On Covert Communication with Interference Uncertainty

Liu, Zhihong; Li, Jiajia; Zeng, Yong; Ma, Jianfeng; Huang, Qiping

doi:10.1109/icc.2018.8422940

Cited by 41 publications

(15 citation statements)

References 18 publications

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“…Hence there exists a minimum value of ε shown as (γ * , ε * ) in the figure, which can be derived from Eqs. (13) and (14) mathematically. Actually, the values of γ * and ε * are related to the parameters such as p C m D n , d C m ,W d DP n ,W , P H 0 , and P H 1 .…”

Section: Simulation Results and Analysismentioning

confidence: 99%

“…As covert communication is an emerging and cutting-edge wireless communication security technique, it aims to ensure the undetectability of a wireless transmission while guaranteeing a negligible successful detection probability by exploiting the average power uncertainty of received signals at a warden [12]. By utilizing the covert communication, a vicious warden cannot detect the transmission so that it has no chance to take subsequent malicious acts, e.g., eavesdropping and decoding attack, denial of service (DoS) attack, and electronic countermeasure [13]. More importantly, covert communication can be achieved with unknown or imperfect CSI of warden's monitoring channels [14]- [16], which makes it more consistent with practical applications.…”

Section: Introduction a Background And Related Workmentioning

confidence: 99%

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Resource Allocation for Covert Communication in D2D Content Sharing: A Matching Game Approach

Shi

et al. 2019

IEEE Access

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Device-to-device (D2D) content sharing, as a promising solution to rapidly growing mobile data traffic, is facing serious security issues. Hence, how to ensure its security is challenging and meaningful work. Covert communication is regarded as an emerging and cutting-edge security technique for its higher level of security and less need for channel state information (CSI), and accordingly, has attracted wide attention. However, it is not easy to directly apply covert communication to D2D content sharing to ensure both security and efficiency. In this paper, a novel covert communication model is constructed in D2D content sharing scenario, where the co-channel interference (CCI) introduced by spectrum reusing is exploited as the cover of contents so that the contents are hidden from the warden. Then, we propose a secure and efficient resource allocation scheme to ensure both security and efficiency of D2D content sharing by addressing the following two issues: 1) In order to guarantee the robustness of our scheme, covert constraints are learned by analyzing the detection performance at the warden, i.e., the security of D2D content sharing is guaranteed even considering some extremely adverse environments. 2) The joint spectrum allocation and power control is modeled as a two-sided matching problem and then reformulated as the one-to-one matching game based on the principle of mutual benefit, in order to ensure the quality of service (QoS) requirements of both D2D pairs and cellular users. Then, covert constraints guaranteed resource allocation algorithm based on Gale-Shapley algorithm is proposed. Its properties such as stability, optimality, convergence, and complexity are analyzed. The extensive simulation results are provided to verify the theoretical analyses and demonstrate the efficiency of our proposed algorithm, which has at least 7.63% performance gain compared with some existing approaches and no more than 4.83% performance loss compared with the exhaustive search. INDEX TERMS D2D content sharing, covert communication, co-channel interference, resource allocation, matching game.

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Section: Simulation Results and Analysismentioning

confidence: 99%

Section: Introduction a Background And Related Workmentioning

confidence: 99%

Resource Allocation for Covert Communication in D2D Content Sharing: A Matching Game Approach

Shi

et al. 2019

IEEE Access

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“…Considering that the warden has uncertainty on the receiver's noise power, the authors in [7] and [8] proved that a positive covert rate can be achieved. Moreover, the interference uncertainty [9], [10] and the channel uncertainty [11], [12] were also studied in covert communication.…”

Section: Introductionmentioning

confidence: 99%

Covert Communication With Relay Selection

Sun

Zhang

et al. 2021

IEEE Wireless Commun. Lett.

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In this letter, we investigate covert communication in relay networks with relay selection. We consider the scenario that while forwarding the source's message, the selected relay opportunistically transmits its own message to the destination covertly. We derive the probability of detection error (PDE) and the average covert rate (ACR) in a closed form, based on which we analyse the effects of system parameters on the performance of the covert communication. Our analysis indicates that applying relay selection causes a decrease in the PDE, however, it can provide an ACR gain when the transmission rate of the source increases.

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“…In [21], [22], the authors utilized a full-duplex receiver to achieve covert communications in wireless fading channels and analyzed the covert communication limits. The covert communication with interference uncertainty from non-cooperative transmitters is studied in [23].…”

Section: Introductionmentioning

confidence: 99%

Covert Transmission With a Self-Sustained Relay

Yan

Shu

et al. 2019

IEEE Trans. Wireless Commun.

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This work examines the possibility, performance limits, and associated costs for a self-sustained relay to transmit its own covert information to a destination on top of forwarding the source's information. Since the source provides energy to the relay for forwarding its information, the source does not allow the relay's covert transmission and is to detect it. Considering the time switching (TS) and power splitting (PS) schemes for energy harvesting, where all the harvested energy is used for transmission at the self-sustained relay, we derive the minimum detection error probability ξ * at the source, based on which we determine the maximum effective covert rate Ψ * subject to a given covertness constraint on ξ * . Our analysis shows that ξ * is the same for the TS and PS schemes, which leads to the fact that the cost of achieving Ψ * in both the two schemes in terms of the required increase in the energy conversion efficiency at the relay is the same, although the values of Ψ * in these two schemes can be different in specific scenarios. For example, the TS scheme outperforms the PS scheme in terms of achieving a higher Ψ * when the transmit power at the source is relatively low. If the covertness constraint is tighter than a specific value, it is the covertness constraint that limits Ψ * , and otherwise it is upper bound on the energy conversion efficiency that limits Ψ * .

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On Covert Communication with Interference Uncertainty

Cited by 41 publications

References 18 publications

Resource Allocation for Covert Communication in D2D Content Sharing: A Matching Game Approach

Resource Allocation for Covert Communication in D2D Content Sharing: A Matching Game Approach

Covert Communication With Relay Selection

Covert Transmission With a Self-Sustained Relay

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