BER performance of MIMO free-space optical links

S. Mohammad Navidpour, Murat Uysal, Jing Li

Research output: Contribution to journalConference articlepeer-review


Free space optical (FSO) communications is a cost-effective and high bandwidth access technique, which has been receiving growing attention with recent commercialization successes. Spatial diversity, which involves the use of multiple laser transmitters/receivers, can be used over FSO links to mitigate turbulence-induced fading, resulting in error-rate-performance improvement In this paper, we investigate BER (bit error rate) performance of MEMO (multiple-input multiple-output) FSO links over lognormal atmospheric turbulence fading channels, assuming both independent and correlated channels among transmitter/receiver apertures. Our derivations clearly demonstrate the effect of diversity in a lognormal channel, which turns out to be much different from a Rayleigh fading channel, which is frequently used to model radio-frequency (RF) wireless fading channels.

Original languageEnglish (US)
Pages (from-to)3378-3382
Number of pages5
JournalIEEE Vehicular Technology Conference
Issue number5
StatePublished - 2004
Event2004 IEEE 60th Vehicular Technology Conference, VTC2004-Fall: Wireless Technologies for Global Security - Los Angeles, CA, United States
Duration: Sep 26 2004Sep 29 2004


  • Atmospheric turbulence
  • Bit error rate
  • Free space optical communication
  • Lognormal channel
  • MIMO

ASJC Scopus subject areas

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


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