BER performance of free-space optical transmission with spatial diversity

S. Mohammad Navidpour, Murat Uysal, Mohsen Kavehrad

Research output: Contribution to journalArticle

523 Citations (Scopus)

Abstract

Free space optical (FSO) communications is a cost-effective and high bandwidth access technique, which has been receiving growing attention with recent commercialization successes. A major impairment in FSO links is the turbulence-induced fading which severely degrades the link performance. To mitigate turbulence-induced fading and, therefore, to improve the error rate performance, spatial diversity can be used over FSO links which involves the deployment of multiple laser transmitters/receivers. In this paper, we investigate the bit error rate (BER) performance of FSO links with spatial diversity over log-normal atmospheric turbulence fading channels, assuming both independent and correlated channels among transmitter/receiver apertures. Our analytical derivations build upon an approximation to the sum of correlated log-normal random variables. The derived BER expressions quantify the effect of spatial diversity and possible spatial correlations in a log-normal channel.

Original languageEnglish (US)
Pages (from-to)2813-2819
Number of pages7
JournalIEEE Transactions on Wireless Communications
Volume6
Issue number8
DOIs
StatePublished - Aug 1 2007

Fingerprint

Spatial Diversity
Optical links
Free Space
Light transmission
Bit error rate
Error Rate
Fading
Transceivers
Transmitter
Turbulence
Receiver
Free-space Optical Communication
Atmospheric turbulence
Atmospheric Turbulence
Spatial Correlation
Optical communication
Fading Channels
Random variables
Fading channels
Quantify

All Science Journal Classification (ASJC) codes

  • Computer Science Applications
  • Electrical and Electronic Engineering
  • Applied Mathematics

Cite this

Navidpour, S. Mohammad ; Uysal, Murat ; Kavehrad, Mohsen. / BER performance of free-space optical transmission with spatial diversity. In: IEEE Transactions on Wireless Communications. 2007 ; Vol. 6, No. 8. pp. 2813-2819.
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BER performance of free-space optical transmission with spatial diversity. / Navidpour, S. Mohammad; Uysal, Murat; Kavehrad, Mohsen.

In: IEEE Transactions on Wireless Communications, Vol. 6, No. 8, 01.08.2007, p. 2813-2819.

Research output: Contribution to journalArticle

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