Terrestrial free-space optical links with temporal diversity

W. O. Popoola, Z. Ghassemlooy*, E. Leitgeb, V. Ahmadi

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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.

Original languageEnglish
Title of host publication2010 7th International Symposium on Communication Systems, Networks and Digital Signal Processing, CSNDSP 2010
Pages598-603
Number of pages6
Publication statusPublished - 12 Nov 2010
Event2010 7th International Symposium on Communication Systems, Networks and Digital Signal Processing, CSNDSP 2010 - Newcastle upon Tyne, United Kingdom
Duration: 21 Jul 201023 Jul 2010

Conference

Conference2010 7th International Symposium on Communication Systems, Networks and Digital Signal Processing, CSNDSP 2010
Country/TerritoryUnited Kingdom
CityNewcastle upon Tyne
Period21/07/1023/07/10

Keywords

  • Free-space optics
  • Retransmission
  • Subcarrier multiplexing
  • Time delay diversity

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