Secure Transmission of Noisy Images over Fiber Optic Communication

Optical fiber has become the medium of choice for reliable high speed and high capacity data transfer. Signal to Noise Ratio (SNR) and Bit Error Rate (BER) are two important parameters used for evaluating the quality of Fiber Optic transmission. SNR is a logarithmic ratio of the received signal and noise power, while BER is the measure of the probability of incorrect bit identification. This paper aims to improve the transmission security for images over Fiber Optic communication. Several modulation methods have been implemented to find the best modulation method for transmission over a Fiber Optic channel in the single-mode to minimize SNR and BER. To maximize the correlation value between transferred and received images, the Malta Simulink environment has been used. The simulation results showed that the best accuracy can be obtained using Binary Phase-Shift Keying (BPSK).