Pointing Error Effects on Free-Space Optical Communication Links in the Presence of Atmospheric Turbulence

Borah, Deva K.; Voelz, David G.

doi:10.1109/jlt.2009.2022771

Cited by 183 publications

(97 citation statements)

References 18 publications

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“…I = I (a) I (p) , representing I (a) and I (p) the attenuation due to atmospheric turbulence and the attenuation due to geometric spread and pointing errors, respectively, between transmitter and receiver. Although the effects of turbulence and pointing are not strictly independent, for smaller jitter values they can be approximated as independent [8]. To consider a wide range of turbulence conditions (weak to strong), the gamma-gamma turbulence model proposed in [1,3] is here assumed, whose probability density function (PDF) is given by…”

Section: Atmospheric Turbulence Channelmentioning

confidence: 99%

“…In [38] the error rate performance for coded FSO links over strong turbulence and misalignment fading channels is studied. The capacity calculation and the analysis of error rate performance for FSO links over log-normal and gamma-gamma turbulence and misalignment fading channels is presented in [8] using a wave optics based approach. In [18,39], a wide range of turbulence conditions with gamma-gamma atmospheric turbulence and pointing errors is also considered on terrestrial FSO links, deriving closed-form expressions for the error-rate performance in terms of Meijer's G-functions.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Rate-Adaptive Free-Space Optical Links Over Atmospheric Turbulence and Misalignment Fading Channels

García-Zambrana¹,

Castillo-Vázquez²,

Castillo-Vázquez³

2012

Optical Communication

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Section: Atmospheric Turbulence Channelmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Rate-Adaptive Free-Space Optical Links Over Atmospheric Turbulence and Misalignment Fading Channels

García-Zambrana¹,

Castillo-Vázquez²,

Castillo-Vázquez³

2012

Optical Communication

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“…F REE-space optical (FSO) links [1], [2] provide an attractive design alternative for base station-base station (BS-BS) in cooperative multicell (COMP) scenarios [3], [4] to the classic radio-frequency (RF) microwave links, where the turbulent outdoor channel suffers from adverse propagation conditions. They also offer a design alternative for the extremely challenginga ircraft-to-aircraft and aircraftto-satellite vehicular communications scenarios [5]- [7], with the goal of providing sophisticate wireless multimedia service, and Internet access above the clouds [8].…”

Section: Introductionmentioning

confidence: 99%

Aperture Selection for ACO-OFDM in Free-Space Optical Turbulence Channel

Jiang

Zhang

et al. 2016

IEEE Trans. Veh. Technol.

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Abstract-We propose a novel aperture selection (ApS) scheme for asymmetrically clipped optical orthogonal frequency-division multiplexing (ACO-OFDM) based multiple transmit/receive aperture (MTRA) system communicating over a free-space optical (FSO) turbulence channel between a pair of cooperating base-stations in a vehicular communication system. Our proposed ApS scheme is capable of significantly improving both the system's achievable diversity gain, its bit error ratio as well as its throughput, while imposing a substantially reduced power consumption and hardware complexity. Our results demonstrate that the proposed system's performance was improved more significantly under strongly turbulent channel conditions. Index Terms-Free-space optical turbulence channel, asymmetrically clipped optical orthogonal frequencydivision multiplexing, multiple transmit/receive aperture, aperture selection

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“…It was found that, in the strongly turbulent scenario, the OOK and DPSK formats can have as large as 19.5 and 20.3 dB of SDRT gains at the BER of 10 -3 , respectively. Borah et al [14] studied effects of pointing errors on the performance of a freespace optical laser communication. In this paper lognormal and gamma-gamma irradiance probability density function models have been considered to include the effects of optical turbulence.…”

Section: Introductionmentioning

confidence: 99%

Performance Analysis of 16 × 2.5Gb/s FSO System for the Most Critical Weather Conditions

Kaur¹,

Sheetal²

2015

International Journal of Advanced Research in Computer and Comm

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Free space optics (FSO) uses air as a transmission medium and is significantly affected by the various weather conditions such as haze, rain, fog, snow, wind, etc. In this paper, the behaviour of 16 × 2.5Gb/s FSO system under the effect of the most critical weather conditions using RZ format has been investigated. The operating channel frequencies range from 193.4THz to 189.7THz with the frequency spacing of 100GHz.The performance of the 10 th channel has been considered being the worst case scenario to analyse the system. The FSO system is evaluated by varying attenuation from 4.2850dB/km to 116dB/km under different weather conditions. It has been found that as attenuation increases the performance drastically degrades owing to scattering, absorption, free space path loss, geometric losses and other losses suffered by the FSO system. The faithful transmission distance achieved is 9000m in clear weathers and has reduced to 2000m and 100m in case of heavy rain and dense snow respectively. Further, it is shown that channel 2 operating at 193.16THz, gives best results for the FSO system at 40Gb/s where the highest value of Q factor is 29.16dB and OSNR is 80.060dB and 4.9dB value of OSNR for heavy rain has been achieved thus, dense snow, fog and heavy rain are the worst weather conditions which intensely degrade the performance of FSO system.

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Pointing Error Effects on Free-Space Optical Communication Links in the Presence of Atmospheric Turbulence

Cited by 183 publications

References 18 publications

Rate-Adaptive Free-Space Optical Links Over Atmospheric Turbulence and Misalignment Fading Channels

Rate-Adaptive Free-Space Optical Links Over Atmospheric Turbulence and Misalignment Fading Channels

Aperture Selection for ACO-OFDM in Free-Space Optical Turbulence Channel

Performance Analysis of 16 × 2.5Gb/s FSO System for the Most Critical Weather Conditions

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