6 papers · 1 filter
Cognitive Link-Flexible FTN-OTFS Design for High-Mobility LEO Satellite Communications
Chaorong Zhang, Benjamin K. Ng, Hui Xu +4
Low Earth orbit (LEO) satellite links are challenged by pronounced signal-to-noise ratio (SNR) variation and severe Doppler shifts. Although mobility robustness is provided by orth…
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…
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…
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.…
Maximum Channel Coding Rate of Finite Block Length MIMO Faster-Than-Nyquist Signaling
Zichao Zhang, Melda Yuksel, Halim Yanikomeroglu +2
The pursuit of higher data rates and efficient spectrum utilization in modern communication technologies necessitates novel solutions. In order to provide insights into improving s…