Constellation design with geometric and probabilistic shaping
Sign Up to like & getrecommendations! Published in 2018 at "Optics Communications"
DOI: 10.1016/j.optcom.2017.08.063
Abstract: Abstract A systematic study, including theory, simulation and experiments, is carried out to review the generalized pairwise optimization algorithm for designing optimized constellation. In order to verify its effectiveness, the algorithm is applied in three… read more here.
Keywords: constellation design; probabilistic shaping; geometric probabilistic; constellation ... See more keywords
A probabilistic shaping method based on intrinsic bit-level labeling and asymmetric polygon modulation for optical interconnects
Sign Up to like & getrecommendations! Published in 2019 at "Optics Communications"
DOI: 10.1016/j.optcom.2019.03.028
Abstract: Abstract This paper proposes a probabilistic shaping method based on intrinsic bit-level labeling and asymmetric polygon modulation for optical interconnects, which can significantly improve the system performance in power consumption and bit error rate. An… read more here.
Keywords: method based; optical interconnects; probabilistic shaping; shaping method ... See more keywords
On the Probabilistic Shaping and Geometric Shaping in Optical Communication Systems
Sign Up to like & getrecommendations! Published in 2019 at "IEEE Access"
DOI: 10.1109/access.2019.2897381
Abstract: We introduce and compare typical shaping schemes suitable for optical communications. The geometrically shaped-quadrature amplitude modulation (GS-QAM) formats are characterized by the non-equidistant spacing of constellation points, transmitted uniformly, and applied to improve system capacity.… read more here.
Keywords: probabilistic shaping; shaping geometric; geometric shaping; optical communication ... See more keywords
Dynamic and Flexible OFDM System Based on Joint Coded Modulation
Sign Up to like & getrecommendations! Published in 2020 at "IEEE Access"
DOI: 10.1109/access.2020.2993365
Abstract: An orthogonal frequency division multiplexing (OFDM) interconnected transmission system employing joint modulation of variable-order constellation compression and probabilistic shaping is proposed in this paper. In the proposed system, constant composition distribution matcher (CCDM) is utilized… read more here.
Keywords: system; constellation compression; probabilistic shaping; modulation ... See more keywords
Temporal Probabilistic Shaping for Mitigation of Nonlinearities in Optical Fiber Systems
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Lightwave Technology"
DOI: 10.1109/jlt.2017.2671452
Abstract: In this paper, finite state machine sources (FSMSs) are used to shape quadrature amplitude modulation (QAM) for nonlinear transmission in optical fiber communication systems. The previous optimization algorithm for FSMSs is extended to cover an… read more here.
Keywords: transmission; probabilistic shaping; shaping mitigation; mitigation nonlinearities ... See more keywords
Experimental Comparison of Probabilistic Shaping Methods for Unrepeated Fiber Transmission
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Lightwave Technology"
DOI: 10.1109/jlt.2017.2752243
Abstract: This paper studies the impact of probabilistic shaping on effective signal-to-noise ratios (SNRs) and achievable information rates (AIRs) in a back-to-back configuration and in unrepeated nonlinear fiber transmissions. For the back-to-back setup, various shaped quadrature… read more here.
Keywords: comparison probabilistic; shaping methods; transmission; probabilistic shaping ... See more keywords
Interplay of Probabilistic Shaping and the Blind Phase Search Algorithm
Sign Up to like & getrecommendations! Published in 2018 at "Journal of Lightwave Technology"
DOI: 10.1109/jlt.2018.2869245
Abstract: Probabilistic shaping (PS) is a promising technique to approach the Shannon limit using a typical constellation geometries. However, the impact of PS on the chain of signal processing algorithms of a coherent receiver still needs… read more here.
Keywords: phase; algorithm; blind phase; probabilistic shaping ... See more keywords
800G DSP ASIC Design Using Probabilistic Shaping and Digital Sub-Carrier Multiplexing
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Lightwave Technology"
DOI: 10.1109/jlt.2020.2996188
Abstract: The design of application-specific integrated circuits (ASIC) is at the core of modern ultra-high-speed transponders employing advanced digital signal processing (DSP) algorithms. This manuscript discusses the motivations for jointly utilizing transmission techniques such as probabilistic… read more here.
Keywords: dsp asic; sub carrier; carrier multiplexing; probabilistic shaping ... See more keywords
A Probabilistic Shaping Scheme for Bit-Interleaved Coded Modulation With Iterative Decoding
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Communications Letters"
DOI: 10.1109/lcomm.2022.3200727
Abstract: In this letter, a probabilistic shaping (PS) scheme for bit-interleaved coded modulation with iterative decoding (BICM-ID) between low density parity check (LDPC) decoder and demodulator is proposed. Compared to conventional LDPC-coded 8-quadrature amplitude modulation (QAM)… read more here.
Keywords: probabilistic shaping; interleaved coded; modulation; bit interleaved ... See more keywords
Probabilistic Shaping 44QAM Based on Many-to-One Mapping in DMT-WDM-PON
Sign Up to like & getrecommendations! Published in 2020 at "IEEE Photonics Technology Letters"
DOI: 10.1109/lpt.2020.2987628
Abstract: We introduce a probabilistic shaping (PS) 44-ary quadrature amplitude modulation (44QAM) based on many-to-one (MTO) mapping into a discrete multi-tone wavelength division multiplexing passive optical network (DMT-WDM-PON) with maximum shaping gain of 0.46 dB. A… read more here.
Keywords: 44qam based; probabilistic shaping; dmt wdm; wdm pon ... See more keywords
Joint Probabilistic Shaping and Beamforming Scheme for MISO VLC Systems
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Wireless Communications Letters"
DOI: 10.1109/lwc.2021.3134268
Abstract: We propose a joint probabilistic shaping and beamforming scheme to approach the channel capacity of multiple-input single-output (MISO) visible light communication (VLC) systems subject to both peak and average power constraints. In this scheme, unipolar… read more here.
Keywords: probabilistic shaping; joint probabilistic; beamforming scheme; shaping beamforming ... See more keywords