Results 21 to 30 of about 21,014 (291)
End-to-End Learning of Probabilistic Constellation Shaping Through Importance Sampling
IEEE Photonics Technology LettersProbabilistic constellation shaping enables easy rate adaption and has been proven to reduce the gap to Shannon capacity. Constellation point probabilities are optimized to maximize either the mutual information or the bit-wise mutual information. The optimization problem is however challenging even for simple channel models.
Shrinivas Chimmalgi +2 more
openaire +3 more sources
Supporting Probabilistic Constellation Shaping in 5G-NR Evolution
IEEE Transactions on Wireless CommunicationsIt is known that probabilistic constellation shaping (PCS) can provide a shaping-gain of 1.53dB asymptotically as signal-to-noise (SNR) increases. This is however, under ideal assumptions that the system operates in optimal sense and can achieve the ...
Sha Hu, Hao Wang, S. Semenov
semanticscholar +3 more sources
Sensitivity Gains by Mismatched Probabilistic Shaping for Optical Communication Systems [PDF]
, 2015 Probabilistic shaping of quadrature amplitude modulation (QAM) is used to enhance the sensitivity of an optical communication system. Sensitivity gains of 0.43 dB and 0.8 dB are demonstrated in back-to-back experiments by shaping of 16QAM and 64QAM ...
Alvarado, Alex +5 more
core +21 more sources
Temporal Probabilistic Constellation Shaping for WDM Optical Communication Systems [PDF]
, 2016 Finite state machine sources transmitting QPSK are studied as input to WDM optical fiber systems with ideal distributed Raman amplification. The probabilities of successive constellation symbols are shaped for nonlinear transmission and gains of around 500km (5-10%) are ...
Yankov, Metodi Plamenov +1 more
openaire +3 more sources
Reshaping the ISAC Tradeoff Under OFDM Signaling: A Probabilistic Constellation Shaping Approach [PDF]
IEEE Transactions on Signal Processing, 2023 Integrated sensing and communications is regarded as a key enabling technology in the sixth generation networks, where a unified waveform, such as orthogonal frequency division multiplexing (OFDM) signal, is adopted to facilitate both sensing and ...
Zhen Du +5 more
semanticscholar +1 more source
Joint Precoding and Probabilistic Constellation Shaping using Arithmetic Distribution Matching
GLOBECOM 2024 - 2024 IEEE Global Communications ConferenceThe problem of joint shaping and precoding is studied in this paper. We introduce statistical dependencies among consecutive symbols to shape the constellation while minimizing the total transmit power when the signal goes through the precoding filter. We propose a stationary Markovian model for optimizing the transition probability of transmit symbols
Ramin, Babaee +2 more
openaire +3 more sources
Performance-Enhanced DMT System With Joint Precoding and Probabilistic Constellation Shaping
IEEE Photonics Journal, 2021 The promising solution for short-reach optical communication, discrete multitone (DMT) system suffer from high peak-to-average power ratio (PAPR).
Tianhao Tong +6 more
doaj +1 more source
Adaptive Turbo Equalization of Probabilistically Shaped Constellations
2023 Optical Fiber Communications Conference and Exhibition (OFC), 2023 Fiber nonlinearity compensation of probabilistically shaped constellations with adaptive turbo equalization is investigated for the first time. Potential for more than 100% transmission reach extension is demonstrated by combining probabilistic shaping, single-channel digital backpropagation, and adaptive turbo equalization.
da Silva, Edson Porto +1 more
openaire +2 more sources
Joint Learning of Geometric and Probabilistic Constellation Shaping [PDF]
2019 IEEE Globecom Workshops (GC Wkshps), 2019 Accepted for presentation at the IEEE GLOBECOM ...
Stark, Maximilian +2 more
openaire +2 more sources
IEEE Access, 2023 A novel concept for single wavelength high spectral-efficient multi-dimensional optical transmission with geometric and probabilistic constellation shaping and bit mapping technique is presented in this study.
Jinwoo Park +3 more
doaj +1 more source