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.
Digital Communications, Security, OFDM, Chaos, Interleaving.
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TẠP CHÍ KHOA HỌC VÀ CÔNG NGHỆ Giấy phép số37/GP-BTTTT (15/01/2021) Giấy phép sửa đổi, bổ sung số140/GP-BTTTT (05/3/2021) Đơn vị cấp phép:Bộ Thông tin và Truyền thông Cơ quan chủ quản:Trường Đại học Bách Khoa Hà Nội Phó tổng biên tập phụ trách:GS. Đinh Văn Phong