Coherent free-space optical transmission with diversity combining for Gamma-Gamma atmospheric turbulence

Author

Niu, Mingbo ; Cheng, Julian ; Holzman, Jonathan F. ; Schober, Robert

Author_Institution

Sch. of Eng., Univ. of British Columbia, Kelowna, BC, Canada

fYear

2010

fDate

12-14 May 2010

Firstpage

217

Lastpage

220

Abstract

The error rate performance of coherent free-space optical transmission is studied for Gamma-Gamma turbulent environments. The moment generating function of Gamma-Gamma distributed irradiance is obtained, along with a closed-form expression for the characteristic function for the square root of Gamma-Gamma distributed irradiance. Biterror rate expressions are presented for binary phase-shift keying multiple-input multiple-output free-space optical transmission with maximum ratio combining and equal gain combining receptions. These coherent optical systems are shown to greatly improve the system error rate performance.

Keywords

MIMO communication; atmospheric turbulence; diversity reception; error statistics; light transmission; optical communication; phase shift keying; binary phase-shift keying; bit error rate expressions; coherent multiple-input multiple-output free-space optical transmission; diversity combination; equal gain combining receptions; error rate performance; gamma-gamma atmospheric turbulence; gamma-gamma distributed irradiance; maximum ratio combining; moment generating function; Atmospheric modeling; Bit error rate; Diversity reception; Local oscillators; Optical beams; Optical mixing; Optical noise; Optical receivers; Photodetectors; Signal to noise ratio;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications (QBSC), 2010 25th Biennial Symposium on

Conference_Location

Kingston, ON

Print_ISBN

978-1-4244-5709-0

Type

conf

DOI

10.1109/BSC.2010.5472924

Filename

5472924