16 citations · 54 across the 10 of their papers we have counts for
9 papers · 1 filter
Fundamentals of NOMA in Low-Earth Orbit Coordinated Multi-Satellite Networks
Xiangyu Li, Bodong Shang, Junchao Ma +3
Coordinated multi-satellite (CoMS) transmission and non-orthogonal multiple access (NOMA) are envisioned to jointly enhance coverage, capacity, and spectrum efficiency for satellit…
Satellite NOMA for Direct-to-Cell Communications: Fundamentals, Protocols, and Opportunities
Xiangyu Li, Bodong Shang, Junchao Ma +3
Direct-to-cell (DTC) satellite communication is regarded as one of the most recent technologies that provides global connectivity. However, with the growing number of wireless user…
Reconfigurable Intelligent Surface-Enhanced Satellite Networks: Deployment Strategies, Key Capabilities, Practical Solutions, and Future Directions
Ziyuan Zheng, Xiangyu Li, Shirui Zuo +4
Satellite networks promise wide-area 6G coverage but face two persistent barriers: blockage-induced service discontinuities and increasingly stringent spectrum coexistence across s…
Coverage and Spectral Efficiency of NOMA-Enabled LEO Satellite Networks with Ordering Schemes
Xiangyu Li, Bodong Shang, Qingqing Wu +1
This paper investigates an analytical model for low-earth orbit (LEO) multi-satellite downlink non-orthogonal multiple access (NOMA) networks. The satellites transmit data to multi…
Downlink Performance of Cell-Free Massive MIMO for LEO Satellite Mega-Constellation
Xiangyu Li, Bodong Shang
Low-earth orbit (LEO) satellite communication (SatCom) has emerged as a promising technology to improve wireless connectivity in global areas. Cell-free massive multiple-input mult…
Spectrum Sharing in Satellite-Terrestrial Integrated Networks: Frameworks, Approaches, and Opportunities
Bodong Shang, Zheng Wang, Xiangyu Li +3
With the construction of low-earth orbit (LEO) satellite constellations, ubiquitous connectivity has been achieved. Terrestrial networks (TNs), such as cellular networks, are mainl…
Advancing Multi-Connectivity in Satellite-Terrestrial Integrated Networks: Architectures, Challenges, and Applications
Xiangyu Li, Bodong Shang
Multi-connectivity (MC) in satellite-terrestrial integrated networks (STINs), included in the Third-Generation Partnership Project (3GPP) standards, is regarded as a promising tech…
A Bistatic Sensing System in Space-Air-Ground Integrated Networks
Xiangyu Li, Bodong Shang, Qingqing Wu
Sensing is anticipated to have wider extensions in communication systems with the boom of non-terrestrial networks (NTNs) during the past years. In this paper, we study a bistatic…
An Analytical Model for Coordinated Multi-Satellite Joint Transmission System
Xiangyu Li, Bodong Shang
Satellite communication is one of the key technologies that is enabling next-generation networks. However, nearest-satellite-supported downlink transmission may not meet a user's r…