Secure Transmission in Cognitive Wiretap Networks with Full-Duplex Receivers

Shang, Zhihui; Zhang, Tao; Cai, Yueming; Yang, Weiwei; Wu, Hao; Zhang, Yu; Tao, Liwei

doi:10.3390/app10051840

Cited by 6 publications

(8 citation statements)

References 41 publications

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“…The secrecy performance for a new collaboration interference transmission scheme (TAS/MRC/ZFB) for overlay FD operative was analyzed in [20]. In [21], the authors analyzed the secrecy performance for MRC-ZFB/MRT-SC-ZFB scheme with FD receiver underlay CRNs of perfect channel state information (CSI) over Rayleigh fading channels. The effects of perfect CSI on the system performance have been investigated in collaborative zero-forcing beamforming [8], [14][15][16], cooperative relays network [17][18][19], and the FD technique [20][21].…”

Section: Introductionmentioning

confidence: 99%

Secure transmission in cognitive radio networks using full-duplex technique with outdated CSI

Shang

Zhang

et al. 2023

China Commun.

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In this paper, we investigate the effects of the outdated channel state information (CSI) on the secrecy performance of an underlay spectrum sharing cognitive radio networks (CRNs) with full-duplex (FD) receivers. Legitimate destination node (Bob) acts as a FD node, transmitting interference signals to a passive eavesdropping node (Eve) while receiving signals. To exploit the benefits of collaborative zero-forcing beamforming and FD technologies, transmit antenna selection-maximal-ratio combining-zero forcing beamforming/maximal-ratio transmission-selection combining-zero forcing beamforming (TAS-MRC-ZFB/MRT-SC-ZFB) scheme is considered at the secondary user transmission link with the outdated CSI and collaborative ZFB is adopted at FD destination node, which tries to improve the transmission efficiency of our considered CRNs. Specifically, in order to evaluate the proposed scheme, the derivation of analytical expression in exact and the high asymptotic closed-form expressions of secrecy outage probability (SOP) are provided of the considered network with and without feedback delay of the CSI. Furthermore, the impact of delay on the second user transmission and interference links of the primary user (PU) node is investigated. The results reveal that outdated CSI of secondary user transmission and collaborative ZFB channels deteriorates the SOP, and the outdated CSI between PU and secondary user (SU) will affect the power margin factors for the secondary transmitter. Furthermore, we also study the effects of different system parameters on the secrecy diversity order and secrecy array gain. The proposed scheme is compared with the existing TAS-MRC/TAS-MRC scheme to verify the improvement of system performance. Finally, Monte Carlo simulations verify the correctness of our theoretical analysis.

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Section: Introductionmentioning

confidence: 99%

Secure transmission in cognitive radio networks using full-duplex technique with outdated CSI

Shang

Zhang

et al. 2023

China Commun.

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“…Therefore, the self-jamming approach has been widely studied and extended in numerous schemes to enhance the PLS, i.e., the FD transceiver can simultaneously receive the intended message and broadcast the AN to degrade the eavesdropper channel [ 15 , 16 , 17 ]. The AN technique is also used for secure transmission in cognitive wiretap networks with FD receivers [ 18 ] or FD relay systems [ 19 ]. Usually, the PLS mechanism related to the self-jamming and AN has been studied assuming that the eavesdropper cannot estimate the wiretap channel or jamming channel based on the known training pilots and transmitted power [ 20 ].…”

Section: Introductionmentioning

confidence: 99%

Secrecy Coding Analysis of Short-Packet Full-Duplex Transmissions with Joint Iterative Channel Estimation and Decoding Processes

Vuong

Gautier

Fiche

et al. 2022

Sensors

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This paper studies the secrecy coding analysis achieved by the self-jamming technique in the presence of an eavesdropper by considering a short-packet Full-Duplex (FD) transmission developed based on iterative blind or semi-blind channel estimation and advanced decoding algorithms. Indeed, the legitimate receiver and eavesdropper can simultaneously receive the intended signal from the transmitter and broadcast a self-jamming or jamming signal to the others. Unlike other conventional techniques without feedback, the blind or semi-blind algorithm applied at the legitimate receiver can simultaneously estimate, firstly, the Self-Interference (SI) channel to cancel the SI component and, secondly, estimate the propagation channel, then decode the intended messages by using 5G Quasi-Cyclic Low-Density Parity Check (QC-LDPC) codes. Taking into account the passive eavesdropper case, the blind channel estimation with a feedback scheme is applied, where the temporary estimation of the intended channel and the decoded message are fed back to improve both the channel estimation and the decoding processes. Only the blind algorithm needs to be implemented in the case of a passive eavesdropper because it achieves sufficient performances and does not require adding pilot symbols as the semi-blind algorithm. In the case of an active eavesdropper, based on its robustness in the low region of the Signal-to-Noise Ratio (SNR), the semi-blind algorithm is considered by trading four pilot symbols and only requiring the feedback for channel estimation processes in order to overcome the increase in noise in the legitimate receiver. The results show that the blind or semi-blind algorithms outperform the conventional algorithm in terms of Mean Square Error (MSE), Bit Error Rate (BER) and security gap (Sg). In addition, it has been shown that the blind or semi-blind algorithms are less sensitive to high SI and self-jamming interference power levels imposed by secured FD transmission than the conventional algorithms without feedback.

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“…Recently, to improve the transmission reliability, CWNs with full-duplex (FD) operation have been widely studied. [22][23][24][25][26][27] The FD sensor node can receive information from other nodes while transmitting artificial jamming signals to prevent illegal eavesdropping, which can improve the SE by simultaneously learning the radio environments and delivering data traffic of the system. The author explored how much selfinterference should be suppressed to make FD-CWNs more advantageous than HD-CWNs.…”

Section: Introductionmentioning

confidence: 99%

“…24 The authors designed a joint FD-aware channel assignment and route selection protocol in FD-based CWNs under time-varying channel conditions and transmission rates, which maximizes the D2D network throughput. 25 Different schemes at the FD relay were proposed, 26,27 in which the secrecy outage probability (SOP) between the source and the destination was obtained to maximize the achievable secrecy performance of SU transmission link.…”

Section: Introductionmentioning

confidence: 99%

Physical layer security in cognitive NOMA sensor networks with full-duplex technique

Shang

Zhang

Tao

et al. 2021

International Journal of Distributed Sensor Networks

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This article studies the physical layer security in a downlink full-duplex cognitive non-orthogonal multiple access sensor networks (FD-C-NOMA). Compared with the existing works, this article proposes a FD-C-NOMA transmission scheme with a primary user (PU) and secondary user (SU) sensor nodes in the presence of an eavesdropper. The zero-forcing beamforming design problems of FD operation are investigated subject to the practical secrecy rate and the quality of services of PU. To characterize the security reliability trade-off of the FD-C-NOMA scheme, we first derive the closed-form expressions of connection outage probability (COP), the secrecy outage probability (SOP), and effective secrecy throughput (EST) of each SU in the NOMA networks. Then the impacts of the system parameters on the COP, SOP, and EST are investigated to evaluate the security and reliability in the FD-C-NOMA networks. Furthermore, in order to further verify the security and reliability of our considered network, an OMA scheme of FD operation is provided in the simulation for the purpose of comparison. Results demonstrate that the NOMA-based cognitive sensor networks of FD operation outperforms the OMA system in terms of EST. Finally, simulations are performed to validate the accuracy of our analysis results of the proposed scheme.

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Secure Transmission in Cognitive Wiretap Networks with Full-Duplex Receivers

Cited by 6 publications

References 41 publications

Secure transmission in cognitive radio networks using full-duplex technique with outdated CSI

Secure transmission in cognitive radio networks using full-duplex technique with outdated CSI

Secrecy Coding Analysis of Short-Packet Full-Duplex Transmissions with Joint Iterative Channel Estimation and Decoding Processes

Physical layer security in cognitive NOMA sensor networks with full-duplex technique

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