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Nonparameter Nonlinear Phase Noise Mitigation by Using M-ary Support Vector Machine for Coherent Optical Systems
2013
IEEE Photonics Journal
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Index Terms: Nonlinear phase noise, quadratic amplitude modulation (QAM), support vector machine (SVM), M-ary SVM. ...
The NLPN tolerance of the system can be improved by using the M-ary SVM to conduct nonlinear detection. ...
Conclusion In this paper, the M-ary SVM is employed as a non-parameter detection scheme for 16-QAM coherent optical systems. ...
doi:10.1109/jphot.2013.2287565
fatcat:f5ouiafop5csnc7vwmggu64koq
A Survey on Design and Performance of Higher-Order QAM Constellations
[article]
2020
arXiv
pre-print
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with different constellation orders are presented. ...
For odd power of 2 constellations, rectangular QAM (RQAM) is commonly used. ...
probability and SER of M -ary PSK and M -ary QAM constellations. ...
arXiv:2004.14708v1
fatcat:okupeb57cnaa3kjf3gyzhludde
Beyond 100 Gb∕s Optical Transmission Based on Polarization Multiplexed Coded-OFDM With Coherent Detection
2009
Journal of Optical Communications and Networking
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We propose a coded-modulation scheme suitable for beyond 100 Gb/ s transmission and 100 Gb/ s Ethernet. ...
to fiber nonlinearities. ...
ACKNOWLEDGMENT This work is supported in part by the National Science Foundation under grant IHCS-0725405 and in part by NEC Laboratories America. ...
doi:10.1364/jocn.1.000050
fatcat:qtygc2hkh5d5biw5oabynr3ffm
Unified Bit-based Probabilistic Data Association aided MIMO detection for high-order QAM
2011
2011 IEEE Wireless Communications and Networking Conference
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A unified Bit-based Probabilistic Data Association (B-PDA) detection approach is proposed for Multiple-Input Multiple-Output (MIMO) systems employing high-order Quadrature Amplitude Modulation (QAM). ...
Both linear natural and nonlinear Gray bit-to-symbol mapping schemes are considered. ...
In this situation, the SER is a useful metric, which is widely adopted in the literature regarding high-order M -ary signaling detection in MIMO systems, as seen in [4] and [7] . ...
doi:10.1109/wcnc.2011.5779379
dblp:conf/wcnc/YangLH11
fatcat:gzltzedccjfzddj55dtvblolf4
Proposal to Achieve 1 Tb/s per Wavelength Transmission Using Three-Dimensional LDPC-Coded Modulation
2008
IEEE Photonics Technology Letters
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Index Terms-Coherent detection, high-speed optical transmission, low-density parity-check (LDPC) codes, 100G Ethernet, optical communications, three-dimensional (3-D) coded modulation (CM). ...
The proposed scheme introduces significant performance improvement of up to 4.1 dB at a bit-error ratio of 10 9 over the corresponding two-dimensional scheme. ...
The receiver shown in Fig. 1(b) is a hybrid receiver; we use direct detection for the amplitude , while we prefer the use of coherent detection for and in order to avoid differential detection penalty ...
doi:10.1109/lpt.2008.920024
fatcat:asignloj4rd2nmtqix54toxehq
Undersampled Pulse Width Modulation for Optical Camera Communications
2018
2018 IEEE International Conference on Communications Workshops (ICC Workshops)
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for nonlinear distortion caused by the in-built gamma correction function of the camera. ...
Similar to other undersamplebased modulation schemes for OCC, a dedicated preamble is required to assist the receiver to indicate the phase error introduced during the undersampling process, and to compensate ...
For the analogue LED driver based modulation schemes such as undersampled m-ary pulse amplitude modulation (UPAM) [11, 12] and undersampled m-ary colour shift keying (UCSK) [13] se = log2(m) bit/frame ...
doi:10.1109/iccw.2018.8403732
dblp:conf/icc/LuoJHGZ18
fatcat:kswpfhmykvg7vo3gwqd2dgipay
A Survey on Higher-Order QAM Constellations: Technical Challenges, Recent Advances, and Future Trends
2021
IEEE Open Journal of the Communications Society
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for different constellation orders are presented. ...
The increasing demand for high data-rates has further encouraged research towards more compact 2D constellations which leads to hexagonal lattice structure based hexagonal QAM (HQAM) constellations. ...
probability and SER of M -ary PSK and M -ary QAM constellations. ...
doi:10.1109/ojcoms.2021.3067384
fatcat:xx3tpsasevbqjg3ej2vktivqdi
Unified Bit-Based Probabilistic Data Association Aided MIMO Detection for High-Order QAM Constellations
2011
IEEE Transactions on Vehicular Technology
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A unified bit-based probabilistic data association (B-PDA) detection approach is proposed for multiple-inputmultiple-output (MIMO) systems employing high-order rectangular quadrature amplitude modulation ...
Index Terms-High-order quadrature amplitude modulation (QAM), low complexity, probabilistic data association (PDA), unified matrix representation (UMR), vector detection. ...
In this situation, the SER is a useful metric that is widely adopted in the literature of the high-order M -ary detection in MIMO systems, as seen in [8] , [10] , and [15] . ...
doi:10.1109/tvt.2011.2114376
fatcat:4pqkw5lqxfey5iis477fazvwd4
Multilevel coding in M-ary DPSK/differential QAM high-speed optical transmission with direct detection
2006
Journal of Lightwave Technology
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codes in a multilevel coding (MLC) is proposed for optical transmission systems with direct detection. ...
A bandwidth-and power-efficient modulation scheme using M -ary differential phase-shift keying (DPSK)/ differential quadrature amplitude modulation (DQAM) and low-density parity-check (LDPC) codes as component ...
The superior performance of M -ary QAM can only be realized if the system operates in the regime of weak fiber nonlinearities. ...
doi:10.1109/jlt.2005.860148
fatcat:7mvl3ooi4vdpzgesuk6tzoz74i
An SVM-Based Detection for Coherent Optical APSK Systems With Nonlinear Phase Noise
2014
IEEE Photonics Journal
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in the nonlinear system tolerance, particularly in the high nonlinear regime. ...
A support vector machine (SVM)-based data detection is proposed for coherent optical fiber amplitude phase-shift keying (APSK) communication systems where the nonlinear phase noise is the main system impairment ...
[6] , maximum likelihood sequence estimation (MLSE) [7] and M-ary support vector machine (SVM) [8] . ...
doi:10.1109/jphot.2014.2357424
fatcat:qzatekaoh5fojcyhlvvgkpigvu
Nonlinearity and Phase Noise Mitigation Using Feed-forward Carrier Phase Estimation and Digital Backward Propagation in Coherent QAM Transmission
2014
Physics Procedia
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fiber impairments for polarization multiplexed (PM) 4 and 16-ary quadrature amplitude modulation (QAM) coherent systems. ...
However, in the presence of phase noise, non-decision directed VV-CPE (for 4-QAM) and QPSK partitioning (for 16-QAM) methods outperform DD-CPE with greater phase noise tolerance and reduced complexity. ...
modulation (QAM) schemes with m equal to 4 and 16 have attracted high attention. ...
doi:10.1016/j.phpro.2014.08.062
fatcat:wqj5lc6si5ch5m7rzkxps6yyyy
Direct Detection Under Tukey Signalling
[article]
2021
arXiv
pre-print
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A new direct-detection-compatible signalling scheme is proposed for fiber-optic communication over short distances. ...
ACKNOWLEDGMENT The authors would like to thank Qun Zhang for helpful discussions regarding the split-step Fourier simulation method and an anonymous reviewer whose comments significantly improved the paper ...
If high detection complexity rules high-order constellations out then one might use low-order constellations and operate at high launch powers by precompensating not only the chromatic dispersion but also ...
arXiv:2105.12802v4
fatcat:nhan3rff6baergikyyu2vp43qu
A Novel Nonlinear Equalizer for Probabilistic Shaping 64-QAM Based on Constellation Segmentation and Support Vector Machine
2022
Electronics
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In order to solve the problem, we propose a novel nonlinear equalizer (NLE) for PS-64QAM based on constellation segmentation (CS) and SVM, called CS M-ary SVM NLE. ...
The results show that the complexity of the proposed scheme is lower than that of the M-ary SVM scheme under the entire measured launched optical power range from −5 dBm to +5 dBm. ...
In order to solve the problem, we proposed the CS M-ary SVM NLE scheme. The process of the CS M-ary SVM NLE scheme is shown in Figure 5 . ...
doi:10.3390/electronics11050671
fatcat:tlmrdhosanac7glcjtwqjc74uq
Generalized differential encoding: a nonlinear signal processing perspective
1998
IEEE Transactions on Signal Processing
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In addition to the classical M-ary PSK, the generalized differential encoding idea is also applied to nonconstant modulus constellations, such as M-ary QAM and AM-PM. ...
This paper generalizes the idea of differential encoding by using a nonlinear transformation called multilag high-order instantaneous moment (ml-HIM). ...
A. 16-QAM Modulations Consider a 16-QAM modulation scheme. The input is assumed to be i.i.d., with and drawn from the discrete alphabet set . ...
doi:10.1109/78.726810
fatcat:ncm64yehrbdy5g2qh2hx4tmdle
Semidefinite Programming Relaxation Based Virtually Antipodal Detection for Gray Coded 16-QAM MIMO Signalling
2011
2011 IEEE Global Telecommunications Conference - GLOBECOM 2011
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An efficient semidefinite programming relaxation (SDPR) based virtually antipodal (VA) detection approach is proposed for Gray coded 16-QAM signalling over multiple-input-multiple-output (MIMO) channels ...
Index Terms-Binary constrained quadratic programming, Gray mapping, primal-dual interior-point algorithm, QAM, semidefinite programming relaxation (SDPR), virtually-antipodal detection. 978-1-4244-9268 ...
The SDPR approach was also further developed for high-order modulation schemes, such as for M -ary phase shift keying (M -PSK) scenario in [7] , and for highorder quadrature amplitude modulation (QAM) ...
doi:10.1109/glocom.2011.6134531
dblp:conf/globecom/YangH11a
fatcat:gjk3ggxn2vaozebwyak5xh3txq
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