Title :
Coherent Free-Space Optical Communications in Lognormal-Rician Turbulence
Author :
Yang, Fan ; Cheng, Julian
Author_Institution :
Dept. of Inf. Sci. & Eng., Southeast Univ., Nanjing, China
fDate :
11/1/2012 12:00:00 AM
Abstract :
A coherent free-space optical communication system is analyzed for lognormal-Rician turbulence channels using Padé approximants. Highly accurate closed-form BER expressions are developed for binary phase-shift keying with maximum ratio combining and binary differential phase-shift keying with selection combing receptions. Asymptotic error rate analyses for these systems are also presented.
Keywords :
Rician channels; differential phase shift keying; error statistics; optical communication; optical modulation; Padé approximants; asymptotic error rate analyses; binary differential phase-shift keying; closed-form BER expressions; coherent free-space optical communication system; lognormal-Rician turbulence channels; maximum ratio combining; selection combing receptions; Adaptive optics; Approximation methods; Bit error rate; Differential phase shift keying; Optical fiber communication; Signal to noise ratio; Coherent free-space optical communications; Pad'e approximation; lognormal-Rician turbulence channels;
Journal_Title :
Communications Letters, IEEE
DOI :
10.1109/LCOMM.2012.100812.121341
