We derived the average bit error rate (BER) of coherent free-space optical (FSO) systems with digital
binary phase shift keying (BPSK) modulations over atmospheric turbulence channels with a gamma–gamma
distribution. To obtain a generalized derivation in a closed-form expression, we used special integrals and
transformations of the Meijer G function. Furthermore, we numerically analyzed and simulated the average
BER behavior according to the average SNR for different turbulence strengths. Simulation results are
demonstrated to confirm the analytical results.
© 2015 Optical Society of Korea
OSA participates in Crossref's Cited-By Linking service. Citing articles from OSA journals and other participating publishers are listed here.