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Springer eBooks

Physical Layer Security for Future Wireless Communication Systems

K. Gunaseelan, R. Dhanusuya, A. R. Abdul Rajak, Ashutosh Mishra

Published Jan 1, 2025• 0 citations
Publisher
DOI
10.1007/978-3-031-81213-2_8

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The broadcast nature of wireless communication systems makes wireless transmission extremely susceptible to eavesdropping and even malicious interference. Physical layer security technology can effectively protect the private information sent by the transmitter from being listened to by illegal eavesdroppers, thus ensuring the privacy and security of communication between the transmitter and legitimate users. Thus, the main design goal of physical layer security is to increase the performance difference between the link of the legitimate receiver and that of the eavesdropper using well-designed transmission schemes. The development of mobile communication presents new challenges to physical layer security research. This paper provides a survey of the physical layer security research on various promising mobile technologies from secure key generation and keyless techniques, including secure key generation, directional modulation (DM), spatial modulation (SM), covert communication, and intelligent reflecting surface (IRS)-aided communication. Finally, the future topics and the unresolved technical challenges are presented in physical layer security for mobile communications.

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Security has emerged as one of the critical requirements of future wireless networks. Unlike traditional cryptography-based security, physical layer security (PLS) tends to exploit various features of the random wireless channel to secure not only the information being communicated but the whole communication process from any type of attack. Due to the limited capability of the legacy wireless networks, only a few channel features could be effectively exploited for PLS. Future wireless networks are envisioned to feature advanced transceiver technologies, signal processing techniques, channel control, and sensing capabilities which will allow them to easily access and extract additional channel features that can be readily exploited for PLS. The novel use cases to be accommodated in future networks are also found to experience some peculiar channel characteristics which enrich the list of channel features that can be exploited for PLS. This article, thus, tends to highlight the opportunities and potential challenges of these new channel features from the PLS perspective. In the course of the article, the assessment of important qualities while selecting a certain channel feature for the PLS application is discussed. The importance of the channel control concept and sensing technologies for PLS is highlighted. Finally, the article discusses the challenges and vulnerabilities of the channel-based PLS concept from which future research directions are derived.

IEEE Wireless Communications•Nov 20, 2023•31 citations
The broadcast nature of wireless communication systems makes wireless transmission extremely susceptible to eavesdropping and even malicious interference. Physical layer security technology can effectively protect the private information sent by the transmitter from being listened to by illegal eavesdroppers, thus ensuring the privacy and security of communication between the transmitter and legitimate users. Thus, the main design goal of physical layer security is to increase the performance difference between the link of the legitimate receiver and that of the eavesdropper using well-designed transmission schemes. The development of mobile communication presents new challenges to physical layer security research. This paper provides a survey of the physical layer security research on various promising mobile technologies from secure key generation and keyless techniques, including secure key generation, directional modulation (DM), spatial modulation (SM), covert communication, and intelligent reflecting surface (IRS)-aided communication. Finally, the future topics and the unresolved technical challenges are presented in physical layer security for mobile communications.
Due to the broadcast nature of wireless radio propagation channels, 5G wireless networks face serious security threats. Security mechanisms that leverage physical layer characteristics have been considered as potential complements to enhance 5G wireless network security. This article proposes physical layer security enhancements to defend against security attacks from the three most significant aspects: wireless secure communication, physical layer assisted authentication and secret key distribution. By integrating physical layer security with novel techniques and application scenarios in 5G communication, we elaborate several promising strategies, including massive MIMO beamforming with security code communication, self-adaptive mobile and cooperative secure communication with dynamic channel prediction, physical layer assisted authentication, malicious node detection and key generation of massive MIMO millimeter wave system. Research opportunities and future challenges are further discussed.
Security has emerged as one of the critical requirements of future wireless networks. Unlike traditional cryptography-based security, physical layer security (PLS) tends to exploit various features of the random wireless channel to secure not only the information being communicated but the whole communication process from any type of attack. Due to the limited capability of the legacy wireless networks, only a few channel features could be effectively exploited for PLS. Future wireless networks are envisioned to feature advanced transceiver technologies, signal processing techniques, channel control, and sensing capabilities which will allow them to easily access and extract additional channel features that can be readily exploited for PLS. The novel use cases to be accommodated in future networks are also found to experience some peculiar channel characteristics which enrich the list of channel features that can be exploited for PLS. This article, thus, tends to highlight the opportunities and potential challenges of these new channel features from the PLS perspective. In the course of the article, the assessment of important qualities while selecting a certain channel feature for the PLS application is discussed. The importance of the channel control concept and sensing technologies for PLS is highlighted. Finally, the article discusses the challenges and vulnerabilities of the channel-based PLS concept from which future research directions are derived.