A Lightweight Secure and Resilient Transmission Scheme for the Internet of Things in the Presence of a Hostile Jammer
A Lightweight Secure and Resilient Transmission Scheme for the Internet of Things in the Presence of a Hostile Jammer
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DOI：
10.1109/jiot.2020.3026475
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发表时间：
2021-03-15
影响因子：
10.6
通讯作者：
Piran，Md Jalil
中科院分区：
文献类型：
--
作者：
Letafati，Mehdi;Kuhestani，Ali;Piran，Md Jalil
在这篇文章中，我们提出了一个轻量级的安全方案，以确保物联网（IoT）通信中的信息机密性和传输弹性。单天线发射机与半双工单天线接收机在复杂的多天线辅助被动窃听器和多天线辅助敌对干扰机（HJ）的存在下进行通信。提出了一种低复杂度的人工噪声注入方案来淹没窃听者。此外，为了增强对HJ攻击的弹性，合法节点利用自己的无线信道的本地观测作为随机性的来源，以商定共享密钥。该密钥用于所提出的通信系统的跳频（FH）序列。然后，我们继续推导出一个新的封闭形式的表达可实现的密钥速率（SKR）和遍历保密率（ESR）的特征的保密利益，我们提出的计划，在信息保密和传输弹性。此外，AN和消息信号之间的最佳功率共享的目的是提高保密率进行了研究。最后，通过大量的模拟，我们证明了我们提出的系统模型优于国家的最先进的传输方案的保密性和弹性。还提供了几个数值例子和讨论，以提供进一步的工程见解。
In this article, we propose a lightweight security scheme for ensuring both information confidentiality and transmission resiliency in the Internet-of-Things (IoT) communication. A single-antenna transmitter communicates with a half-duplex single-antenna receiver in the presence of a sophisticated multiple-antenna-aided passive eavesdropper and a multiple-antenna-assisted hostile jammer (HJ). A low-complexity artificial noise (AN) injection scheme is proposed for drowning out the eavesdropper. Furthermore, for enhancing the resilience against HJ attacks, the legitimate nodes exploit their own local observations of the wireless channel as the source of randomness to agree on shared secret keys. The secret key is utilized for the frequency hopping (FH) sequence of the proposed communication system. We then proceed to derive a new closed-form expression for the achievable secret key rate (SKR) and the ergodic secrecy rate (ESR) for characterizing the secrecy benefits of our proposed scheme, in terms of both information secrecy and transmission resiliency. Moreover, the optimal power sharing between the AN and the message signal is investigated with the objective of enhancing the secrecy rate. Finally, through extensive simulations, we demonstrate that our proposed system model outperforms the state-of-the-art transmission schemes in terms of secrecy and resiliency. Several numerical examples and discussions are also provided to offer further engineering insights.