Improving the availability of terrestrial FSO links over log normal atmospheric turbulence channels using dispersive chirped Gaussian pulses

In this work, the influence of group velocity dispersion on the availability of a turbulent free space optical channel modeled with the log normal distribution is investigated. By assuming longitudinal Gaussian pulse propagation, analytical expressions for the probability of fade of such links are provided. The cases where the dispersion effect can be used in order to ameliorate the system's performance are studied and mathematical expressions for the evaluation of system's specific parameters are also derived. Moreover, various numerically evaluated results are presented.