DocumentCode
2239942
Title
Terrestrial free-space optical links with temporal diversity
Author
Popoola, W.O. ; Ghassemlooy, Z. ; Leitgeb, E. ; Ahmadi, V.
Author_Institution
Opt. Commun. Res. Group, Northumbria Univ., Newcastle upon Tyne, UK
fYear
2010
fDate
21-23 July 2010
Firstpage
598
Lastpage
603
Abstract
In this work, the performance of subcarrier intensity modulated terrestrial free-space optical communication link is analysed in the presence of noise and atmospheric turbulence induced fading. To ameliorate channel fading we propose subcarrier time delay diversity (TDD) in which delayed versions of the original data are retransmitted on different subcarriers. The most efficient TDD is obtained with single re-transmission with an estimated gain of up to 4.5 dB in weak turbulence.
Keywords
atmospheric turbulence; fading channels; optical links; ameliorate channel fading; atmospheric turbulence; gain 4.5 dB; noise; subcarrier intensity modulated terrestrial free-space optical communication link; temporal diversity; time delay diversity; Bit error rate; Fading; Gain; Noise; Optical receivers; Sensitivity; Free-space optics; retransmission; subcarrier multiplexing; time delay diversity;
fLanguage
English
Publisher
ieee
Conference_Titel
Communication Systems Networks and Digital Signal Processing (CSNDSP), 2010 7th International Symposium on
Conference_Location
Newcastle upon Tyne
Print_ISBN
978-1-4244-8858-2
Electronic_ISBN
978-1-86135-369-6
Type
conf
Filename
5580363
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