A high‐speed long‐haul wavelength division multiplexing–based inter‐satellite optical wireless communication link using spectral‐efficient 2‐D orthogonal modulation scheme

Singh, Mehtab; Malhotra, Jyoteesh

doi:10.1002/dac.4293

Cited by 39 publications

(7 citation statements)

References 22 publications

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“…It is therefore becoming necessary to remove such points from the model to bring significant change in model statistics and make a model much more efficient than the later one. In the process of linear regression analysis, outliers or the extreme values are likely to create issues in estimation 40–42 . Some of these high leverage values often tend to create aberrations in the residuals along with bias in the estimator.…”

Section: Improving Proposed Model Performancementioning

confidence: 99%

“…In the process of linear regression analysis, outliers or the extreme values are likely to create issues in estimation. [40][41][42] Some of these high leverage values often tend to create aberrations in the residuals along with bias in the estimator. So, it is very much necessary to recognize such influential points in a given data.…”

Section: Scale Location Plotmentioning

confidence: 99%

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Machine learning‐based predictive modeling for failure management of optical spatial mode division multiplexing system

Kaur

Parasher²,

Srivastava

et al. 2022

Int J Communication

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The bit error rate (BER) in optical communication systems is often get degraded due to various factors like launch power, dispersion, modal noise, and so on. Finding the most optimal launch power for a signal to provide acceptable BER is usually difficult on an installed link. Therefore, in this paper, an attempt has been made to use machine learning-based linear regression technique for predicting the optimal signal quality for spatial division multiplexed (SDM)-based fiber optical transmission system for a fixed distance. This technique helps in predicting the optimal value of continuous launch power. Therefore, to demonstrate the given concept in this research work, the generic setup of an SDM optical long-haul system of 20 km in length has been designed and simulated in Optisystem-14.0. The light sources in our experiments are two spatial optical transmitters with an emission wavelength of around 1550 nm. Abiding to the first step for the regression analysis, that is the data preparation, normality and correlation checks were performed. After this, a linear regression model is developed which was validated through a summary report, coefficients and diagnostic plots. Furthermore, the accuracy of the model is improved by employing Cook's distance. These tests help in dealing with the influence points that hinders the prediction ability of the proposed model. The results show that the R-squared value is 0.9366, and value of adjusted R 2 comes out to be around 0.9344; we therefore came to infer that the model explains nearly 94% variations in the dependent variables. K E Y W O R D Sbit error rate (BER), launch power (LP), linear regression, optical transmission systems, spatial division multiplex (SDM)

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Section: Improving Proposed Model Performancementioning

confidence: 99%

Section: Scale Location Plotmentioning

confidence: 99%

Machine learning‐based predictive modeling for failure management of optical spatial mode division multiplexing system

Kaur

Parasher²,

Srivastava

et al. 2022

Int J Communication

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“…Wavelength division multiplexing of 16 channels at a data rate of 20 Gbps is employed using polarization diversity and MDRZ modulation and analysis in terms of BER and Q factor is observed, polarization diversity is introduced to reduce interference and observe using eye diagram [4]. Wavelength division multiplexing of 16 channels at a data rate of 100 Gbps using modulation scheme DQPSK is introduced and a link distance of 25000 km is successfully achieved at an acceptable BER [7]. Performance analysis of Is-OWC system at a distance of 5000km between 2 satellites in low earth orbit for 16 transceiver system is observed [8].…”

Section: Literature Reviewmentioning

confidence: 99%

Reach Enhanced Is-OWC System using Double Sideband Suppressed (DSS) DP-QPSK

Garg¹,

Kaur²,

Kumar³

2022

IJEM

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Insophisticated situations coming from developing multimedia applications and the exponential increase in the number of smart sensors and devices, future wireless networks will ensure high reliability, low latency, scalability, as well as better quality-of-service.Optical wireless communication (OWC) becomes more important because it can take advantage of the light medium's unique selling points over RF, such as immunity to electromagnetic interference (EMI), ultra-high capacity, the ability to communicate wirelessly through water, and the ability to provide additional security. Dual polarization (DP) enabled multilevel modulations in inter satellite optical wireless communication (Is-OWC) are potential and capacity building techniques to cope up with bandwidth explosive demands. Therefore, inthis work, a reach enhanced single channel Is-OWC is proposed using Double Sideband Suppressed (DSS) dual polarized (DP) Quadrature phase shift keying (QPSK) modulation. Spectral efficiency of carrier is improved through DSS technique using Mach-Zehndar modulator (MZM) and millimeter wave (mm-wave). Further, pulse width reduction, nonlinear effects suppression, carrier phase estimation (CPE) and frequency offset estimation (FPE) is performed by Digital signal processor (DSP) in coherent receiver of PDM-QPSK. Performance comparison of DP-QPSK and DSS-DP-QPSK is performed at different link lengths in terms of log BER and error vector magnitude (EVM%). Results revealed that proposed system i.e., DSS-DP-QPSK at 160 Gbps data rate covers 44,000 km Is-OWC distance with acceptable log BER as compared to 40,000 km in DP-QPSK due to improved spectral efficiency of carrier spectrum of proposed system.

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“…At the receiver end, the optical signals are detected and converted back into electrical signals by a light sensitive device known as a light detector or a photodetector (PD) like avalanche photodetector (APD) [16]- [23] The optical transmitter unit is a transducer. It is composed of optical source and the driver circuit [24]- [27]. It converts the electrical input signals into corresponding light signals and launches them into the optical fiber.…”

Section: Introductionmentioning

confidence: 99%

AlGaInP optical source integrated with fiber links and silicon avalanche photo detectors in fiber optic systems

Eid

Urooj

Alwadai

et al. 2021

IJEECS

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This study has clarified aluminium gallium indium phosphide (AlGaInP) optical source integrated with fiber links and silicon avalanche photodetectors in fiber optic systems. The output spectral power, rise time, signal frequency and resonance frequency for AlGaInP laser diode. The laser diode rise time, output spectral power and resonance/signal frequencies versus injection current and ambient temperatures are sketched. The silica doped germanium fiber link pulse broadening and the signal fiber bandwidth are investigated against temperature variations. The signal per noise ratio is related to Q value and bit error rate (BER) at the receiving point (Si avalanche photodetector (APD)) are sketched with temperature.

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A high‐speed long‐haul wavelength division multiplexing–based inter‐satellite optical wireless communication link using spectral‐efficient 2‐D orthogonal modulation scheme

Cited by 39 publications

References 22 publications

Machine learning‐based predictive modeling for failure management of optical spatial mode division multiplexing system

Machine learning‐based predictive modeling for failure management of optical spatial mode division multiplexing system

Reach Enhanced Is-OWC System using Double Sideband Suppressed (DSS) DP-QPSK

AlGaInP optical source integrated with fiber links and silicon avalanche photo detectors in fiber optic systems

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