Space-time coding versus repetition coding for free-space optical communication

Majid Safari, Murat Uysal

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

Abstract

In this paper, we investigate spatial diversity techniques for free-space optical (FSO) links with intensity modulation and direct detection (IM/DD) over log-normal atmospheric turbulence-induced fading channels. We consider the deployment of space-time block codes and repetition codes. Our performance analysis demonstrates that although both schemes are able to extract full diversity, repetition codes outperform their counterparts. The performance gap increases as the number of transmit apertures increases. Our findings clearly point out that deployment of space-time coding is not necessary for a FSO IM/DD link.

Original languageEnglish (US)
Title of host publicationConference Record of the 41st Asilomar Conference on Signals, Systems and Computers, ACSSC
Pages1030-1033
Number of pages4
DOIs
StatePublished - 2007
Event41st Asilomar Conference on Signals, Systems and Computers, ACSSC - Pacific Grove, CA, United States
Duration: Nov 4 2007Nov 7 2007

Publication series

NameConference Record - Asilomar Conference on Signals, Systems and Computers
ISSN (Print)1058-6393

Other

Other41st Asilomar Conference on Signals, Systems and Computers, ACSSC
Country/TerritoryUnited States
CityPacific Grove, CA
Period11/4/0711/7/07

Keywords

  • Atmosheric turbulence
  • Free-space optical communication
  • Space-time coding
  • Spatial diversity

ASJC Scopus subject areas

  • Signal Processing
  • Computer Networks and Communications

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