Improving Physical Layer Secrecy Using Full-Duplex Jamming Receivers

By Gan Zheng, Ioannis Krikidis, Jiangyuan Li, Athina P. Petropulu, Björn E. Ottersten. IEEE Transactions on Signal Processing, 2013

367 citations recorded by the source corpus.

This paper studies secrecy rate optimization in a wireless network with a single-antenna source, a multi-antenna destination and a multi-antenna eavesdropper. This is an unfavorable scenario for secrecy performance as the system is interference-limited. In the literature, assuming that the receiver operates in half duplex (HD) mode, the aforementioned problem has been addressed via use of cooperating nodes who act as jammers to confound the eavesdropper. This paper investigates an alternative solution, which assumes the availability of a full duplex (FD) receiver. In particular, while receiving data, the receiver transmits jamming noise to degrade the eavesdropper channel. The proposed self-protection scheme eliminates the need for external helpers and provides system robustness. For the case in which global channel state information is available, we aim to design the optimal jamming covariance matrix that maximizes the secrecy rate and mitigates loop interference associated with the FD operation. We consider both fixed and optimal linear receiver design at the destination, and show that the optimal jamming covariance matrix is rank-1, and can be found via an efficient 1-D search. For the case in which only statistical information on the eavesdropper channel is available, the optimal power allocation is studied in terms of ergodic and outage secrecy rates. Simulation results verify the analysis and demonstrate substantial performance gain over conventional HD operation at the destination.

Subfields: Artificial Intelligence, Electrical and Electronic Engineering

View Paper: https://www.semanticscholar.org/paper/3e24c25aca6ea112fbdfd950031dcc29defe2ea1

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Citations in the corpus

Classifications and Applications of Physical Layer Security Techniques for Confidentiality: A Comprehensive Survey (2019, methodology): “The technique can be employed by using a single antenna fullduplex receiver or multiple antenna full-duplex receiver [160], where the jamming signal is generated by utilizing a portion of”
Optimal Resource Allocation in Full-Duplex Wireless-Powered Communication Network (2014, background): “, spectral efficiency in relay network [28], multi-user cellular network [29], wireless physical layer security [30], and cognitive radio network [31].”
5G-Advanced Toward 6G: Past, Present, and Future (2023, background): “without being eavesdropped) [211]; • Wireless power transfer, where simultaneous wireless energy transfer (e.”
A Survey of In-Band Full-Duplex Transmission: From the Perspective of PHY and MAC Layers (2015, background): “statistical information on the eavesdropper channel, moreover, they also proposed an optimal power allocation scheme in terms of ergodic and outage secrecy rates in [27] and relay topology”
Principles of Physical Layer Security in Multiuser Wireless Networks: A Survey (2010, background): “Jamming by the destination for the special case of a single-hop system was examined in [169], [170], which is feasible only when the destination has full-duplex capabilities, i.”
Physical-Layer Security of 5G Wireless Networks for IoT: Challenges and Opportunities (2019, methodology): “For PLS solutions, full-duplex is often used to counter to jamming attack under relay scenario [13].”