论文标题
安全通信中的非正交波形
Non-Orthogonal Waveforms in Secure Communications
论文作者
论文摘要
这项工作调查了使用非正交多载波波形来防御窃听攻击的可能性。非正交信号所需的复杂检测提供了安全通信中的自然防御机制。但是，诸如最大似然检测之类的蛮力策略将通过尝试所有可能的解决方案来打破防御。因此，提出了一种波形缩放策略来扩大非正交填充子载体的数量，这使信号检测复杂并防止了窃听。此外，提出了一种波形调整策略来有意调整波形参数，以增强特征相似性。因此，窃听者会混淆误导信号，从而导致随后的检测故障。
This work investigates the possibility of using non-orthogonal multi-carrier waveforms to defend against eavesdropping attacks. The sophisticated detection required for non-orthogonal signals provides a natural defence mechanism in secure communications. However, brute-force tactics such as maximum likelihood detection would break the defence by attempting all possible solutions. Thus, a waveform scaling strategy is proposed to scale up the number of non-orthogonally packed sub-carriers, which complicates signal detections and prevents eavesdropping. In addition, a waveform tuning strategy is proposed to intentionally tune waveform parameters to enhance feature similarity. Therefore, eavesdroppers would be confused to misidentify signals resulting in subsequent detection failures.
