Performance Evaluation of An OFDM-FSO-Steganography Model

A steganography technique for a secured free space optical communication system is presented in this work. In this technique, the original message is hidden by a cover image and hidden message is extracted at the receiver without being eavesdropped. The work is carried out by considering gamma-gamma channel model under adverse turbulence and weather conditions. The proposed orthogonal frequency division multiplexing-free space optical communication-Steganography (OFDM-FSO-Steganography) model yields better BER and covers maximum distance as compared to the existing FSO system.