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eess.SP2024
Covert Communications Without Pre-Sharing of Side Information and Channel Estimation Over Quasi-Static Fading Channels
Hiroki Fukada, Hiroki Iimori, Chandan Pradhan +2
We propose a new covert communication scheme that operates without pre-sharing side information and channel estimation, utilizing a Gaussian-distributed Grassmann constellation for…
eess.SP2024★ 4 cited
Boosting Spectral Efficiency with Data-Carrying Reference Signals on the Grassmann Manifold
Naoki Endo, Hiroki Iimori, Chandan Pradhan +2
In wireless networks, frequent reference signal transmission for accurate channel reconstruction may reduce spectral efficiency. To address this issue, we consider to use a data-ca…