Publication detail

Simulation of Coding for Atmospheric Optical Channel

KOLKA, Z. BIOLKOVÁ, V. BIOLEK, D. HORÁK, M.

Original Title

Simulation of Coding for Atmospheric Optical Channel

English Title

Simulation of Coding for Atmospheric Optical Channel

Type

conference paper

Language

en

Original Abstract

The paper deals with coding for terrestrial free-space optical links that are characterized by outages in the order of tens of milliseconds. For high transmission rates the optical channel can be simply modeled as a slowly varying AWGN channel. The paper provides a simple framework for FSO channel modeling in the time domain, using samples of power received from a real link or generated by a turbulence model. Simple formulae for transforming the model for different link parameters are provided. The proposed coding scheme is based on a combination of error correction of individual packets and the LDGM code for mitigating short link fades. Data for simulation were obtained from a real 7 km link.

English abstract

The paper deals with coding for terrestrial free-space optical links that are characterized by outages in the order of tens of milliseconds. For high transmission rates the optical channel can be simply modeled as a slowly varying AWGN channel. The paper provides a simple framework for FSO channel modeling in the time domain, using samples of power received from a real link or generated by a turbulence model. Simple formulae for transforming the model for different link parameters are provided. The proposed coding scheme is based on a combination of error correction of individual packets and the LDGM code for mitigating short link fades. Data for simulation were obtained from a real 7 km link.

Keywords

Free-Space optics, unidirectional links, channel coding, simulation

RIV year

2008

Released

17.10.2008

Publisher

MOSHARAKA FOR RESEARCHES AND STUDIES

Location

Jordan

ISBN

978-1-4244-4850-0

Book

Proc. of Mosharaka International Conference on Communications, Signals and Coding

Pages from

20

Pages to

25

Pages count

6

BibTex


@inproceedings{BUT27520,
  author="Zdeněk {Kolka} and Viera {Biolková} and Dalibor {Biolek} and Martin {Horák}",
  title="Simulation of Coding for Atmospheric Optical Channel",
  annote="The paper deals with coding for terrestrial free-space optical links that are characterized
by outages in the order of tens of milliseconds. For high transmission rates the optical
channel can be simply modeled as a slowly varying AWGN channel. The paper provides
a simple framework for FSO channel modeling in the time domain, using samples of
power received from a real link or generated by a turbulence model. Simple formulae for
transforming the model for different link parameters are provided. The proposed coding
scheme is based on a combination of error correction of individual packets and the
LDGM code for mitigating short link fades. Data for simulation were obtained from a
real 7 km link.",
  address="MOSHARAKA FOR RESEARCHES AND STUDIES",
  booktitle="Proc. of Mosharaka International Conference on Communications, Signals and Coding",
  chapter="27520",
  howpublished="print",
  institution="MOSHARAKA FOR RESEARCHES AND STUDIES",
  year="2008",
  month="october",
  pages="20--25",
  publisher="MOSHARAKA FOR RESEARCHES AND STUDIES",
  type="conference paper"
}