Effect of dust storms on FSO communications links

Esmail, Maged Abdullah; Fathallah, Habib; Alouini, Mohamed‐Slim

doi:10.1109/ceit.2016.7929046

Cited by 24 publications

(14 citation statements)

References 11 publications

(16 reference statements)

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“…The area of the mining workface is contaminated with the heavy concentration of coal particles, which generates the absorption and scattering effect. Similarly, the existence of floating coal dust reduces the visibility for the optical signal that shortens the range of the optical link [35]. The presence of water vapors in the coal particles absorbs the optical power of the transmitted signal and particulate matter of coal dust scatters the optical beams.…”

Section: Influence Of Coal Dust Particles On Vlcmentioning

confidence: 99%

Characteristic Study of Visible Light Communication and Influence of Coal Dust Particles in Underground Coal Mines

et al. 2021

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The critical environment of the underground mines is a risky zone for mining applications and it is very hazardous to engage the miners without a sophisticated communication system. The existing wired networks are susceptible to damage and the wireless radio systems experience severe fading that restricts the complete access to the entire assembly of a mine. Wireless optical communication is a better approach that can be incorporated in the erratic atmosphere of underground mines to overcome such issues, as lights are already used to illuminate the mine galleries. This study is focused on investigating the characteristics of visible light communication (VLC) in an underground coal mine. The entire scope of VLC is elaborated along with the influence of coal dust particles and the scattering model. The impact of coal dust clouds on visibility and attenuation is analyzed for visible light transmission. The shadowing effect generated by the pillars and mining machinery is estimated by employing the bimodal Gaussian distribution (BGD) approach in coal mines. The characteristic model of VLC for underground coal mines is presented by classifying the area of the mine into mine gallery and sub-galleries. The transmission links of VLC are categorized as the line of sight (LOS) link for direct propagation and the non-LOS (NLOS) link for reflected propagation. The scenarios of LOS and NLOS propagation are considered for each evaluating parameter. Furthermore, the performance of the proposed framework is examined by computing the received signal power, path loss, delay spread (DS), and signal to noise ratio (SNR).

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Section: Influence Of Coal Dust Particles On Vlcmentioning

confidence: 99%

Characteristic Study of Visible Light Communication and Influence of Coal Dust Particles in Underground Coal Mines

et al. 2021

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“…Table 3 compares the transmission performance of the proposed system with recent works and demonstrates that the proposed system achieves higher information capacity. The higher range in recent works can be attributed to the fact that the authors have considered higher transmission power, that is, 22 dBm (Ref [7,23]) and 50 dBm (Ref. [33]), as compared to 14 dBm in this work.…”

Section: Resultsmentioning

confidence: 79%

“…The second approach used in the literature for the calculation of attenuation in FSO for real-world applications rests on experimental remark [22]. This technique is based on experiential models established by means of visibility range statistics to identify the propagation path characteristics [23]. Link visibility information can be acquired from meteorological stations situated near the setup area.…”

Section: Fso Evaluation In Dust Channelmentioning

confidence: 99%

Performance Investigation of a High Data Rate Mode Division Multiplexed-Free Space Optics Link Under Harsh Weather Conditions

et al. 2021

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The requirement of high data rate information transmission is rising exponentially for supporting different services including social networking, web streaming, and biomedical sensor data transmission. Such services required high channel bandwidth with secure information transmission and immunity to electromagnetic interference. Radio over free space optics (RoFSO) is witnessed as a promising technological solution to provide high data rate transmission over free space channel. We report on the design of a 2×10 Gb/s-10 GHz RoFSO transmission system using the mode division multiplexing technique and evaluate its transmission performance over varying levels of dust weather conditions. The comparison of non-return to zero (NRZ) and return to zero (RZ) binary digital optical modulation techniques is carried out in the proposed system. It is found that the proposed system using NRZ modulation serves 14.5 km transmission range; however, in the case of RZ modulation, it was restricted to 10 km for a target bit error rate (BER) of 10−6, thus resulting in a noticeable link enhancement of 4.5 km. Also, we demonstrate NRZ-based MDM-RoFSO link performance and availability in dust weather conditions using the BER, maximum reachable link range, and eye diagram as key performance parameters. We obtain a reliable transmission of 20 Gb/s-20 GHz data through HG00 and HG01 channels over a link range of 2500–108 m depending on the external dust weather condition. Furthermore, since this investigation shows the feasibility of RoFSO for small size cells, which is an essential feature of 5G mobile network, the proposed system can thus be implemented as a backhaul/fronthaul link for high-band (above 6 GHz) 5G services and for providing secure transmission of biomedical sensor data.

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“…In addition, values of dust storm dielectric constants also vary with each carrier frequency operation [5], [15], [41].…”

Section: P-to-p System Specification Parameters and Scenariosmentioning

confidence: 99%

Dust Storm and Diffraction Modelling for 5G Spectrum Wireless Fixed Links in Arid Regions

Shamsan

2019

IEEE Access

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The arid climate regions, such as in Riyadh city (Saudi Arabia), are characterized by strong dust storms which can deteriorate the performance of wireless systems. In addition, due to that the accelerated growth in many high buildings in a modern city such as Riyadh creates non-line of sight (NLOS) conditions can be represented by diffraction mechanism causes also attenuation loss affects the received wireless signals. This paper presents a new modelling study on the influence of dust storm and diffraction mechanism on wireless point to point (P-toP) communication links in Riyadh. This unique study uses measured dust storm data and real urban scenarios to simulate the wireless links and investigate the effect on receiver performance based on the receiver sensitivity criterion. Several frequencies allocated for the fifth-generation (5G) wireless systems have been utilized as operation frequencies. The results showed that there is an inverse proportional between the attenuation loss due to diffraction and the distance over which the signal travels between the transmitter and receiver particularly when either the transmitter or the receiver is more close to the diffraction object. This study reveals that higher frequencies lead to higher diffraction loss, higher dust storm loss as well as higher free space loss. Moreover, certain millimeter-wave frequencies, such as 60 GHz, experience very high losses due to atmospheric absorption that can only operate on very short link distances. Besides, there is a need for high-quality receivers, especially for very high operating frequencies.

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Effect of dust storms on FSO communications links

Cited by 24 publications

References 11 publications

Characteristic Study of Visible Light Communication and Influence of Coal Dust Particles in Underground Coal Mines

Characteristic Study of Visible Light Communication and Influence of Coal Dust Particles in Underground Coal Mines

Performance Investigation of a High Data Rate Mode Division Multiplexed-Free Space Optics Link Under Harsh Weather Conditions

Dust Storm and Diffraction Modelling for 5G Spectrum Wireless Fixed Links in Arid Regions

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