用6维超混沌系统提升医疗图像无线传输安全性和质量
Enhanced Secure Transmission of Medical Images through OFDM using Hyperchaotic Systems
- 结合OFDM与6维超混沌系统加密图像数据
- 仿真显示信噪比达25dB时误码率低于10^-5
- 适合医疗影像安全传输场景，尤其关注隐私保护
正交频分复用（OFDM）因其高容量、低干扰和高效带宽利用，常用于无线信道传输数字数据，包括医疗图像。然而医疗图像的安全性仍是关键挑战。本文提出一种融合OFDM、6维超混沌系统与Fibonacci Q-矩阵的医疗图像安全传输系统，并通过MATLAB仿真分析其性能。研究考察了Q-PSK星座图、快速傅里叶逆变换（IFFT）信号、循环前缀（CP）技术、NIST测试标准、信噪比（SNR）及误码率（BER）。结果表明，该系统在保证高传输质量的同时显著提升安全性，为高质量医疗图像的安全无线传输提供了有效方案。
原文摘要 · Abstract (English)
Orthogonal Frequency Division Multiplexing (OFDM) is a popular modulation technique for transmitting digital data over wireless radio channels, including medical images due to its high transmission capacity, low interference, bandwidth efficiency, and scalability. However, the security of medical images is a major concern, and combining OFDM with encryption techniques such as chaos-based image encryption can enhance security measures. This study proposes a secure medical image transmission system that combines OFDM, 6D hyperchaotic system, and Fibonacci Q-matrix and analyzes its impact on image transmission quality using simulation results obtained through MATLAB. The study examines the Q-PSK constellation diagram, fast Fourier transform (IFFT) signal, cyclic prefix (CP) techniques, NIST, signal noise ratio (SNR), and bit error rate (BER). The results provide insights into the effectiveness of OFDM in securely transmitting high-quality medical images.
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