Flexible and fast multi‐level modulation format identification using optical orthogonal frequency division multiplexing redundancy subcarriers
Sign Up to like & getrecommendations! Published in 2021 at "Microwave and Optical Technology Letters"
DOI: 10.1002/mop.32906
Abstract: Compared with the orthogonal frequency division multiplexing (OFDM) communication system, the subcarrier‐index modulation OFDM communication system can alleviate the problem of peak‐to‐average power ratio and the frequency offset sensitivity. Therefore, the problem of inter carrier… read more here.
Keywords: modulation format; frequency division; modulation; frequency ... See more keywords
All-optical modulation format conversion from PSK to ASK based on phase-sensitive amplification
Sign Up to like & getrecommendations! Published in 2019 at "Optoelectronics Letters"
DOI: 10.1007/s11801-019-8097-2
Abstract: With the development of the optics communication system and optical signal modulation technology, the amplitude-shift keying (ASK) and phase-shift keying (PSK) are both used in different optical communication sub-networks. In this paper, a novel all-optical… read more here.
Keywords: sensitive amplification; phase sensitive; modulation; modulation format ... See more keywords
Modulation format identification based on phase statistics in Stokes space
Sign Up to like & getrecommendations! Published in 2021 at "Optics Communications"
DOI: 10.1016/j.optcom.2020.126481
Abstract: Abstract In this work, a high-performance, low-complexity modulation format identification (MFI) technique is proposed and experimentally demonstrated for coherent optical receivers using features extracted from phase statistics in Stokes space. Numerical simulations as well as… read more here.
Keywords: format identification; phase statistics; modulation; identification ... See more keywords
Joint Modulation Format Identification and Optical Signal-to-Noise Ratio Monitoring Based on Ternary Neural Networks
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Access"
DOI: 10.1109/access.2022.3230834
Abstract: Modulation format identification (MFI) and optical signal-to-noise ratio (OSNR) monitoring are essential for elastic optical networks. A method for joint modulation format identification and OSNR monitoring based on ternary neural networks was proposed. Further, a… read more here.
Keywords: modulation format; modulation; ternary neural; format identification ... See more keywords
All-Optical Modulation Format Conversion Between OOK, QPSK, and 8QAM
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Lightwave Technology"
DOI: 10.1109/jlt.2019.2918815
Abstract: Modulation format conversion is useful when the signal is transmitted through networks employing different modulation formats. It is also expected to increase the spectral efficiency and reduce power consumption in network nodes by applying all-optical… read more here.
Keywords: format conversion; conversion; modulation; modulation format ... See more keywords
Geometrically-Shaped Multi-Dimensional Modulation Formats in Coherent Optical Transmission Systems
Sign Up to like & getrecommendations! Published in 2022 at "Journal of Lightwave Technology"
DOI: 10.1109/jlt.2022.3204101
Abstract: Shaping modulation formats in multi-dimensional (MD) space is an effective approach to harvest spectral efficiency gains in both the additive white Gaussian noise (AWGN) channel and the optical fiber channel. In the first part of… read more here.
Keywords: modulation formats; modulation; geometrically shaped; multi dimensional ... See more keywords
Modulation Format Recognition for Optical Signals Using Connected Component Analysis
Sign Up to like & getrecommendations! Published in 2017 at "IEEE Photonics Technology Letters"
DOI: 10.1109/lpt.2016.2623645
Abstract: We investigate and characterize the blind modulation format recognition method based on connected component analysis for general-purpose optical receivers. A converted binary graph is generated by projecting a part of the received data in Stokes… read more here.
Keywords: recognition; modulation format; format recognition; connected component ... See more keywords
Modulation Format Shifting Scheme for Optical Camera Communication
Sign Up to like & getrecommendations! Published in 2020 at "IEEE Photonics Technology Letters"
DOI: 10.1109/lpt.2020.3012834
Abstract: We propose and experimentally demonstrate a simple and elegant modulation format shifting (MFS) scheme by continuously changing the modulation formats between OOK and Manchester signal for optical camera communication (OCC) using a commercially available mobile… read more here.
Keywords: mfs scheme; modulation; optical camera; format shifting ... See more keywords
Efficient utilization of Hough transform and orthogonal-triangular decomposition for optical wireless modulation format recognition.
Sign Up to like & getrecommendations! Published in 2022 at "Applied optics"
DOI: 10.1364/ao.439248
Abstract: Two schemes for optical wireless modulation format recognition (MFR), based on the orthogonal-triangular decomposition (OTD) and Hough transform (HT) of the constellation diagrams, are proposed in this paper. Constellation diagrams are obtained at optical signal-to-noise… read more here.
Keywords: optical wireless; modulation format; decomposition; wireless modulation ... See more keywords
Multifunctional all-optical signal processing scheme for wavelength-division-multiplexing multicast, wavelength conversion, format conversion, and all-optical encryption using hybrid modulation format exclusive-OR gates based on four-wave mixing in highly nonlinear fiber.
Sign Up to like & getrecommendations! Published in 2018 at "Applied optics"
DOI: 10.1364/ao.57.001562
Abstract: A multifunctional optical signal processing scheme for 10-Gbaud quadrature phase shift keying (QPSK) and binary phase shift keying (BPSK) signals based on four-wave mixing (FWM) in highly nonlinear fiber (HNLF) is proposed. Wavelength-division-multiplexing (WDM) multicast,… read more here.
Keywords: format; wavelength conversion; optical signal; conversion ... See more keywords
Stokes space modulation format classification based on non-iterative clustering algorithm for coherent optical receivers.
Sign Up to like & getrecommendations! Published in 2017 at "Optics express"
DOI: 10.1364/oe.25.002038
Abstract: A Stokes-space modulation format classification (MFC) technique is proposed for coherent optical receivers by using a non-iterative clustering algorithm. In the clustering algorithm, two simple parameters are calculated to help find the density peaks of… read more here.
Keywords: classification; clustering algorithm; modulation format; stokes space ... See more keywords