6 papers
Robust Resource Allocation in RIS-Assisted Wireless Networks Integrating NOMA and Over-the-Air Federated Learning
Saeid Pakravan, Mohsen Ahmadzadeh, Ming Zeng +4
This paper addresses the critical issue of spectrum scarcity and the need to support diverse services, including communication and learning tasks, by presenting a reconfigurable in…
Backscatter-Assisted High-Speed Rail Communications in Straight Tunnel Environments: Effects of Tag Number and Phase Control
Yunping Mu, Gongpu Wang, Ruisi He +3
Backscatter communication is a promising technology to enhance the signal strength received by the receiver in straight tunnel environments. The impact of the number of tags and th…
Mode Switching-based STAR-RIS with Discrete Phase Shifters
MohammadHossein Alishahi, Ming Zeng, Paul Fortier +3
The increasing demand for cost-effective, high-speed Internet of Things (IoT) applications in the coming sixth-generation (6G) networks has driven research toward maximizing spectr…
Sum Rate Maximization for NOMA-Assisted Uplink Pinching-Antenna Systems
Ming Zeng, Ji Wang, Xingwang Li +3
In this paper, we investigate an uplink communication scenario in which multiple users communicate with an access point (AP) employing non-orthogonal multiple access (NOMA). A pinc…
Deep Learning Based Joint Channel Estimation and Positioning for Sparse XL-MIMO OFDM Systems
Zhongnian Li, Chao Zheng, Jian Xiao +4
This paper investigates joint channel estimation and positioning in near-field sparse extra-large multiple-input multiple-output (XL-MIMO) orthogonal frequency division multiplexin…
Two-Phase Channel Estimation for RIS-Assisted THz Systems with Beam Split
Xin Su, Ruisi He, Peng Zhang +3
Reconfigurable intelligent surface (RIS)-assisted terahertz (THz) communication is emerging as a key technology to support ultra-high data rates in future sixth-generation networks…