Achieving Covertness and Security in Broadcast Channels With Finite Blocklength

Wang, Chao; Li, Zan; Zhang, Haibin; Ng, Derrick Wing Kwan; Al-Dhahir, Naofal

doi:10.1109/twc.2022.3160051

Cited by 34 publications

(21 citation statements)

References 46 publications

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“…Super Eve: However, if some of those receivers are malicious, e.g., as internal attackers, they may collude with each others. Consider a worst case, where each Eve is able to share their received signal perfectly so that maximum-ratio combining (MRC) can be applied [19], [32]. Then, all N collusive Eves with channel gain of z e,n can be considered as a combined super Eve with channel gain z e,super = N n=1 z e,n .…”

Section: Special Cases: Multiple Evesmentioning

confidence: 99%

“…Adopting this bound, various performance metrics are proposed. For example, the authors in [19] employ the artificial noise technique to achieve both covertness and security. The secrecy transmission rate is applied directly as the metric to be maximized and an analytical approach to obtain the global optimum and an efficient approach to obtain the sub-optimum are proposed.…”

Section: Introductionmentioning

confidence: 99%

“…In particular, unlike human-centric communications, the transmission with a fixed amount of information only occurs sporadically in machine-type communications. Therefore, the average secrecy rate [19] is not suitable to characterize the system performance in those scenarios. On the other hand, the outage probability with fixed transmission error probability [23] and the effective throughput with fixed information leakage probability [20] may not fully reflect the dynamic between reliability and security in FBL regime.…”

Section: Introductionmentioning

confidence: 99%

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Trade Reliability for Security: Leakage-Failure Probability Minimization for Machine-Type Communications in URLLC

Zhu¹,

Yuan²,

Hu³

et al. 2023

Preprint

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How to provide information security while fulfilling ultra reliability and low-latency requirements is one of the major concerns for enabling the next generation of ultra-reliable and low-latency communications service (xURLLC), specially in machine-type communications. In this work, we investigate the reliability-security tradeoff via defining the leakage-failure probability, which is a metric that jointly characterizes both reliability and security performances for short-packet transmissions. We discover that the system performance can be enhanced by counter-intuitively allocating fewer resources for the transmission with finite blocklength (FBL) codes. In order to solve the corresponding optimization problem for the joint resource allocation, we propose an optimization framework, that leverages lower-bounded approximations for the decoding error probability in the FBL regime. We characterize the convexity of the reformulated problem and establish an efficient iterative searching method, the convergence of which is guaranteed. To show the extendability of the framework, we further discuss the blocklength allocation schemes with practical requirements of reliable-secure performance, as well as the transmissions with the statistical channel state information (CSI). Numerical results verify the accuracy of the proposed approach and demonstrate the reliability-security tradeoff under various setups.

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Section: Special Cases: Multiple Evesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Trade Reliability for Security: Leakage-Failure Probability Minimization for Machine-Type Communications in URLLC

Zhu¹,

Yuan²,

Hu³

et al. 2023

Preprint

View full text Add to dashboard Cite

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“…For the security of information transmission in uRLLC, many works have been studied to satisfy its strict requirements 11,28,32–34 . For example, Wang et al first designed practicable performance metrics to measure PLS and investigated the relationship among reliability, latency, and security 28 .…”

Section: Related Workmentioning

confidence: 99%

“…For the security of information transmission in uRLLC, many works have been studied to satisfy its strict requirements. 11,28,[32][33][34] For example, Wang et al first designed practicable performance metrics to measure PLS and investigated the relationship among reliability, latency, and security. 28 Then Yu et al designed two new performance metrics to measure PLS and discussed the role of UAV and cooperative communications in uRLLC scenarios.…”

Section: Related Workmentioning

confidence: 99%

The impact of mobility on physical layer security in 5G uRLLC

Zheng

et al. 2022

Int J of Intelligent Sys

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Due to the openness nature of wireless medium, security issues have increasingly become a bottleneck that restricts the development of ultra‐reliable and low‐latency communications (uRLLCs). Physical layer security (PLS) technique has been proposed to fulfill the security and confidentiality of information transmission by exploiting the characteristics of the wireless channel, which caters to the features of uRLLC. Furthermore, PLS also shows great practicality in artificial intelligence field, especially in wireless intelligent networks. However, the previous works on the study of PLS ignored the significance of mobility and limited packet length constraint required by uRLLC for satisfying low latency, in this paper, we investigate the impact of mobility on the secrecy performance of uRLLC by using the Random WayPoint (RWP) model and the Random Direction (RD) model. Specifically, with the tools of stochastic geometry, to observe the impact of key system parameters on the secrecy performance, we establish the closed‐form expression of connection outage probability, secrecy outage probability, and decoding error probability‐based secrecy transmission capacity (DEP‐STC). Furthermore, we derive the condition that achieves a positive DEP‐STC under two moving models, which can offer the network designer some greatly significant insights into achieving perfect secrecy. Simulations validate our derived theoretical results, and indicate that RWP moving receiver can obtain a higher security level than RD moving one, while RWP eavesdropper can lead to a lower security.

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