Journal ArticleDOI
Channel-Aware Artificial Intersymbol Interference for Enhancing Physical Layer Security
Sasi Vinay Pechetti,Ranjan Bose +1 more
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TLDR
A novel scheme for enhancing the security of the information transfer between resource-limited devices and derives closed-form expressions for upper bound and lower bound on the secrecy outage probability (SOP) for the independent case.Abstract:
In this letter, we propose a novel scheme for enhancing the security of the information transfer between resource-limited devices. We select a pulse from a set of $T$ -orthogonal pulses for shaping the data at source ( $S$ ) based on legitimate channel state information (CSI). A destination ( $D$ ) having the CSI, properly samples the output of the matched filter. An eavesdropper ( $E$ ) having no knowledge of the legitimate CSI, may or may not sample correctly, thereby, inducing artificial intersymbol interference (ISI) at the $E$ . We also consider a case where the $S-E$ link is correlated with the $S-D$ link (when $E$ and $D$ are closely located). We derive optimal thresholds at $E$ , $S$ for switching the selection of a pulse in maximizing and minimizing the achievable rate at $E$ , respectively. We derive closed-form expressions for upper bound and lower bound on the secrecy outage probability (SOP) for the independent case. Simulation results show that unlike at $D$ , the symbol error rate (SER) at $E$ saturates at a high SER due to the induced ISI.read more
Citations
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Journal ArticleDOI
Low-Complexity Joint Phase Adjustment and Receive Beamforming for Directional Modulation Networks via IRS
TL;DR: Simulation results show that, compared with the no-IRSassisted scheme and no-PSM optimization scheme, the proposed IRS-assisted Max-RPS-GAO method and Max- RPS-ZF method can significantly improve the secrecy rate (SR) performance of the DM system.
Journal ArticleDOI
Low-Complexity Joint Phase Adjustment and Receive Beamforming for Directional Modulation Networks via IRS
TL;DR: In this paper , two alternately optimizing schemes of jointly designing receive beamforming (RBF) vectors and IRS phase shift matrix (PSM) are proposed: Max-RPS using general alternating optimization (Max-RS-GAO) algorithm and Max-RS using zero-forcing (MaxRS-ZF) algorithm.
Journal ArticleDOI
Performance Improvement of Radio-Wave Encrypted MIMO Communications Using Average LLR Clipping
TL;DR: A new LLR clipping method that can be optimally applied to chaos modulation by limiting the confidence level of LLR and suppressing error propagation and achieving the same performance as the one using the exact LLR, which requires compli-cated calculations.
Book ChapterDOI
Network Security and Internet of Things
TL;DR: The authors reviewed the essential and most important concepts of information security, IoT, and explained these topics in an easy-to-understand way to familiarize undergraduates and postgraduate students and IoT information security practitioners about it.
Journal ArticleDOI
Secure Rate Splitting Multiple Access: How Much of the Split Signal to Reveal?
TL;DR: In this paper , the secrecy performance of RSMA in multi-user multiple-input-single-output (MU-MISO) systems is investigated, where secrecy is defined by the ability of any user to decode the signal intended for user $k$ in the system.
References
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Book
Digital Communication over Fading Channels
TL;DR: The book gives many numerical illustrations expressed in large collections of system performance curves, allowing the researchers or system designers to perform trade-off studies of the average bit error rate and symbol error rate.
Book
Digital Communication over Fading Channels: A Unified Approach to Performance Analysis
TL;DR: In this paper, a diversity technique for communication over fading channels in the presence of interference is proposed. But the technique is not suitable for all channels and it is not applicable to all channels.
Journal ArticleDOI
Principles of Physical Layer Security in Multiuser Wireless Networks: A Survey
TL;DR: A comprehensive review of the domain of physical layer security in multiuser wireless networks, with an overview of the foundations dating back to the pioneering work of Shannon and Wyner on information-theoretic security and observations on potential research directions in this area.
Journal ArticleDOI
Physical-Layer Security in the Internet of Things: Sensing and Communication Confidentiality Under Resource Constraints
TL;DR: An overview of low-complexity physical-layer security schemes that are suitable for the IoT is presented, pinpointing the most energy-efficient and low- complexity security techniques that are best suited for IoT sensing applications.
Journal ArticleDOI
Bounds on Secrecy Capacity Over Correlated Ergodic Fading Channels at High SNR
TL;DR: It is concluded that the excessively large signal power does not help to improve the secrecy capacity and the loss due to the correlation could be significant especially when the ratio of the main to eavesdropper channel gains is low.