparison of distribution matching (DM) and sphere shaping (SpSh) algorithms for short blocklength probabilistic amplitude shaping. For asymptotically large blocklengths, constant composition distribution matching (
Yunus Can Gültekin +3 more
doaj +4 more sources
Symbol-Wise Puncturing for HARQ Integration With Probabilistic Amplitude Shaping [PDF]
IEEE Wireless Communications Letters, 2022 In this letter, we propose a symbol-wise puncturing scheme to support hybrid automatic repeat request (HARQ) integrated probabilistic amplitude shaping (PAS).
Li Shen +4 more
semanticscholar +3 more sources
Probabilistic Amplitude Shaping and Nonlinearity Tolerance: Analysis and Sequence Selection Method [PDF]
Journal of Lightwave Technology, 2022 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-dependent generation of nonlinear interference.
Mohammad Taha Askari, L. Lampe, J. Mitra
semanticscholar +3 more sources
Photonics, 2022 As a typical high-order modulation format optimization technology, constellation probability shaping enhances generalized mutual information (GMI) by optimizing the probability distribution of each constellation point of the signal.
Yao Zhang +3 more
doaj +2 more sources
Ultra-Sparse Non-Binary LDPC Codes for Probabilistic Amplitude Shaping [PDF]
GLOBECOM 2017 - 2017 IEEE Global Communications Conference, 2017 This work shows how non-binary low-density parity-check codes over GF($2^p$) can be combined with probabilistic amplitude shaping (PAS) (B\"ocherer, et al., 2015), which combines forward-error correction with non-uniform signaling for power-efficient ...
Böcherer, Georg +2 more
core +3 more sources