Physical Layer Security Jamming: Theoretical Limits and Practical Designs in Wireless Networks
Physical Layer Security Jamming: Theoretical Limits and Practical Designs in Wireless Networks
复制标题
物理层安全干扰：无线网络中的理论限制和实际设计
DOI：
10.1109/access.2016.2636239
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发表时间：
2017-01-01
期刊：
影响因子：
3.9
通讯作者：
Karagiannidis, George K.
中科院分区：
文献类型：
--
作者：
Cumanan, Kanapathippillai;Xing, Hong;Karagiannidis, George K.
物理层安全最近被认为是一种有前途的新设计范例，可以在无线网络中提供安全性。除了现有的传统加密方法之外，物理层安全性还利用衰落信道的动态来增强安全的无线链路。在这种方法中，干扰通过产生噪声信号来迷惑潜在的窃听者而发挥着关键作用，并显着提高了合法终端之间安全通信的质量和可靠性。本文介绍了物理层安全干扰方法的理论限制和实际设计。特别是，理论限制探索了基于用户合作的干扰可实现的保密率，同时审查了集中式和基于博弈论的预编码技术的实际实现。此外，还利用新兴的无线能量收集技术来收集传输干扰信号所需的能量。还简要概述了这些方法的未来方向和相关的研究挑战。
Physical layer security has been recently recognized as a promising new design paradigm to provide security in wireless networks. In addition to the existing conventional cryptographic methods, physical layer security exploits the dynamics of fading channels to enhance secured wireless links. In this approach, jamming plays a key role by generating noise signals to confuse the potential eavesdroppers, and significantly improves quality and reliability of secure communications between legitimate terminals. This article presents theoretical limits and practical designs of jamming approaches for physical layer security. In particular, the theoretical limits explore the achievable secrecy rates of user cooperation-based jamming whilst the centralized and game theoretic-based precoding techniques are reviewed for practical implementations. In addition, the emerging wireless energy harvesting techniques are exploited to harvest the required energy to transmit jamming signals. Future directions of these approaches and the associated research challenges are also briefly outlined.