This paper investigates joint antenna rotation and polarforming for low-Earth-orbit (LEO) communications, where a satellite equipped with rotatable dual-polarized antenna elements receives uplink signals from ground terminals (GTs) distributed across multiple clusters. In particular, antenna rotation redistributes dire...
Xing-Xiang Peng, Qing-Qing Wu, Jing-Feng Chen et al.· 0 citations
Physical layer security (PLS) is a promising paradigm for safeguarding 6G wireless networks by exploiting the inherent characteristics of wireless channels. However, the efficiency of conventional PLS is often limited by fixed orientation antennas. This paper investigates a rotatable antenna (RA)-aided secure multiple-...
Ai-Ling Zheng, Qing-Bin Wu, Xing-Xiang Peng et al.· IEEE Transactions on Wireles...· 0 citations
A channel model is established that incorporates BS and intelligent reflecting surface (IRS) radiation patterns for three-dimensional (3D) low-altitude coverage while preserving the existing BS configuration and develops a mixed-integer alternating optimization (AO) algorithm to solve the resulting problem.
Guo-Ying Zhang, Qingqing Wu, Ai-Ling Zheng et al.· 0 citations
This paper considers a satellite-to-ground communication system in which a ground station (GS) equipped with independently rotatable antenna (RA) elements jointly decodes independent streams from multiple low-Earth-orbit (LEO) satellites over a shared time--frequency resource. Specifically, we formulate a two-timescale...
Xingxiang Peng, Qingqing Wu, Hai-Ying Hu et al.· 0 citations
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