6 papers
Power Minimization in Pinching-Antenna Systems under Probabilistic LoS Blockage
Lei Li, Yanqing Xu, Tenghao Cai +1
With great flexibility to adjust antenna positions, pinching antennas (PAs) are promising for alleviating large-scale attenuation in wireless networks. In this work, we investigate…
QoS-Constrained Scheduling in Multi-Cell Multi-User MIMO Networks
Tenghao Cai, Lei Li, Tsung-Hui Chang
In 5G and beyond networks, efficient scheduling is essential to exploit the gains of multi-user MIMO (MU-MIMO) equipped with carrier aggregation and joint transmission (JT). Howeve…
Toward Distributed User Scheduling and Coordinated Beamforming in Multi-Cell mmWave Networks: A Sensing-Assisted Framework
Tenghao Cai, Lei Li, Shutao Zhang +1
Providing guaranteed quality of service for cell-edge users remains a longstanding challenge in wireless networks. While coordinated interference management was proposed decades ag…
Distributed User Scheduling in Multi-Cell MIMO O-RAN with QoS Constraints
Tenghao Cai, Lei Li, Tsung-Hui Chang
Distributed scheduling is essential for open radio access network (O-RAN) employing advanced physical-layer techniques such as multi-user MIMO (MU-MIMO), carrier aggregation (CA),…
PEMNet: Towards Autonomous and Enhanced Environment-Aware Mobile Networks
Lei Li, Yanqing Xu, Ye Xue +4
With 5G deployment and the evolution toward 6G, mobile networks must make decisions in highly dynamic environments under strict latency, energy, and spectrum constraints. Achieving…
When GNNs meet symmetry in ILPs: an orbit-based feature augmentation approach
Qian Chen, Lei Li, Qian Li +6
A common characteristic in integer linear programs (ILPs) is symmetry, allowing variables to be permuted without altering the underlying problem structure. Recently, GNNs have emer…