Impact of Outdated CSI on the Secure Communication in Untrusted In-Band Full-Duplex Relay Networks

Lim, Jin-Taek; Kim, Tae-Hoon; Bang, Inkyu

doi:10.1109/access.2022.3151792

Cited by 10 publications

(8 citation statements)

References 27 publications

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“…Their results showed that the RIS-FD model improves the spectrum efficiency and that it also significantly weakens eavesdroppers' capability to detect legitimate signals by directing multiple superimposed signals toward the eavesdropper. The authors in [84] proposed a secure relaying protocol to protect against untrusted FD relay nodes based on PLS. In doing so, they assumed that Bob generates AN signals to prevent the untrusted relay from decrypting Alice's data.…”

Section: Min Sopmentioning

confidence: 99%

Interplay between Physical Layer Security and Blockchain Technology for 5G and Beyond: A Comprehensive Survey

Ghourab¹,

Jaafar²,

Bariah³

et al. 2023

Preprint

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Fifth-generation and beyond (5G and xG) wireless networks are envisioned to meet the requirements of various vertical applications that require higher traffic throughput, ultra-massive connectivity, extremely low latency, and high quality of service. Disruptive technologies, such as massive multiple-input multiple-output, millimeter wave, and multiple access are being deployed to meet these requirements. However, the deployment of these technologies poses several challenges, including the lack of network transparency, management decentralization, and reliability. In addition, the heterogeneity of these networks raises security concerns, particularly, confidentiality, privacy, and trustworthiness. Typically, networks rely on encryption techniques at higher layers to ensure security and privacy. However, due to the emergence of novel computing paradigms, such as quantum computing, traditional security approaches are no longer sufficient to protect over-the-air communications. Therefore, 5G/xG networks must consider smarter and more efficient security techniques to operate seamlessly and efficiently. Within this context, physical layer security (PLS) and blockchain represent promising solutions to complement existing methods. By exploiting the characteristics of wireless links, PLS can enhance the security of wireless communications, while blockchain can guarantee the decentralization, integrity, and trustworthiness of networks. Motivated by these technological advancements, this paper provides an in-depth review of the existing literature on PLS and blockchain. Then, for the first time, we present a framework for the integration of PLS with blockchain in 5G/xG systems. We begin by providing a thorough discussion about the potential of PLS and blockchain for 5G/xG systems. Next, we present our vision of a cross-layer architecture that leverages both PLS and blockchain in 5G/xG networks. Finally, we identify related challenges and open issues and shed light on future research directions.

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Section: Min Sopmentioning

confidence: 99%

Interplay between Physical Layer Security and Blockchain Technology for 5G and Beyond: A Comprehensive Survey

Ghourab¹,

Jaafar²,

Bariah³

et al. 2023

Preprint

View full text Add to dashboard Cite

show abstract

“…where I r ½i can be modeled as a Gaussian random variable with mean zero and variance l 2 r P [18,22]. l r corresponds to the self-interference cancellation capability at the relay.…”

Section: System Modelmentioning

confidence: 99%

“…Based on the source jamming scheme, [17] derived the secrecy outage probability for untrusted fullduplex relay networks. The impact of outdated channel state information (CSI) on the ergodic secrecy rate of untrusted full-duplex relay networks was investigated in [18]. The authors of [19] proposed an artificial noise-aided secure transmission scheme to confuse the untrusted full-duplex relay and external eavesdroppers.…”

Section: Introductionmentioning

confidence: 99%

“…Compared with [18][19][20], we consider the outage performance of the untrusted full-duplex relay network, where the secrecy outage probability (SOP) is used to evaluate the security performance and the connection outage probability (COP) is used to characterize the reliability performance. The main contributions of this paper are summarized as follows:…”

Section: Introductionmentioning

confidence: 99%

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Security-Reliability Tradeoff Analysis of Untrusted Full-Duplex Relay Networks

Zhang

Chen

et al. 2022

Wireless Communications and Mobile Computing

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In this work, we investigate the physical layer security problem of wireless cooperative network, where the communication from a source to a destination is assisted by an untrusted full-duplex amplify-and-forward (AF) relay. In order to realize a positive secrecy rate, cooperative jamming is exploited at the destination. The secrecy outage probability (SOP), connection outage probability (COP), and effective secrecy throughput (EST) are, respectively, derived in closed-form expressions for the fixed gain relaying (FGR) scheme and the variable gain relaying (VGR) scheme. Subsequently, we conduct an asymptotic analysis for both the relaying schemes in the high signal-to-noise ratio (SNR) region to offer valuable insights into practical design. Theory and simulation results demonstrate that the self-interference caused by full-duplex transmission is harmful for the reliability performance, while it is beneficial to the security performance. Moreover, the EST of the considered system increases as the self-interference level decreases, which implies that the self-interference deteriorates an overall performance in terms of the security-reliability tradeoff.

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“…Therefore, the integration of PLS and cryptographic techniques with existing upper layers is a promising approach for future secure wireless networks [13]. In this context, the application of PLS to essential technologies, such as device-to-device communication [14,15] and full duplex [16,17], has been studied.…”

Section: Introductionmentioning

confidence: 99%

High-Quality and Low-Complexity Polar-Coded Radio-Wave Encrypted Modulation Utilizing Multipurpose Frozen Bits

Asano

Abe

Kato

et al. 2023

IEICE Trans. Commun.

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In recent years, physical layer security (PLS), which utilizes the inherent randomness of wireless signals to perform encryption at the physical layer, has attracted attention. We propose chaos modulation as a PLS technique. In addition, a method for encryption using a special encoder of polar codes has been proposed (PLS-polar), in which PLS can be easily achieved by encrypting the frozen bits of a polar code. Previously, we proposed a chaos-modulated polar code transmission method that can achieve high-quality and improved-security transmission using frozen bit encryption in polar codes. However, in principle, chaos modulation requires maximum likelihood sequence estimation (MLSE) for demodulation, and a large number of candidates for MLSE causes characteristic degradation in the low signal-to-noise ratio region in chaos polar transmission. To address this problem, in this study, we propose a versatile frozen bit method for polar codes, in which the frozen bits are also used to reduce the number of MLSE candidates for chaos demodulation. The numerical results show that the proposed method shows a performance improvement by 1.7 dB at a block error rate of 10 -3 with a code length of 512 and a code rate of 0.25 compared with that of conventional methods. We also show that the complexity of demodulation can be reduced to 1/16 of that of the conventional method without degrading computational security. Furthermore, we clarified the effective region of the proposed method when the code length and code rate were varied.

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Impact of Outdated CSI on the Secure Communication in Untrusted In-Band Full-Duplex Relay Networks

Cited by 10 publications

References 27 publications

Interplay between Physical Layer Security and Blockchain Technology for 5G and Beyond: A Comprehensive Survey

Interplay between Physical Layer Security and Blockchain Technology for 5G and Beyond: A Comprehensive Survey

Security-Reliability Tradeoff Analysis of Untrusted Full-Duplex Relay Networks

High-Quality and Low-Complexity Polar-Coded Radio-Wave Encrypted Modulation Utilizing Multipurpose Frozen Bits

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