A Wire-Line Secure Communication System Based on CCFD Self-Interference Cancellation

This paper presents a design scheme of wire-line telephone system using self-interference (SI) cancellation technology in co-frequency co-time full-duplex (CCFD) system to realize absolute secure communication at the physical layer. This scheme can hide the target signal by skillfully releasing the high-power artificial noise to the whole link at the receiving node, and then make use of the receiver’s knowledge of the SI signal to achieve high dB SI cancellation with the help of analog domain SI cancellation technology in CCFD domain, so that the signal-to-noise ratio (SNR) received by the eavesdropper at any position of the link is far lower than that of the legitimate receiver, so as to realize the absolutely secure communication in the sense of Wyner principle. This paper not only puts forward the specific design scheme of absolutely secure communication telephone, but also analyzes the calculation of security capacity under different eavesdropping positions, different SI cancellation capability and different system parameters according to Shannon theory.

Download Full-text

Performance Analysis of Full-Duplex Amplify-and-Forward Relay System with Hardware Impairments and Imperfect Self-Interference Cancellation

Wireless Communications and Mobile Computing ◽

10.1155/2019/4946298 ◽

2019 ◽

Vol 2019 ◽

pp. 1-10 ◽

Cited By ~ 18

Author(s):

Ba Cao Nguyen ◽

Xuan Nam Tran

Keyword(s):

Interference Cancellation ◽

Signal To Noise Ratio ◽

Relay Node ◽

Analytical Framework ◽

Full Duplex ◽

High Signal ◽

Amplify And Forward ◽

Relay System ◽

Hardware Impairments ◽

The Impact

In this paper, we analyze the performance of a full-duplex (FD) amplify-and-forward (AF) relay system with imperfect hardware. Besides the aggregate hardware impairments of the imperfect transceiver, we also consider the impact of residual self-interference (RSI) due to imperfect cancellation at the FD relay node. An analytical framework for analyzing the system performance including exact outage probability (OP), asymptotic OP, and approximate symbol error probability (SEP) is developed. In order to tackle these impacts, we propose an optimal power allocation scheme which can improve the outage performance of the FD relay node, especially at the high signal-to-noise ratio (SNR) regime. Numerical results are presented for various evaluation scenarios and verified using the Monte Carlo simulations.

Download Full-text

Artificial-noise-aided secure communication with full-duplex active eavesdropper

2017 IEEE 28th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC) ◽

10.1109/pimrc.2017.8292673 ◽

2017 ◽

Cited By ~ 1

Author(s):

Zunning Liu ◽

Na Li ◽

Xiaofeng Tao ◽

Si Li ◽

Jin Xu ◽

...

Keyword(s):

Secure Communication ◽

Full Duplex ◽

Artificial Noise

Download Full-text

Analysis of SWIPT-Enabled Relay Networks with Full-Duplex Destination-Aided Jamming

Security and Communication Networks ◽

10.1155/2021/6193012 ◽

2021 ◽

Vol 2021 ◽

pp. 1-18

Author(s):

Jinglan Ou ◽

Hangchuan Shi ◽

Liubin Wang ◽

Rui Ma ◽

Haowei Wu

Keyword(s):

Outage Probability ◽

Closed Form ◽

Signal To Noise Ratio ◽

Full Duplex ◽

Relay Network ◽

Closed Form Expression ◽

Artificial Noise ◽

Secrecy Outage Probability ◽

Power Splitting ◽

Secrecy Outage

Simultaneous wireless information and power transfer (SWIPT) is a major breakthrough in the field of low-power wireless information transmissions. In this paper, the secrecy performance of the SWIPT-enabled relay network with full-duplex destination-aided jamming is assessed, where both the power-splitting (PS) and time-switching (TS) schemes at the relay are considered with the linear and nonlinear energy harvesting models. The relay harvests energy from the confidential signal and artificial noise sent by the source and destination, respectively, and forwards the amplified signal to the destination, in the presence of an eavesdropper. The analytical closed-form expressions of the connection outage probability (COP), secrecy outage probability (SOP), and transmission outage probability (TOP) for PS- and TS-based schemes are derived, and the closed-form expression of the lower bound of ergodic secrecy capacity (ESC) is calculated. The asymptotic-form expressions of the COP, SOP, TOP, and ESC are further analyzed to capture the valuable information in the high SNR regime. Numerical results verify the correctness of analytical results, reveal the effects of the PS/TS ratio, and transmit the signal-to-noise ratio on secrecy performance.

Download Full-text

Improving Physical Layer Security via TAS and Full-Duplex Artificial-Noise-Added Receiver

Frequenz ◽

10.1515/freq-2014-0235 ◽

2015 ◽

Vol 69 (7-8) ◽

Author(s):

Yajun Zhang ◽

Tao Liang ◽

Aiwei Sun

Keyword(s):

Outage Probability ◽

Fading Channels ◽

Antenna Selection ◽

Signal To Noise Ratio ◽

Full Duplex ◽

Artificial Noise ◽

Secrecy Outage Probability ◽

Transmit Antenna Selection ◽

Single Antenna ◽

Secrecy Outage

AbstractIn this paper, we propose a hybrid scheme called transmit antenna selection and receiver’s artificial noise (TAS–rAN) for security enhancement in multiple-input single-output (MISO) wiretap channels. In this scheme, by using TAS protocol, the transmitter selects a single antenna that maximizes the instantaneous signal-to-noise ratio (SNR) at the full-duplex receiver. While the transmitter uses this antenna to transmit secrecy data, the full-duplex receiver would send artificial noise (AN) to confuse the potential eavesdropper. For the proposed protocol, we consider Rayleigh fading channels with different parameters for the main channel and the eavesdropper’s channel, and derive new closed-form expressions for the exact secrecy outage probability and the asymptotic secrecy outage probability. We demonstrate that the proposed TAS–

Download Full-text

On Self-Interference Cancellation and Non-Idealities Suppression in Full-Duplex Radio Transceivers

Mathematics ◽

10.3390/math9121434 ◽

2021 ◽

Vol 9 (12) ◽

pp. 1434

Author(s):

Areeba Ayesha ◽

MuhibUr Rahman ◽

Amir Haider ◽

Shabbir Majeed Chaudhry

Keyword(s):

Interference Cancellation ◽

Full Duplex ◽

Budget Analysis ◽

Rf Impairments ◽

Non Linear ◽

Link Budget ◽

Transmitted Signal ◽

Radio Transceiver ◽

With Memory ◽

Analog Domain

One of the major impediments in the design and operation of a full-duplex radio transceiver is the presence of self-interference (SI), that is, the transceiver’s transmitted signal, 60–100 dB stronger than the desired signal of interest. To reduce the SI signal below the receiver’s sensitivity before coupling it to the receiver, radio frequency (RF)/analog domain cancellation is carried out. Even after SI cancellation to the required level in the analog domain, the residual SI signal still exits and lowers the transceiver’s performance. For residual SI cancellation, a digital domain cancellation is carried out. RF impairments are the major obstacle in the residual SI cancellation path in the digital domain. Linearization of RF impairments such as IQ mixer imbalance in the transmitter and receiver chain, non-linear PA with memory, and non-linear LNA are also carried out. Performance evaluation of the proposed techniques is carried out based on SINR, the power of different SI signal components, PSD, output to input relationship, SNR vs. BER, spectrum analyzer, constellation diagram, and link budget analysis. The proposed techniques provide attractive RF/analog SI cancellation of up to 80–90 dB, digital residual SI cancellation of up to 35 to 40 dB, total SI cancellation of up to 110 to 130 dB, and an SINR improvement of up to 50 dB.

Download Full-text

Physical layer security transmission scheme based on artificial noise in cooperative SWIPT NOMA system

EURASIP Journal on Wireless Communications and Networking ◽

10.1186/s13638-021-02020-3 ◽

2021 ◽

Vol 2021 (1) ◽

Author(s):

Yong Jin ◽

Zhentao Hu ◽

Dongdong Xie ◽

Guodong Wu ◽

Lin Zhou

Keyword(s):

Interference Cancellation ◽

Physical Layer Security ◽

High Energy ◽

Physical Layer ◽

Base Station ◽

Artificial Noise ◽

Transmitted Power ◽

Transmission Scheme ◽

Convex Problem ◽

Security Problem

AbstractAiming at high energy consumption and information security problem in the simultaneous wireless information and power transfer (SWIPT) multi-user wiretap network, we propose a user-aided cooperative non-orthogonal multiple access (NOMA) physical layer security transmission scheme to minimize base station (BS) transmitted power in this paper. In this scheme, the user near from BS is adopted as a friendly relay to improve performance of user far from BS. An energy harvesting (EH) technology-based SWIPT is employed at the near user to collect energy which can be used at cooperative stage. Since eavesdropper in the downlink of NOMA system may use successive interference cancellation (SIC) technology to obtain the secrecy information of receiver, to tackle this problem, artificial noise (AN) is used at the BS to enhance security performance of secrecy information. Moreover, semidefinite relaxation (SDR) method and successive convex approximation (SCA) technique are combined to solve the above non-convex problem. Simulation results show that in comparison with other methods, our method can effectively reduce the transmitted power of the BS on the constraints of a certain level of the secrecy rates of two users.

Download Full-text