Correlated Channel Model for terrestrial Free Space Optics and project specifications evaluation of LT code in OOK modulation

Andò, A; Bonanno, E

Risultato della ricerca: Paper

Abstract

Free Space Optics is a wireless line-of-sight communication system able to offer good bandwidth performance as well as straightforward installation and relocation. So that it represents a modern technology that allow to realize large bandwidth communication particularly when it is not possible to employ physical cable or radio technologies. Examples of FSO applications are: wireless backaul, fiber backup, temporary links, metro network extension and last mile access[1]. FSO is based on optical signals propagation in air and that is why it suffers of impairments which depend on atmospheric conditions. In detail, FSO suffers of scattering (i. e. Rayleigh and Mie) losses, absorption and scintillation. The former two impairments depend on a attenuation coefficient that is larger under hard atmospheric conditions, the latter is a random phenomena mainly noticeable also under clear sky. Scintillation phenomena depends on turbulence which is described by a local variations of the mean index of refraction and finally converted in a fluctuation of the signal optical irradiance. In this paper we describe for the first time a correlated channel model that predicts the temporal behavior of optical signal irradiance. We give also details on LT coding for OOK modulation.
Lingua originaleEnglish
Stato di pubblicazionePublished - 2011

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optical communication
specifications
impairment
optics
meteorology
modulation
irradiance
scintillation
line of sight communication
evaluation
bandwidth
relocation
backups
attenuation coefficients
cables
installing
sky
telecommunication
refraction
coding

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title = "Correlated Channel Model for terrestrial Free Space Optics and project specifications evaluation of LT code in OOK modulation",
abstract = "Free Space Optics is a wireless line-of-sight communication system able to offer good bandwidth performance as well as straightforward installation and relocation. So that it represents a modern technology that allow to realize large bandwidth communication particularly when it is not possible to employ physical cable or radio technologies. Examples of FSO applications are: wireless backaul, fiber backup, temporary links, metro network extension and last mile access[1]. FSO is based on optical signals propagation in air and that is why it suffers of impairments which depend on atmospheric conditions. In detail, FSO suffers of scattering (i. e. Rayleigh and Mie) losses, absorption and scintillation. The former two impairments depend on a attenuation coefficient that is larger under hard atmospheric conditions, the latter is a random phenomena mainly noticeable also under clear sky. Scintillation phenomena depends on turbulence which is described by a local variations of the mean index of refraction and finally converted in a fluctuation of the signal optical irradiance. In this paper we describe for the first time a correlated channel model that predicts the temporal behavior of optical signal irradiance. We give also details on LT coding for OOK modulation.",
author = "{And{\`o}, A; Bonanno, E} and {Riva Sanseverino}, Stefano and Alessandro Busacca and Salvatore Stivala and Andrea Ando' and Gabriele Adamo and Luciano Curcio",
year = "2011",
language = "English",

}

TY - CONF

T1 - Correlated Channel Model for terrestrial Free Space Optics and project specifications evaluation of LT code in OOK modulation

AU - Andò, A; Bonanno, E

AU - Riva Sanseverino, Stefano

AU - Busacca, Alessandro

AU - Stivala, Salvatore

AU - Ando', Andrea

AU - Adamo, Gabriele

AU - Curcio, Luciano

PY - 2011

Y1 - 2011

N2 - Free Space Optics is a wireless line-of-sight communication system able to offer good bandwidth performance as well as straightforward installation and relocation. So that it represents a modern technology that allow to realize large bandwidth communication particularly when it is not possible to employ physical cable or radio technologies. Examples of FSO applications are: wireless backaul, fiber backup, temporary links, metro network extension and last mile access[1]. FSO is based on optical signals propagation in air and that is why it suffers of impairments which depend on atmospheric conditions. In detail, FSO suffers of scattering (i. e. Rayleigh and Mie) losses, absorption and scintillation. The former two impairments depend on a attenuation coefficient that is larger under hard atmospheric conditions, the latter is a random phenomena mainly noticeable also under clear sky. Scintillation phenomena depends on turbulence which is described by a local variations of the mean index of refraction and finally converted in a fluctuation of the signal optical irradiance. In this paper we describe for the first time a correlated channel model that predicts the temporal behavior of optical signal irradiance. We give also details on LT coding for OOK modulation.

AB - Free Space Optics is a wireless line-of-sight communication system able to offer good bandwidth performance as well as straightforward installation and relocation. So that it represents a modern technology that allow to realize large bandwidth communication particularly when it is not possible to employ physical cable or radio technologies. Examples of FSO applications are: wireless backaul, fiber backup, temporary links, metro network extension and last mile access[1]. FSO is based on optical signals propagation in air and that is why it suffers of impairments which depend on atmospheric conditions. In detail, FSO suffers of scattering (i. e. Rayleigh and Mie) losses, absorption and scintillation. The former two impairments depend on a attenuation coefficient that is larger under hard atmospheric conditions, the latter is a random phenomena mainly noticeable also under clear sky. Scintillation phenomena depends on turbulence which is described by a local variations of the mean index of refraction and finally converted in a fluctuation of the signal optical irradiance. In this paper we describe for the first time a correlated channel model that predicts the temporal behavior of optical signal irradiance. We give also details on LT coding for OOK modulation.

UR - http://hdl.handle.net/10447/57898

M3 - Paper

ER -