Availability analysis of free-space-optical links based on rain rate and visibility statistics from tropical a climate

Basahel, Ahmed; Rafiqul, Islam Md.; Suriza, A.Z.; Habaebi, Mohamed Hadi

doi:10.1016/j.ijleo.2016.08.061

Cited by 25 publications

(7 citation statements)

References 10 publications

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“…In addition to this, the atmospheric attenuation has also been studied according to the raindrop radius and it has been concluded that the atmospheric attenuation decreases with increase in rain drop radius. Basahel et al has analyzed the effects of rain on the availability of FSOC link in Malaysia (Basahel et al 2016). The rainfall data of three years from 1st January, 2011 to 31st December, 2013 has been studied in order to investigate the link availability.…”

Section: Related Workmentioning

confidence: 99%

Performance analysis of free space optical communication system under rain weather conditions: a case study for inland and coastal locations of India

Singh

Mittal

2021

Opt Quant Electron

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This work aims to investigate the performance of Free Space Optical Communication link under average and worst rain weather conditions of India. The meteorological data related to rainfall, from 2014 to 2017, was obtained from the Indian Meteorological Department for six different locations of India, representing the inland and coastal areas. The attenuation coe cient due to rain for all the locations has been calculated using mathematical models. The performance analysis of Wavelength Division Multiplexing based Free Space Optical Communication system has been analyzed, by incorporating the attenuation due to rain for all considered locations, in terms of received power, signal to noise ratio, bit error rate and eye diagrams. The inland location of Hyderabad has given the best results in terms of above mentioned parameters as it has recorded minimum average rainfall of 2.35 mm/hr with minimum attenuation coe cient of 1.91 dB/km and can support a link range of 5.43 km, corresponding to bit error rate of order of 10 -9 under average rain weather conditions. On the other hand, the average rainfall is maximum for the coastal area of Mumbai with a value of 7.31 mm/hr, resulting in maximum attenuation coe cient of 4.08 dB/km and the maximum link range is limited to 3.48 km, corresponding to bit error rate of order of 10 -9 under average conditions of rain weather. Similarly, the inland locations of India have delivered a better link performance as compared to coastal areas under worst rain weather conditions also. So it has been concluded that the coastal areas of India have shown major degradation in the performance of the FSOC link as compared to inland locations of the country.

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Section: Related Workmentioning

confidence: 99%

Performance analysis of free space optical communication system under rain weather conditions: a case study for inland and coastal locations of India

Singh

Mittal

2021

Opt Quant Electron

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“…Besides, haze induces by smoke, mist and other dry particles have low impact on the optical power compare with rain resulting in Mie scattering of optical signal. This scattering will induce attenuation of optical received power, thus reduce the availability of FSO link for a given link distance [9]. As Bangladesh lies near equator and has a subtropical monsoon climate, we have considered fog and rain as our main weather conditions.…”

Section: Imentioning

confidence: 99%

Design of Novel Hybrid CPDM-CO-OFDM FSO Communication System and its Performance Analysis under Diverse Weather Conditions

Chowdhury,

Choyon

2021

Preprint

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A comprehensive novel design is proposed for the free-space optical (FSO) communication system by hybridizing circular polarization division multiplexing (CPDM) with coherent optical orthogonal frequency division multiplexing (CO-OFDM) and its performance is investigated realistically under diverse turbulent weather conditions of Bangladesh. Here we consider Gamma-Gamma (G-G) distribution for the turbulent FSO channel model. Moreover, the proposed scheme presents an excellent performance since CPDM technique not only maximizes the link capacity of FSO system but also enhances the spectral efficiency (SE) of the system. Besides, multipath-fading, which is appeared during the FSO transmission, is significantly mitigated by OFDM modulation. The outcomes from simulation confirm the advantages of the proposed hybrid scheme and also it can serve as a reference for the FSO application even in the turbulent weather conditions. Performance analysis of the proposed model is described in terms of optical power spectrum (OPS), optical signal to noise ratio (OSNR), bit error rate (BER), Q factor, constellation diagrams, and eye diagrams.

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“…Each region derives its model which best represent its region and fit with its local weather data.For example, in a tropical climate, rain is the most constant factor that occurs most of the year [10]. Normal haze also be considered as a parameter that influences the optical signal [11]- [12]. For a given fade statistics under tropical climate condition as shown in Figure 2 The availability predition model can be derived and presented as follow [13]:…”

Section: Availability Prediction Using Local Weather Fade Statisticsmentioning

confidence: 99%

Availability Prediction Methods for Terrestrial Free-Space-Optical Link Under Tropical Climate

Basahel¹,

Islam²,

Habaebi³

et al. 2018

IJEECS

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<p>Free-space optical (FSO) links provide high speed point-to-point wireless communication, but its availability can easily be affected by weather conditions. In heavy rainfall regions, FSO links are relatively sensitive to rain. Availability prediction of FSO is indispensable part, especially in tropical areas. In this paper, methods to predict FSO link availability are presented. The overall performance of FSO link is described in terms of the availability that can be achieved over anticipated link distance. The availability prediction methods demonstrated for an FSO link ranges up to 5 km. The availability prediction methods are based on long-term statistics of atmospheric attenuations and FSO link budget under tropical climate condition. In tropical regions, for a terrestrial FSO link, carrier class availability can be achieved over a few hundred meters only; whereas enterprise class availability can be achieved over a few kilometers link distances. </p>

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Availability analysis of free-space-optical links based on rain rate and visibility statistics from tropical a climate

Cited by 25 publications

References 10 publications

Performance analysis of free space optical communication system under rain weather conditions: a case study for inland and coastal locations of India

Performance analysis of free space optical communication system under rain weather conditions: a case study for inland and coastal locations of India

Design of Novel Hybrid CPDM-CO-OFDM FSO Communication System and its Performance Analysis under Diverse Weather Conditions

Availability Prediction Methods for Terrestrial Free-Space-Optical Link Under Tropical Climate

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