Author

Xing-Xiang Peng

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2026

Rotatable Antenna-Aided Secure MIMO Communications: Joint Transmit and Receive Orientation Design

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

Preprint Aug 2026

Intelligent Reflecting Surface Deployment for Low-Altitude Coverage: Illumination Geometry, Directional Characteristics, and Optimization

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

Preprint Sep 2026

Rotatable Antenna Enabled Multi-Satellite Communications: Joint Satellite Selection and Boresight Trajectory Optimization

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