The physical model of multi-mode pinching-antenna systems (PASS) is proposed based on the coupled-mode theory. Within the considered model, multiple guided modes are simultaneously excited in a single waveguide and exploited as independent signal-bearing channels, thus providing additional modal degrees of freedom for...
Jing-Jing Zhao, Song-Tao Xue, Xi-Dong Mu et al.· 0 citations
This letter investigates rotatable antenna (RA)-enabled downlink non-orthogonal multiple access (NOMA) communications, in which the antenna boresights can be independently adjusted to introduce additional spatial degrees of freedom. Under the successive interference cancellation constraint, we formulate a sum rate maxi...
Yi-Heng Zhang, Jing-Jing Zhao, Xi-Dong Mu et al.· IEEE Wireless Communications...· 0 citations
This paper proposes a movable-element (ME) enabled simultaneously transmitting and reflecting surface (ME-STARS)-assisted non-orthogonal multiple access (NOMA) communication system, where the positions of STARS elements can be flexibly reconfigured to introduce additional spatial degrees-of-freedom. Our objective is to...
Jing-Jing Zhao, Yi-Heng Zhang, Kai-Quan Cai et al.· 0 citations
Numerical results demonstrate that: 1) Eve's velocities and positions can be accurately tracked with the proposed two-timescale framework in both multiple- and single-waveguide scenarios; and 2) PASS achieves superior secrecy rate compared to conventional multiple-antenna benchmarks.
Haowen Song, Jing-Jing Zhao, Xi-Dong Mu et al.· 1 citation
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