5 papers
Flexible FTN-Aided OTFS Modulation for High-Mobility LEO Satellite-to-Ground Communications
Chaorong Zhang, Benjamin K. Ng, Hui Xu +3
In low Earth orbit (LEO) satellite communications, the link quality fluctuates drastically during a satellite pass, exhibiting a wide dynamic range from the horizon to the zenith.…
RIS-Empowered OTFS Modulation With Faster-than-Nyquist Signaling in High-Mobility Wireless Communications
Chaorong Zhang, Benjamin K. Ng, Hui Xu +2
High-mobility wireless communication systems suffer from severe Doppler spread and multi-path delay, which degrade the reliability and spectral efficiency of conventional modulatio…
From Reliability to Security: How RIS-Assisted Adaptive SM and SSK Enhances Wireless Systems
Chaorong Zhang, Benjamin K. Ng, Ke Wang +2
This paper proposes two novel wireless transmission schemes, namely reconfigurable intelligent surface (RIS)-assisted received adaptive spatial modulation (RASM) scheme and RIS-ass…
RIS-Assisted Received Adaptive Spatial Modulation for Wireless Communications
Chaorong Zhang, Hui Xu, Benjamin K. Ng +2
A novel wireless transmission scheme, as named the reconfigurable intelligent surface (RIS)-assisted received adaptive spatial modulation (RASM) scheme, is proposed in this paper.…
What Roles Can Spatial Modulation and Space Shift Keying Play in LEO Satellite-Assisted Communications?
Chaorong Zhang, Qingying Wu, Yuyan Liu +2
In recent years, the rapid evolution of satellite communications play a pivotal role in addressing the ever-increasing demand for global connectivity, among which the Low Earth Orb…