Artificial Noise Injection for Securing Single-Antenna Systems

Abstract

Abstract-We propose a novel artificial noise (AN) injection scheme for wireless systems over quasi-static fading channels, in which a single-antenna transmitter sends confidential messages to a half-duplex receiver in the presence of an eavesdropper. Different from classical AN injection schemes, which rely on a multiantenna transmitter or external helpers, our proposed scheme is applicable to the scenario where the legitimate transceivers are very simple. We analyze the performance of the proposed scheme and optimize the design of the transmission. Our results highlight that perfect secrecy is always achievable by properly designing the AN injection scheme.Index Terms-Physical layer security, artificial noise, secrecy outage probability.

Secure Transmission in mmWave Wiretap Channels: On Sector Guard Zone and Blockages

“…AN is generated so as to be canceled out at the legitimate receiver; thus, only eavesdroppers are affected by AN. Similar methods are presented in [39][40][41]. However, it is beyond the scope of our paper and could be our future research.…”

Energy-Constrained SWIPT Networks: Enhancing Physical Layer Security With FD Self-Jamming

“…The COP is defined as the probability of the connection outage event that the receiving SINR at the legitimate receiver falls below a predefined threshold γ t th , where γ t th = 2 Rt − 1 and R t (bits/s/Hz) is the transmit rate per channel use 8 . Mathematically, the COP can be calculated as [6,51]…”

“…7 We note that the energy consumption required by the transmit/receive circuits at the receiver is negligible in this study [21,38,48]. 8 The design of Rt and the following Rs falls into the construction of the wiretap coding, which has been elaborated abundantly in the literatures [4,6,50], thus is omitted in this paper.…”

“…The basic idea of Wyner is to secure the proposed wiretap channel model by taking advantage of the difference between the physical channels of authorized user and malicious eavesdropper. Since then, enormous researches based on Wyner's notion have been carried out in various networks, like cellular networks [5], cognitive radio (CR) networks [6], wireless sensor networks (WSNs) [7], and a variety of scenarios with single-antenna [8], multi-antenna [9,10], multiple-input-single-output (MISO) [11] and multiple-inputmultiple-output (MIMO) [12,13], etc.…”

Robustness of the Tomlinson-Harashima Precoder in Physical-layer Security to Attacks with Non-linear CMA

“…Nevertheless, little attention has been given to PLS in SC-SA systems, and very few techniques have been studied and developed specifically for them. For instance, the work in [7] proposes a technique to employ artificial noise for SC-SA systems. Also, the work in [8] considers a type of precoding that only pre-distorts the phase of the signal to be transmitted.…”