Adaptive Full-Duplex Jamming Receiver for Secure D2D Links in Random Networks
Hui-Ming Wang, Bing-Qing Zhao, Tong-Xing Zheng

TL;DR
This paper introduces an adaptive full-duplex/half-duplex switching receiver for secure device-to-device communication, optimizing secrecy throughput under resource constraints and residual interference, outperforming fixed-mode approaches.
Contribution
It proposes a novel adaptive switching scheme for D2D links that optimizes secrecy performance considering residual self-interference, with low online complexity and practical implementation insights.
Findings
Adaptive switching improves secrecy throughput over fixed modes.
Secrecy throughput is a quasi-concave function of system parameters.
The scheme achieves higher secrecy rates with limited online computation.
Abstract
Device-to-device (D2D) communication raises new transmission secrecy protection challenges, since conventional physical layer security approaches, such as multiple antennas and cooperation techniques, are invalid due to its resource/size constraints. The full-duplex (FD) jamming receiver, which radiates jamming signals to confuse eavesdroppers when receiving the desired signal simultaneously, is a promising candidate. Unlike existing endeavors that assume the FD jamming receiver always improves the secrecy performance compared with the half-duplex (HD) receiver, we show that this assumption highly depends on the instantaneous residual self-interference cancellation level and may be invalid. We propose an adaptive jamming receiver operating in a switched FD/HD mode for a D2D link in random networks. Subject to the secrecy outage probability constraint, we optimize the transceiver…
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Taxonomy
TopicsWireless Communication Security Techniques · Full-Duplex Wireless Communications · Polyomavirus and related diseases
