On stochastic model for underwater wireless optical links

Light beam suffers attenuation due to absorbtion and multiple scattering when propagating through underwater environment especially in turbid water. The spatial and temporal distribution of photons after propagation can quantify this channel attenuation and therefore is a key issue for underwater wi...

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Bibliographic Details
Published in2014 IEEE/CIC International Conference on Communications in China (ICCC) pp. 156 - 160
Main Authors Huihui Zhang, Yuhan Dong, Xuedan Zhang
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.10.2014
Subjects
Apertures
Monte Carlo
Monte Carlo methods
Optical fiber communication
Photonics
Receivers
Scattering
stochastic channel model
Stochastic processes
Underwater wireless optical communications
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Summary:Light beam suffers attenuation due to absorbtion and multiple scattering when propagating through underwater environment especially in turbid water. The spatial and temporal distribution of photons after propagation can quantify this channel attenuation and therefore is a key issue for underwater wireless optical communications (UWOC). Typically, the spatial distribution of photons consists two key factors which are the moving distance and scattering angle for each photon before and after interacting with a particle, respectively. In this paper, we present a stochastic model for UWOC links by adopting the Henyey-Greenstein (HG) function as probability density function (PDF) of scattering angle and deriving the PDF of step distance for each photon. The proposed stochastic model can be used to evaluate the spatial and temporal distribution of photons, which fits well with Monte Carlo simulation result in turbid seawater such as coastal water.
ISSN:2377-8644
DOI:10.1109/ICCChina.2014.7008263