Complex improvement of the efficiency of radio electronic devices and information transmission systems with OFDM based on nonlinear systems with dynamic chaos

This article presents the results of modeling a communication system with OFDM using the methods of scrambling the transmitted signals and masking the transmitted information. The paper considers a method of scrambling the transmitted information with pseudo-random sequences obtained by a generator built on the basis of modified dynamic systems. Estimates of the probability of a bit error of the communication system under consideration are obtained, the peak-factor of signals, the correlation characteristics of the scrambled and initial information are estimated, and the entropy of the transmitted information. The results of the article can be used in the design of modern communication systems in order to increase the security of transmitted information and reduce the peak to average power ratio of the generated signals.