BER performance analysis of M-ary PPM over exponentiated Weibull distribution for airborne laser communications

摘要

Airborne optical communication systems have been widely used for high-speed data transmission. In this paper, the average bit error rate (BER) of M-ary pulse position modulation (PPM) of airborne optical communication systems is analyzed under the combined influence of atmospheric turbulence and aero-optic effects. The atmospheric turbulence is modeled by the exponentiated Weibull (EW) distribution that can accurately describe the probability density function distribution of the irradiance under weak to strong conditions in the presence of aperture averaging. Next, we use our derived form to study the effect of atmospheric conditions, operating wavelength, and modulation level on the system performance. Moreover, the BER performance is analyzed for different aperture sizes of the receiver as well. Results suggest that the aperture averaging technique can significantly improve the system performance in turbulence and aero-optics effects. Furthermore, this work is helpful for the compensate technique of system performance on an airborne optical communication system. (C) 2017 Optical Society of America