A Noise Injection Scheme Resistant to Massive MIMO Eavesdropper in IoT
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摘要:
物联网中无线传输的安全难题是制约其发展的重要瓶颈，物联网终端受限的计算能力与硬件配置以及配备大规模天线阵列的窃听者给物理层安全技术带来了新的挑战。针对该问题，该文提出一种可对抗大规模天线阵列窃听者的轻量级噪声注入策略。首先，对所提出的噪声注入策略进行介绍，并分析了该策略的安全性；然后，基于该策略得到了系统吞吐量的闭式表达式，并对时隙分配系数和功率分配系数进行优化设计。理论和仿真结果表明，通过对物联网系统参数进行设计，所提出的噪声注入策略能够实现私密信息的安全传输。
Abstract:The security issue of wireless transmission becomes a significant bottleneck in the development of Internet of Things (IoT). The limited computing capability and hardware configuration of IoT terminals and eavesdroppers equipped with massive Multiple-Input Multiple-Output (MIMO) bring new challenges to physical layer security technology. To solve this problem, a lightweight noise injection scheme is proposed that can combat massive MIMO eavesdropper. Firstly, the proposed noise injection scheme is introduced, along with the corresponding secrecy analysis. Then, the close-formed expression of the throughput is derived based on the proposed scheme. Furthermore, the slot allocation coefficient and power allocation coefficient are optimized. The analytical and simulation results show that the proposed noise injection scheme can achieve the security of private information transmission by designing of the IoT system parameters.
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Key words:
- Internet of Things (IoT) /
- Physical layer security /
- Noise injection
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