Covert Rate Maximization in Wireless Full-Duplex Relaying Systems With Power Control

Sun, Ranran; Yang, Bin; Ma, Siqi; Shen, Yulong; Jiang, Xiaohong

doi:10.1109/tcomm.2021.3089694

Cited by 32 publications

(15 citation statements)

References 29 publications

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“…Gao et al [64] analyzed the covert performance of relay-assisted Internet of Things (IoT) systems with a source-destination pair, a passive warden, and multiple relays, where random selection and superior-link selection schemes were considered. In comparison with the scheme in [63], Sun et al proposed a full-duplex relaying scheme to further improve the covertness performance of systems and investigated the fundamental covert rate performance, where the different relay work modes are considered, including the FD mode and the half-duplex (HD) mode [65]. Jiang et al investigated the resource allocation problem of UAV network covert communication in multi-user scenarios, considering the location uncertainty of the warden, a robust resource allocation and UAV trajectory optimization problem with worst-case covertness constraint is then formulated to maximize the average covert rate [66].…”

Section: B Weakening Signal Leakagementioning

confidence: 99%

Covert Communications in Satellite Internet: A Survey

Guo¹,

He²,

Zhang³

et al. 2022

J-NaNA

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The broadcast nature of wireless channels and broad coverage brings significant challenges to the security of Satellite Internet. Recently, a new security paradigm named covert communication aims to enhance security by hiding the transmission process and has received great research attention. Various covert transmission schemes were proposed to achieve covertness for different network scenarios. Motivated by the importance of promising security techniques, this survey provides a comprehensive overview of the recent works on covert communication in Satellite Internet for the first time. We first introduce the basic architecture and characteristics of Satellite Internet, as well as its access security challenges. Then, an in-depth overview of covert communication technologies is provided with an emphasis, which is divided into two categories, i.e., traditional ones and information theory-based ones. Finally, several key challenges and future research directions on covert communication are presented.

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Section: B Weakening Signal Leakagementioning

confidence: 99%

Covert Communications in Satellite Internet: A Survey

Guo¹,

He²,

Zhang³

et al. 2022

J-NaNA

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“…Covert communications, which intend to hide the existence of wireless communications, have emerged as exciting security technology to preserve users' privacy and also prevent wireless transmission content from being eavesdropped [6]. Such a security technology is highly appealing [7], especially when the DCNTs are deployed to provide some critical services, such as military, healthcare and location tracking.…”

Section: Introductionmentioning

confidence: 99%

Covert Rate Study for Full-Duplex D2D Communications Underlaid Cellular Networks

Yang

Shen

et al. 2023

IEEE Internet Things J.

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Device-to-device (D2D) communications underlaid cellular networks have emerged as a promising network architecture to provide extended coverage and high data rate for various Internet of Things (IoT) applications. However, because of the inherent openness and broadcasting nature of wireless communications, such networks face severe risks of data privacy disclosure. This paper investigates the covert communications in such networks for providing enhanced privacy protection. Specifically, this paper explores the critical covert rate performance in a full-duplex D2D communication underlaid cellular network consisting of a base station, a cellular user, a D2D pair with a transmitter and a full-duplex receiver, and a warden, where the D2D receiver can operate over either the full-duplex (FD) mode or the half-duplex (HD) mode. We first derive transmission outage probabilities of cellular and D2D links under the FD and HD modes, respectively. Based on these probabilities, we further provide theoretical modelling for the covert rate under each mode and explore the corresponding covert rate maximization by jointly optimizing the transmit powers of the D2D pair and the cellular user. To improve the covert rate performance, we propose a general mode in which the D2D receiver can flexibly switch between these two modes. Under the general mode, we also investigate the theoretical modelling and maximization problems of covert rate. Finally, we present extensive numerical results to illustrate the covert rate performances under the FD, HD, and general modes.

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“…In addition, more and more recent studies on covert communication scenarios with relay nodes have been conducted. The fundamental covert rate performance of two‐hop wireless relaying system with relay that can work at either the full‐duplex (FD) mode or the half‐duplex (HD) is analyzed in [12]. The transmit power allocation strategy of each relay nodes in multi‐hop routing networks are developed in [13].…”

Section: Introductionmentioning

confidence: 99%

Energy‐efficient covert communication with adaptive assist nodes group

et al. 2023

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In this paper, a joint detection strategy of Willie based on two phases observation is proposed and an energy‐efficient covert communication scheme with an adaptive assist nodes group (AANG) based on uniform jamming power (UJP) strategy is proposed to against the joint‐phase detection of Willie, which achieves covert communication with lower energy cost and higher average covert rate (ACR). The probability of detection error (PDE) at Willie with joint‐phase detection and ACR are derived. Furthermore, the optimal power allocation of legitimate transmitters is resolved to maximize ACR. Numerical results demonstrate the benefit of the proposed scheme over the covert rate and consumed jamming power.

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Covert Rate Maximization in Wireless Full-Duplex Relaying Systems With Power Control

Cited by 32 publications

References 29 publications

Covert Communications in Satellite Internet: A Survey

Covert Communications in Satellite Internet: A Survey

Covert Rate Study for Full-Duplex D2D Communications Underlaid Cellular Networks

Energy‐efficient covert communication with adaptive assist nodes group

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