Performance analysis of SIM based FSO using various modulation techniques with APD receiver over turbulent channel

Mishra, Arpita; Pati, Preeti Samhita; Giri, Rajat Kumar

doi:10.1109/wispnet.2017.8300259

Cited by 4 publications

(4 citation statements)

References 8 publications

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“…In atmosphere, path loss can be divided into geometric loss and the effect of the medium on the light in the link, which can be expressed as follows [25]:…”

Section: Channel Modelsmentioning

confidence: 99%

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A Reliable Singular Value Decomposition and Geometric Mean Decomposition Based Precoding Scheme for MU-MIMO-VLC System

2022

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In this paper, in order to improve the reliability of Multi-User Multiple-Input Multiple-Output Visible Light Communication (MU-MIMO-VLC) system, we propose a precoding scheme that based on Singular Value Decomposition (SVD) and Geometric Mean Decomposition (GMD) assisted Orthogonal Transformation (OT). In this design, we use SVD to conduct the decomposition of the user's complementary channel matrix. Then, the equivalent channel matrix is obtained by multiplying the user's channel matrix and the decomposed component. After that, the GMD is carried out to decompose the equivalent channel matrix. Finally, the precoding matrix of the proposed scheme is obtained. We then derive the theoretical Symbol Error Rate (SER) of the proposed scheme. The simulation results are provided to validate the effectiveness of the proposed scheme, and to demonstrate that the reliability of the proposed design is superior to benchmark schemes.

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“…In atmosphere, path loss can be divided into geometric loss and the effect of the medium on the light in the link, which can be expressed as follows [25]:…”

Section: Channel Modelsmentioning

confidence: 99%

“…Turbulence can be divided into strong turbulence and weak turbulence. As to the turbulence loss, the log-normal distribution can be used for the weak turbulence, and the double-gamma distribution is used for modeling the strong turbulence [25]. Then the mathematical expression can be presented as [27]:…”

Section: Channel Modelsmentioning

confidence: 99%

A Reliable Singular Value Decomposition and Geometric Mean Decomposition Based Precoding Scheme for MU-MIMO-VLC System

2022

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“…For the underwater channel, we use the Monte Carlo (MC) method to approximate h p [19]. For the atmospheric channel, the path loss coefficient h p depends on the geometric loss led by the receiver aperture area, transmitter divergence angle and the atmospheric turbulence caused by the absorption and scattering [20]. The h p can be received as follows:…”

Section: Maritime Mimo-vlc Channel Modelsmentioning

confidence: 99%

“…The channel response h t is related to turbulence. The double gamma model is used to describe the moderate to strong turbulence, while the turbulence intensity is weak, the log-normal model is applied [13,20]. The log-irradiance variance σ 2 I is used to reshape the turbulence intensity, which can be [20,21]:…”

Section: Maritime Mimo-vlc Channel Modelsmentioning

confidence: 99%

A Symmetric Matrix-Aided MIMO to Improve Reliability for Maritime Visible Light Communications

et al. 2022

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Turbulence in natural environments affects the reliability of communication. In this paper, we propose a symmetric matrix-assisted multiple-input multiple-output (MIMO) maritime visible light communication (VLC) system to confront turbulence and improve reliability. In our design, by exploiting the repeatability of elements in the symmetric matrix, the matrix can expand the Euclidean distance between signals and effectively restrains the interference between signals, thus improving the reliability of maritime VLC systems. In addition, we derive the theoretical symbol error rate (SER) of the proposed scheme. Then, simulation results are provided to validate the theoretical SER. In addition, the SER performances of the proposed system are compared with the three benchmark schemes of repetitive coding (RC), spatial modulation (SM), and spatial multiplexing (SMP), and the transmission performances in VLC systems with different link distances, water qualities, and wind speeds are also investigated. The proposed symmetric matrix-assisted MIMO maritime VLC system can combat interferences effectively and enhance reliability performance.

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Analysis of Novel 15Gbps WDM–FSO System Employing Hybrid Amplifier Under Various Weather Conditions

Kaur

Singh

Sharma

et al. 2021

Advances in Intelligent Systems and Computing

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Performance analysis of SIM based FSO using various modulation techniques with APD receiver over turbulent channel

Cited by 4 publications

References 8 publications

A Reliable Singular Value Decomposition and Geometric Mean Decomposition Based Precoding Scheme for MU-MIMO-VLC System

A Reliable Singular Value Decomposition and Geometric Mean Decomposition Based Precoding Scheme for MU-MIMO-VLC System

A Symmetric Matrix-Aided MIMO to Improve Reliability for Maritime Visible Light Communications

Analysis of Novel 15Gbps WDM–FSO System Employing Hybrid Amplifier Under Various Weather Conditions

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