A Cooperative Jamming Scheme for Physical Layer Security enhancement in Multihop IoT Networks with Colluding Eavesdroppers
A Cooperative Jamming Scheme for Physical Layer Security enhancement in Multihop IoT Networks with Colluding Eavesdroppers
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DOI：
10.1109/ssp49050.2021.9513798
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发表时间：
2021-07
期刊：
影响因子：
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通讯作者：
Zaid Abdullah;Gaojie Chen;J. Chambers
中科院分区：
文献类型：
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作者：
Zaid Abdullah;Gaojie Chen;J. Chambers
物联网（IoT）网络的目标之一是通过连接数十亿设备用于各种应用，从而实现智慧城市。如此大规模的连接可能面临许多重大挑战，其中之一就是安全问题。因此，我们提出了一种针对多跳物联网网络的协同干扰（CJ）方案，其中每个传输符号由两个混合双工干扰节点保护，免受随机位置的串通窃听者的干扰。与传统的单干扰（SJ）方法相比，我们提出的方案在不增加功率成本的情况下提供了显着的性能增强。特别是，为了实现10−1的保密中断概率，假设跳数为8，所提出的CJ方案比SJ方案的干扰信噪比（SNR）高3.5 dB。导出了保密中断概率的积分封闭表达式，并通过蒙特卡罗模拟进行了验证。
An aim of Internet-of-Things (IoT) networks is to enable smart cities by connecting billions of devices for various applications. Such a massive connectivity can face many vital challenges, one of which is security. Accordingly, we propose a Cooperative Jamming (CJ) scheme for multihop IoT networks, where each transmitted symbol is protected by two hybrid-duplex jamming nodes from randomly located colluding eavesdroppers. Our proposed scheme provides a significant performance enhancement compared to a conventional Single Jamming (SJ) approach, at no additional power cost. In particular, to achieve a secrecy outage probability of 10−1, and assuming the number of hops is 8, the proposed CJ scheme outperforms the SJ case by 3.5 dB of jamming Signal-to-Noise Ratio (SNR). Integral closed-form expressions are derived for the secrecy outage probability and verified via Monte Carlo simulations.