Jamming Strategies in Covert Communication

Shmuel, Ori; Cohen, Asaf; Gurewitz, Omer

doi:10.1007/978-3-030-20951-3_1

Cited by 1 publication

(1 citation statement)

References 15 publications

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“…In recent years, researchers consider using multiantenna jammers to improve the performance of covert communication systems [35]. In [36], the enhancement effect of multiantenna AN nodes on covert performance is studied, and it is pointed out that directional beamforming is the optimal AN strategy. In [14], an FD multiantenna receiver is used to achieve covert communication based on the uncertainty of interference power.…”

Section: Previous Work and Motivationsmentioning

confidence: 99%

Covert Communication for Wireless Networks with Full‐Duplex Multiantenna Relay

Yang

Tang

et al. 2022

Complexity

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In this work, we investigated a covert communication method in wireless networks, which is realized by multiantenna full-duplex single relay. In the first stage, the source node sends covert messages to the relay, and the relay uses a single antenna to send interference signals to the adversary node to protect the covert information being transmitted. In the second stage, the relay decodes and forwards the covert information received in the first stage; at the same time, the relay uses zero-forcing beamforming to send interference signals to the warden to ensure covert transmission. The detection error rate, transmission outage probability, maximum effective covert rate, and other performance indicators are derived in two stages, and the total performance of the system is derived and analyzed. Then, the performance indicators are verified and analyzed by simulation. Our analysis shows that the maximum effective covert rate of using the characteristics of multiantenna to interfere with Willie in the second stage is taken as the total covert performance of the system, and the transmission interruption probability is significantly less than that of the first stage, so the corresponding maximum effective concealment efficiency will be greater.

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Section: Previous Work and Motivationsmentioning

confidence: 99%