Joint communication and radar sensing, also known as integrated sensing and communication (ISAC), is evolving current networks into multifunctional systems with significant potential. This work investigates the ISAC multiple access problem in the finite blocklength (FBL) regime, which has been largely overlooked in exi...
Zhen-Tian Zhang, C. Masouros, Kai-Kit Wong et al.· IEEE Transactions on Wireles...· 0 citations
Fluid antenna systems (FASs) exploit many candidate ports for spatial diversity, but hardware constraints allow channel observations at only a few active ports. Whether full-port CSI can be recovered without pre-acquired channel statistics remains open. Under the Clarke isotropic scattering model, we show that the chan...
Zhen-Tian Zhang, Kai-Tao Meng, Tuo Wu et al.· 0 citations
A dynamic port-reconfigurable near-field channel model for FAS-assisted UAV-to-mobile user (MU) links and a FAS-adaptive subarray partition scheme utilizing a greedy strategy is developed, providing a theoretical foundation for the design and analysis of FAS in dynamic scenarios.
Hao Jiang, Wangqi Shi, Zhen-Tian Zhang et al.· 0 citations
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....
Yuan-Hui Wu, Zhen-Tian Zhang, Han-Jiang Hong et al.· arXiv.org· 3 citations
The unprecedented growth of machine-type devices has underscored the need for fundamental solutions to support emerging massive connectivity. In particular, unsourced random access (URA) has emerged as a promising paradigm, reframing the massive connectivity problem as a coding-theoretic challenge with favorable energy...
Zhen-Tian Zhang, Mohammad Javad Ahmadi, Kai-Kit Wong et al.· IEEE Transactions on Wireles...· 5 citations
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