10 papers
Discrete Coupling and Localized Motion for Pinching-Antenna Systems (PASS)
Jie Jiang, Xiaoxia Xu, Chan-Tong Lam +2
The practical implementation of pinching-antenna systems (PASS) is challenging due to hardware limitations in large-scale antenna movement and continuous radiation power adjustment…
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.…
Computational Complexity-Constrained Spectral Efficiency Analysis for 6G Waveforms
Saulo Queiroz, João P. Vilela, Benjamin Koon Kei Ng +2
In this work, we present a tutorial on how to account for the computational time complexity overhead of signal processing in the spectral efficiency (SE) analysis of wireless wavef…
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…
MIMO Asynchronous MAC with Faster-than-Nyquist (FTN) Signaling
Zichao Zhang, Melda Yuksel, Halim Yanikomeroglu +2
Faster-than-Nyquist (FTN) signaling is a nonorthogonal transmission technique, which brings in intentional inter-symbol interference. This way it can significantly enhance spectral…
Bit-Interleaved Multiple Access: Improved Fairness, Reliability, and Latency for Massive IoT Networks
Ferdi Kara, Hakan Kaya, Halim Yanikomeroglu +2
In this paper, we propose bit-interleaved multiple access (BIMA) to enable Internet-of-Things (IoT) networks where a massive connection is required with limited resource blocks. Fi…