Subcarrier Intensity Modulated Optical Wireless Communications in Atmospheric Turbulence With Pointing Errors

Song, Xuegui; Yang, Fan; Cheng, Julian

doi:10.1364/jocn.5.000349

Cited by 57 publications

(25 citation statements)

References 23 publications

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“…1) Upper-bound of SEP over (0, τ ): We integrate the first part of SEP in (15), which is denoted by P τ (ρ). Notice that when ρ → ∞, τ → 0, and in this case, f H (h) is monotonically increasing over (0, τ ).…”

Section: Conclusion and Discussionmentioning

confidence: 99%

Space Codes for MIMO Optical Wireless Communications: Error Performance Criterion and Code Construction

Zhang

et al. 2017

IEEE Trans. Wireless Commun.

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In this paper, we consider a multiple-input-multiple-output optical wireless communication (MIMO-OWC) system in the presence of log-normal fading. In this scenario, a general criterion for the design of full-diversity space code (FDSC) with the maximum likelihood (ML) detector is developed. This criterion reveals that in a high signal-to-noise ratio (SNR) regime, MIMO-OWC offers both large-scale diversity gain, governing the exponential decaying of the error curve, and small-scale diversity gain, producing traditional power-law decaying. Particularly for a two by two MIMO-OWC system with unipolar pulse amplitude modulation (PAM), a closed-form solution to the design problem of a linear is the optimal linear FDSC optimizing both the diversity gains, but also uncovers a significant difference between MIMO radio frequency (RF) communications and MIMO-OWC that space dimension alone is sufficient for a full large-scale diversity achievement. Computer simulations demonstrate that FDSC substantially outperforms uncoded spatial multiplexing with the same total optical power and spectral efficiency, and the latter provides only the small-scale diversity gain. Index TermsMultiple-input-multiple-output (MIMO), optical wireless communications (OWC), log-normal fading channels, linear space code, full diversity, repetition coding and maximum likelihood detector.

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Section: Conclusion and Discussionmentioning

confidence: 99%

Space Codes for MIMO Optical Wireless Communications: Error Performance Criterion and Code Construction

Zhang

et al. 2017

IEEE Trans. Wireless Commun.

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“…Gamma-Gamma turbulence channels can be combined with pointing errors in subcarrier intensity-modulated OWC system for examining BER performance [18]. The study used M-ary phase-shift keying, non-coherent frequency-shift keying, and differential phase-shift keying for observing error performance and found that pointing errors can adversely affect the error rate and outage probability performance of the system.…”

Section: Background Study (Related Work)mentioning

confidence: 99%

Challenges to Inter-Satellite Communication System: A Review

Shatnawi¹,

Warip²

2016

IJCA

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“…After travelling turbulent media signal suffers degraded power and distorted phase .Moreover, AWGN is added with the signal. Considering the effect of atmospheric turbulence and pointing error the output photocurrent at receiver is given by [6,15]: (2) where R is photodetectors responsivity, h is the overall channel state, and n(t) is the Gaussian distributed noise at the output of receiver with zero mean and variance , which includes shot noise and thermal noise.…”

Section: System Modelmentioning

confidence: 99%

“…Effect of large and small scale eddies are defined as the product of two independent variable, , where, is defined as small scale eddies and is defined as large scale eddies. If overall received irradiance is , then by gamma-gamma model probability density function is defined as [9,6,15,16]:…”

Section: A Atmospheric Turbulence Modelmentioning

confidence: 99%

Free-space optical communication with BPSK subcarrier intensity modulation in presence of atmospheric turbulence and pointing error

Yeaseen¹,

Azam²,

Saha³

et al. 2015

2015 18th International Conference on Computer and Information Technology (ICCIT)

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An analysis has been carried out to evaluate the Signal to Noise Ratio (SNR) and average bit error rate (BER) in presence of pointing error and atmospheric turbulence. The probability density function (pdf) of atmospheric turbulence and pointing error has been combined to find out the joint effect on the BER performance on Free-Space Optical (FSO) system. The average BER is evaluated over the combined pdf of atmospheric turbulence and pointing error.The BER performance results are numerically evaluated for several values of pointing error and different link length using Binary Phase Shift Keying (BPSK) subcarrier intensity modulation. For strong turbulence power penalty is around 20dB, while for strong jitter power penalty is around 30dB at a BER of 10 -9 and bit rate of 1 Gbps.

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Subcarrier Intensity Modulated Optical Wireless Communications in Atmospheric Turbulence With Pointing Errors

Cited by 57 publications

References 23 publications

Space Codes for MIMO Optical Wireless Communications: Error Performance Criterion and Code Construction

Space Codes for MIMO Optical Wireless Communications: Error Performance Criterion and Code Construction

Challenges to Inter-Satellite Communication System: A Review

Free-space optical communication with BPSK subcarrier intensity modulation in presence of atmospheric turbulence and pointing error

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