Intelligent reflecting surfaces (IRSs) have attracted extensive research interest for their passive beamforming gains. However, practical IRS-assisted systems rely heavily on accurate channel state information (CSI), which inevitably suffers from estimation errors. Motivated by this challenge, we first investigate the...
Shu-Cheng Yang, Yuwen Cao, Ji-Guang He et al.· IEEE Communications Letters· 0 citations
To strengthen the security of large-scale space-air-ground integrated networks (SAGINs), this paper investigates covert communication against non-cooperative ground base stations (BSs) that detect satellite transmissions via signal power monitoring. In this scenario, numerous low-earth-orbit (LEO) satellites deployed a...
Min Wu, Ke-Feng Guo, Theodoros A. Tsiftsis et al.· IEEE Transactions on Wireles...· 0 citations
A novel end-to-end causal Temporal Convolutional Network (TCN) framework for simultaneous three-dimensional position and single-axis orientation (azimuth) estimation for receivers moving on a fixed horizontal plane in indoor VLP systems is proposed.
Sunita Khichar, Sushank Chaudhary, Amir Parnianifard et al.· IEEE Access· 0 citations
Effective scaling of blockchain-enabled Industrial Internet of Things (IIoT) requires sharding that simultaneously ensures transaction locality, strict committee-size feasibility, and robustness against malicious node concentration. Existing methods often fail to balance this trilemma, risking either infeasible deploym...
Guangxia Xu, Zhuo Ye, Lu Wang et al.· IEEE Transactions on Network...· 0 citations
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