A Novel Chaotic Subcarriers Interleaving Approach for Secured OFDM Communication Systems ☆

In this paper, we propose a chaotic interleaving approach for efficient data transmission with orthogonal frequency division multiplexing (OFDM). The subcarriers are interleaved with the proposed approach prior to the modulation step. The chaotic Baker map is used in the proposed interleaving approach. In addition to reducing Peak to Average Power Ratio (PAPR), the proposed chaotic interleaving approach adds a degree of encryption to the transmitted data. The performance of the proposed approach is evaluated by the transmission of bit stream over Gauss and Rayleigh channels with different modulation schemes.