Optical phase conjugation with dual frame OFDM for dispersion and nonlinearity mitigation over multimode fiber

Choudhary, Usha; Janyani, Vijay; Khan, M. Arif

doi:10.1007/s11082-021-02736-y

Cited by 5 publications

(2 citation statements)

References 27 publications

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“…Digital signal processing (DSP) techniques and coherent detection have become popular for compensating fibre impairments and promise to be a potential solution for designing high data rate transmissions. Subsequently, several techniques presented for non-linear impairments compensation include digital backpropagation (DBP) [10,11], Volterra series nonlinear equalizer (VSNLE) [12], phase-conjugate twin waves (PCTW) [13], machine learning-based techniques [14], nonlinear Fourier transform (NFT) [15], among others. The DBP technique has been demonstrated to be more promising and effective for jointly mitigating fibre dispersion and non-linear distortions, becoming a benchmark for evaluating other compensation techniques [16].…”

Section: Introductionmentioning

confidence: 99%

Digital backpropagation based on binary logarithmic step size distribution for fibre non‐linearity compensation

Dede,

Akowuah,

Haxha

2023

The Journal of Engineering

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Capacity crunch has become critical in recent years as commercial communication systems approach their theoretical data rate limits. This work presents a low‐complexity digital backpropagation (DBP) implementation approach based on step size distribution that uses a binary logarithmic step size method to achieve high data rate optical transmission. The proposed scheme shows performance improvements (∆Q) of 2.36, 1.19, and 0.71 dB over linear compensation, constant step size (CSS) DBP, and logarithmic step size DBP techniques in a 2400 km 112 Gbit/s DP‐16 quadrature amplitude modulation (QAM) system, respectively. At 13 dBm, a high performance (Q) of 10.9 dB (BER = 2.25 × 10−4) is achieved, above the 3.80 × 10−3 hard‐decision forward error correction (HD‐FEC) limit, using the proposed scheme. Also, the allowable transmission distance is extended by 960 km at the HD‐FEC limit over the linear compensation technique. The optimization achieves a 38% saving in the number of DBP calculation steps compared to the CSS DBP, which considerably reduces the computational cost since a few steps are required for effective non‐linearity compensation.

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Section: Introductionmentioning

confidence: 99%

Digital backpropagation based on binary logarithmic step size distribution for fibre non‐linearity compensation

Dede,

Akowuah,

Haxha

2023

The Journal of Engineering

View full text Add to dashboard Cite

show abstract

“…Digital signal processing (DSP) techniques and coherent detection have become popular for compensating fiber impairments and promise to be a potential solution for designing high data rate transmissions. Subsequently, several techniques presented for nonlinear impairments compensation include digital backpropagation (DBP) (10,11), Volterra series nonlinear equalizer (VSNLE) (12), phase-conjugate twin waves (PCTW) (13), machine learning-based techniques (14), nonlinear Fourier transform (NFT) (De Koster & Wahls, 2020), among others. The DBP technique has been demonstrated to be more promising and effective for jointly mitigating fiber dispersion and nonlinear distortions, becoming a benchmark for evaluating other compensation techniques (16).…”

Section: Introductionmentioning

confidence: 99%

Digital Backpropagation Based on Binary Logarithmic Step Size Distribution for Fiber Nonlinearity Compensation

Dede

Akowuah

Haxha

2023

Preprint

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Capacity crunch has become critical in recent years as commercial communication systems approach their theoretical data rate limits. This work presents a low-complexity digital backpropagation (DBP) implementation approach based on step size distribution that uses a binary logarithmic step size method to achieve high data rate optical transmission. The proposed scheme shows performance improvements (∆Q) of 2.36 dB, 1.19 dB, and 0.71 dB over linear compensation, constant step size DBP, and logarithmic step size DBP techniques in a 2400 km 112 Gbit/s DP-16QAM system, respectively. At 13 dBm, a high performance (Q) of 10.9 dB (BER = 2.25×10-4) is achieved, above the 3.80×10-3 hard-decision forward error correction (HD-FEC) limit, using the proposed scheme. Also, the allowable transmission distance is extended by 960 km at the HD-FEC limit over the linear compensation technique. The optimization achieves a 38% savings in the number of DBP calculation steps compared to the constant step size DBP, which considerably reduces the computational cost since a few steps are required for effective nonlinearity compensation.

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Selection of optical filters for optimization of different parameters in a coherent optical 16-QAM CO-OFDM modulation system

Kaushik,

Saini

2023

J Opt

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Optical phase conjugation with dual frame OFDM for dispersion and nonlinearity mitigation over multimode fiber

Cited by 5 publications

References 27 publications

Digital backpropagation based on binary logarithmic step size distribution for fibre non‐linearity compensation

Digital backpropagation based on binary logarithmic step size distribution for fibre non‐linearity compensation

Digital Backpropagation Based on Binary Logarithmic Step Size Distribution for Fiber Nonlinearity Compensation

Selection of optical filters for optimization of different parameters in a coherent optical 16-QAM CO-OFDM modulation system

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