4 papers
Two-Stage IQ Imbalance Estimation and Compensation for AFDM Systems
Zhenfeng Huang, Yitong Liu, Yuping Yan +1
Affine frequency division multiplexing (AFDM) is an emerging chirp-based multicarrier waveform with strong diversity in doubly selective channels, but practical systems suffer from…
Performance Analysis of AFDM Under In-Phase and Quadrature Imbalance at Receiver
Zhenfeng Huang, Yitong Liu, Hongwen Yang
Affine Frequency Division Multiplexing (AFDM) is a chirp-based multicarrier waveform that achieves full diversity in doubly selective channels while requiring reduced pilot overhea…
Rotatable Antenna-Enabled Near-Field Integrated Sensing and Communication
Zequan Wang, Liang Yin, Yitong Liu +1
In this paper, we propose leveraging rotatable antennas (RAs) to enhance near-field communication and sensing by exploiting a new orientation-domain spatial degree-of-freedom (DoF)…
Sensing-Aided Secure Multicast in Two-Level Rotatable Antenna-Enabled ISAC Systems: Modeling and Optimization
Zequan Wang, Liang Yin, Hao Xu +3
In physical layer security, the channel state information (CSI) of passive eavesdroppers is usually difficult to obtain, which has motivated sensing-aided secure communication (SAS…