1. 은닉 통신을 위한 다중안테나 전이중 릴레이 기법.
- Author
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류종열 and 이정훈
- Subjects
BEAMFORMING ,ANTENNAS (Electronics) ,TELECOMMUNICATION systems - Abstract
In this paper, we consider a full-duplex decode-and-forward(DF) relaying with multiple antennas for a covert communication system. We first derive the covert communication constraint that achieves the successful covert communication for the covert communication system with full-duplex DF relay. Then, we design the relay beamforming vector in order to maximize the covert rate of the destination subject to the covertness requirement of the system. Specifically, we first design the relay beamforming vector that maximizes the covert rate of the destination and relay beamforming vector that minimizes the covertness requirement of the system, independently. Then, we finally design the relay beamforming vector as a linear combination of the designed two type of beamforming vectors to achieve both covert rate maximization and covertness requirement. In the simulation results, we show that the proposed full-duplex DF relay beamforming technique improve the covert rate comparing to the existing schemes. [ABSTRACT FROM AUTHOR]
- Published
- 2024
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