Performance analysis of QPSK FSO system with various operating wavelengths and adaptive optics over fog channel

Gatri, A.; Ghassemlooy, Zabih; Valenzuela, A.A.

doi:10.1109/cobcom.2016.7593511

Cited by 3 publications

(1 citation statement)

References 15 publications

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“…Authors in 35 present a performance study of an FSO link using QPSK modulation considering weather conditions, pointing errors and phase noise. While reference 36 presents a comparative study of an FSO system using the QPSK modulation technique over an atmospheric channel attenuated by fog operating at three carrier wavelengths. In the final analysis, authors have attracted that QPSK performs better under severe atmospheric conditions.…”

Section: Introductionmentioning

confidence: 99%

Image transmission performance analysis through free space optical communication link using coherent QPSK modulation under various environmental conditions

Djir

Meskine

Tayebi

2023

Trans Emerging Tel Tech

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Free space optics (FSO) technology has been used recently in many applications due to its various advantages such as high bandwidth, easy deployment, high security, free installation license and immunity to electromagnetic interference. However, this type of communication is vulnerable to meteorological conditions such as rain, haze and fog which significantly degrade the system's efficiency. To enhance the effectiveness of the FSO systems, Quadrature Phase Shift Keying (QPSK) modulation based on coherent detection constitutes a promising technique for achieving high spectral efficiency and long‐distance FSO links with the characteristics of low‐cost implementation and simple design. This work aims to investigate the performance of FSO communication links on image transmission under the presence of atmospheric attenuations. A comparative study has been made using QPSK modulation scheme and on–off‐keying (OOK) modulation scheme to estimate the maximum range that was used to recover an RGB transmitted image over an FSO link under different meteorological weathers. The obtained results clearly show that the quality of the received image has degraded significantly during transmission through free space yielding to limit the propagation range. Moreover, the proposed FSO communication system performs well when using QPSK modulation rather than OOK modulation in different environmental conditions. Thus, to improve the quality of the received image under adverse fog weather condition, high power and small beam divergence angle have been suggested to increase system's performance. The proposed solution increases the communication range of the FSO link by 230 m and 100 m for moderate and heavy fog, respectively.

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Section: Introductionmentioning

confidence: 99%

Image transmission performance analysis through free space optical communication link using coherent QPSK modulation under various environmental conditions

Djir

Meskine

Tayebi

2023

Trans Emerging Tel Tech

View full text Add to dashboard Cite

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Performance Evaluation of Higher Order Modulation in FSOC System using Homodyne Detector

Sinha

Kumar

2023

2023 International Conference on Recent Advances in Electrical, Electronics &Amp; Digital Healthcare Technologies (REEDCON)

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DP-QPSK Technique for Ultra-high Bit-rate DWDM FSO System

Pradhan

Patnaik

Panigrahy

2019

Journal of Optical Communications

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This paper proposes an ultra-high capacity free space optical communication (FSO) system, employing optical dual polarization quadrature phase shift keying (DP-QPSK) modulation format. It is a 16-channel dense wavelength division multiplexing (DWDM) system with 120 Gbps/channel bit rate. The FSO system is analyzed with three optical advanced modulation schemes; such as 4-quadrature amplitude modulation (4-QAM), quadrature phase shift keying (QPSK) and DP-QPSK. The main focus of the projected system is to improve the FSO setup performance in terms of eye diagram, bit error rate (BER), high received power and Q-factor. The center channel wavelength used for the proposed system is 1550 nm. In the present wireless communication world, the proposed system will be highly helpful as an ultrahigh capacity wireless system.

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Performance analysis of QPSK FSO system with various operating wavelengths and adaptive optics over fog channel

Cited by 3 publications

References 15 publications

Image transmission performance analysis through free space optical communication link using coherent QPSK modulation under various environmental conditions

Image transmission performance analysis through free space optical communication link using coherent QPSK modulation under various environmental conditions

Performance Evaluation of Higher Order Modulation in FSOC System using Homodyne Detector

DP-QPSK Technique for Ultra-high Bit-rate DWDM FSO System

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