5 papers
Sensing in Low-altitude Wireless Networks: Systems, Techniques, and Developments
Zihao Tao, Yiming Zhao, Hongtao Zhao +2
The highly dynamic and safety-critical characteristics of low-altitude airspace render sensing an indispensable component of low-altitude wireless networks (LAWN). Although sensing…
LMMSE-Optimal Pilot Pattern Design Based on Covariance Matrix Approximation for OFDM Channel Estimation in Doubly Dispersive Channel
Xuyao Yu, Zijun Gong, Zhilu Lai
This paper investigates the optimal pilot pattern design, in the linear minimum mean square error (LMMSE) estimator sense, for OFDM systems in doubly dispersive channels. To enable…
Optimal Pilot Pattern Design for LMMSE Channel Estimation in OFDM Systems with Finite Block Size over Doubly Dispersive Channels
Xuyao Yu, Zijun Gong, Zhilu Lai
Pilot pattern design over doubly dispersive channels has regained significant research interest, driven by emerging high-mobility applications in 5G-Advanced and 6G systems, as wel…
Characterizing ISCI in Multi-carrier ISAC Systems over Doubly Dispersive Channel: Joint Sensing and Communication Performance Analysis
Xuyao Yu, Zijun Gong, Zhilu Lai
This paper presents a systematic analysis of inter-symbol and inter-carrier interference (ISCI) modeling in doubly dispersive channels for integrated sensing and communication (ISA…
Low-Cost Infrastructure-Free 3D Relative Localization with Sub-Meter Accuracy in Near Field
Qiangsheng Gao, Ka Ho Cheng, Li Qiu +1
Relative localization in the near-field scenario is critically important for unmanned vehicle (UxV) applications. Although related works addressing 2D relative localization problem…