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Proceedings Paper

Bit error distribution measurements in the atmospheric optical fading channel
Author(s): Michal Kubicek; Hennes Henniger; Zdenek Kolka
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Paper Abstract

On/Off-Keying (OOK) data transmission in the atmospheric optical channel suffers from slow fading of the received power. Fading is produced by index of refraction turbulence and transmitter and receiver terminal alignment errors produced by tracking errors. Standard bit-error-ratio measurement techniques count the number of errors during a fixed time. Variation of measurement duration can change the measurement result significantly. Further measurement times are normally longer than fading events. Therefore no information about the distribution of bits in error in a data-stream can be measured with standard bit-error-rate testers. However the error distribution is important for the design of error correction methods like forward error correction. Therefore a special device has been developed to measure the error distribution. A description of this device is given in this paper. Further first measurements results are presented.

Paper Details

Date Published: 13 February 2008
PDF: 8 pages
Proc. SPIE 6877, Free-Space Laser Communication Technologies XX, 68770B (13 February 2008); doi: 10.1117/12.762684
Show Author Affiliations
Michal Kubicek, Brno Univ. of Technology (Czech Republic)
German Aerospace Ctr. (DLR) (Germany)
Hennes Henniger, German Aerospace Ctr. (DLR) (Germany)
Zdenek Kolka, Brno Univ. of Technology (Czech Republic)

Published in SPIE Proceedings Vol. 6877:
Free-Space Laser Communication Technologies XX
Steve Mecherle, Editor(s)

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