Fluid antenna arrays (FAAs), support multiuser downlink transmission by activating a subset of reconfigurable ports. The activation mask jointly determines the effective channel and the sparse radiating aperture, which requires a balance among sum rate, sidelobe suppression, hardware constraints, and online complexity....
Yuanhui Wu, Zhen-Tian Zhang, Hanjiang Hong et al.· arXiv.org· 3 citations
The deployment of integrated sensing and communication (ISAC) systems poses new challenges to physical-layer security (PLS), as sensing waveforms directed toward targets may be exploited by eavesdroppers (Eves), causing information leakage. Meanwhile, security enhancement must jointly consider multi-user quality-of-ser...
Ci-Xiao Zhang, Yin Xu, Hanjiang Hong et al.· IEEE Transactions on Communi...· 0 citations
Current digital semantic communication systems have primarily focused on maintaining compatibility with conventional constellation-based modulation. In contrast, index modulation (IM) represents a more spectrally and energy-efficient alternative by exploiting additional dimensions for information conveyance. Recognizin...
Xinghao Guo, Yin Xu, Dazhi He et al.· IEEE Transactions on Communi...· 1 citation
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