Title :
Error rate performance for STBC in free-space optical communications through strong atmospheric turbulence
Author :
García-Zambrana, Antonio
Author_Institution :
Dept. of Commun. Eng., Malaga Univ.
fDate :
5/1/2007 12:00:00 AM
Abstract :
In this letter, error rate performance for space-time block coding (STBC) in free-space optical (FSO) communication systems with direct detection operating over strong atmospheric turbulence channels is analyzed. Based on the modification of the Alamouti code presented by Simon and Vilnrotter, a generalized approach is adopted to consider space-time coded on-off keying (OOK) formats with any pulse shape and reduced duty cycle, allowing the increase of the peak-to-average optical power ratio (PAOPR) and, hence, a relevant improvement in error rate performance. Simulation results are further demonstrated to confirm the analytical results
Keywords :
amplitude shift keying; atmospheric turbulence; block codes; error statistics; optical communication; space-time codes; Alamouti code; FSO; OOK; STBC; atmospheric turbulence channel; error rate performance; free-space optical communication system; on-off keying format; space-time block coding; Additive white noise; Atmospheric modeling; Error analysis; Fading; High speed optical techniques; Optical fiber communication; Optical noise; Optical pulse shaping; Optical receivers; Optical transmitters;
Journal_Title :
Communications Letters, IEEE
DOI :
10.1109/LCOMM.2007.061980
