5 papers · 1 filter
Sub-Connected Hybrid Beamfocusing Design for RSMA-Enabled Near-Field Communications with Imperfect CSI and SIC
Jiasi Zhou, Ruirui Chen, Yanjing Sun +1
Near-field spherical waves inherently encode both direction and distance information, enabling spotlight-like beam focusing for targeted interference mitigation. However, whether s…
Air-to-Ground Cooperative OAM Communications
Ruirui Chen, Yu Ding, Beibei Zhang +2
For users in hotspot region, orbital angular momentum (OAM) can realize multifold increase of spectrum efficiency (SE), and the flying base station (FBS) can rapidly support the re…
Precoding Based Downlink OAM-MIMO Communications with Rate Splitting
Ruirui Chen, Jinyang Lin, Beibei Zhang +2
Orbital angular momentum (OAM) and rate splitting (RS) are the potential key techniques for the future wireless communications. As a new orthogonal resource, OAM can achieve the mu…
Joint Power Allocation and Placement Scheme for UAV-assisted IoT with QoS Guarantee
Ruirui Chen, Yanjing Sun, Liping Liang +1
In the disaster and remote regions, unmanned aerial vehicles (UAVs) can assist the data acquisition for Internet of Things (IoT). How to cover massive IoT devices (IDs), which requ…
Cooperative Orbital Angular Momentum Wireless Communications
Ruirui Chen, Wenchi Cheng, Jinyang Lin +1
Orbital angular momentum (OAM) mode multiplexing has the potential to achieve high spectrum-efficiency communications at the same time and frequency by using orthogonal mode resour…