基于NOMA的人工噪声物理层安全性能研究Security Performance Analysis of Artificial Noise Physical-Layer Based on NOMA
韩帅,董增寿,李美玲
摘要(Abstract)：
添加人工噪声也是提升物理层安全性能的重要方式之一,能够有效抑制窃听行为,对于提升物理层的安全可靠性也有帮助。将非正交多址接入技术(NOMA)融入传统的人工噪声辅助方案中,在提升物理层安全性能的同时也可以节约频谱资源,考虑非信任中继节点的情况下,提出基于NOMA技术的人工噪声辅助方案,推导该方案的中断概率和遍历和速率,并给出了遍历和速率上界的表达式。仿真结果表明,NOMA方案相比传统的正交多址接入技术(OMA)中断概率更低,同时也提升了系统的遍历和速率,证明NOMA方案可以有效提升物理层的安全可靠性,也可以防止非信任中继节点对信息进行窃取。
关键词(KeyWords)： 人工噪声;NOMA;非信任中继;中断概率;遍历和速率
基金项目(Foundation): 山西省重点学科建设经费资助
作者(Author): 韩帅,董增寿,李美玲
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