5 citations · 9 across the 8 of their papers we have counts for
3 papers · 1 filter
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…
Joint Channel and Data Estimation for Multiuser Extremely Large-Scale MIMO Systems
Kabuto Arai, Koji Ishibashi, Hiroki Iimori +2
This paper proposes a joint channel and data estimation (JCDE) algorithm for uplink multiuser extremely large-scale multiple-input-multiple-output (XL-MIMO) systems. The initial ch…
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…