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IEEE Transactions on Communications
This paper proposes a probabilistic amplitude shaping (PAS) scheme with systematic cascaded staircase and Hamming codes (CSHC). The integration of low-complexity concatenated codes within PAS and the use of the SIHO decoder are enabled by applying the ...
Yutian Li +6 more
semanticscholar +1 more source
This paper proposes a probabilistic amplitude shaping (PAS) scheme with systematic cascaded staircase and Hamming codes (CSHC). The integration of low-complexity concatenated codes within PAS and the use of the SIHO decoder are enabled by applying the ...
Yutian Li +6 more
semanticscholar +1 more source
Interplay between fiber nonlinearity and probabilistic amplitude shaping
2023The maximum information rate of a communication channel, often referred to as the Shannon capacity, is achieved by optimizing the distribution of the transmitted symbols. Probabilistic constellation shaping is one principled approach to perform this optimization. Its fairly recently developed variant known as Probabilistic Amplitude Shaping (PAS) is of
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IEEE International Symposium on Personal, Indoor and Mobile Radio Communications
Block-code based probabilistic amplitude shaping (BC-PAS) replaces the distribution matcher (DM) in the original PAS scheme by utilizing a block code decoder. In the original paper of BC-PAS, Matsumine etc.
Chulong Liang +6 more
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Block-code based probabilistic amplitude shaping (BC-PAS) replaces the distribution matcher (DM) in the original PAS scheme by utilizing a block code decoder. In the original paper of BC-PAS, Matsumine etc.
Chulong Liang +6 more
semanticscholar +1 more source
2025 30th OptoElectronics and Communications Conference (OECC) and 2025 International Conference on Photonics in Switching and Computing (PSC)
We experimentally demonstrate 50-GBaud probabilistically shaped PAM4 via 5G NR LDPC-coded PAS over 20 km in IM/DD bandwidth-limited system, achieving up to 2.6 dB receiver sensitivity gain over uniformly distributed PAM4 post-FEC decoding and IDM.
Xiangchen Kong +7 more
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We experimentally demonstrate 50-GBaud probabilistically shaped PAM4 via 5G NR LDPC-coded PAS over 20 km in IM/DD bandwidth-limited system, achieving up to 2.6 dB receiver sensitivity gain over uniformly distributed PAM4 post-FEC decoding and IDM.
Xiangchen Kong +7 more
semanticscholar +1 more source
Neural Probabilistic Amplitude Shaping for Nonlinear Fiber Channels
arXiv.orgWe introduce neural probabilistic amplitude shaping, a joint-distribution learning framework for coherent fiber systems. The proposed scheme provides a 0.5 dB signal-to-noise ratio gain over sequence selection for dual-polarized 64-QAM transmission ...
Mohammad Taha Askari +2 more
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Optical Fiber Communications Conference and Exhibition, 2020
We experimentally demonstrate the transmission of 36-Gbaud probabilistically-shaped PAM-8 signal over 10-km link. The performance measured after FEC decoding and inverse distribution matcher shows that the receiver sensitivity is improved by >1 dB ...
Daeho Kim +4 more
semanticscholar +1 more source
We experimentally demonstrate the transmission of 36-Gbaud probabilistically-shaped PAM-8 signal over 10-km link. The performance measured after FEC decoding and inverse distribution matcher shows that the receiver sensitivity is improved by >1 dB ...
Daeho Kim +4 more
semanticscholar +1 more source
Probabilistic Shaping and Polar-Coded Pulse-Amplitude Modulation for Optical Communications
Advanced Photonics 2016 (IPR, NOMA, Sensors, Networks, SPPCom, SOF), 2016Probabilistic shaping is combined with coded pulse-amplitude modulation to improve the power- and spectral efficiency of intensity-modulated optical communications. q-ary Polar codes are considered to achieve a scheme well suited to rate adaptation.
Zifeng Wu, Berthold Lankl
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Microwave and Optical Technology Letters, 2020
AbstractWe propose a novel probabilistically shaped amplitude and pulse position modulation (APPM) based on stepped amplitude probability distribution for optical access networks. By adopting the probabilistic shaping (PS) technique, average signal power can be reduced and better bit error rate (BER) performance obtained.
Jingyi Zhang +9 more
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AbstractWe propose a novel probabilistically shaped amplitude and pulse position modulation (APPM) based on stepped amplitude probability distribution for optical access networks. By adopting the probabilistic shaping (PS) technique, average signal power can be reduced and better bit error rate (BER) performance obtained.
Jingyi Zhang +9 more
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Probabilistic Amplitude Shaping for IM/DD System Using Hard-Decision Decoding
2019 24th OptoElectronics and Communications Conference (OECC) and 2019 International Conference on Photonics in Switching and Computing (PSC), 2019We present an efficient way to apply the probabilistic amplitude shaping to intensity-modulation/direct-detection systems utilizing the Reed-Solomon hard-decision forward error correction. The shaping gain of up to 1 dB is achieved for PAM-8 signal.
Zonglong He +3 more
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Optical Engineering, 2019
An efficient procedure is presented for evaluating the effects of modulation format on the accumulation of nonlinear interference noise (NLIN) in probabilistically shaped 28 Gbaud 64-quadrature amplitude modulation (QAM) wavelength division multiplexed (WDM) systems.
Linan Li, Qi Zhang, Xiangjun Xin
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An efficient procedure is presented for evaluating the effects of modulation format on the accumulation of nonlinear interference noise (NLIN) in probabilistically shaped 28 Gbaud 64-quadrature amplitude modulation (QAM) wavelength division multiplexed (WDM) systems.
Linan Li, Qi Zhang, Xiangjun Xin
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