6 papers
Beam Squint Assisted User Localization in Near-Field Integrated Sensing and Communications Systems
Hongliang Luo, Feifei Gao, Wanmai Yuan +1
Integrated sensing and communication (ISAC) has been regarded as a key technology for 6G wireless communications, in which large-scale multiple input and multiple output (MIMO) arr…
Hierarchical Codebook Design for Near-Field MmWave MIMO Communications Systems
Jiawei Chen, Feifei Gao, Mengnan Jian +1
Communications system with analog or hybrid analog/digital architectures usually relies on a pre-defined codebook to perform beamforming. With the increase in the size of the anten…
Learning Heterogeneous Agent Cooperation via Multiagent League Training
Qingxu Fu, Xiaolin Ai, Jianqiang Yi +3
Many multiagent systems in the real world include multiple types of agents with different abilities and functionality. Such heterogeneous multiagent systems have significant practi…
A Cooperation Graph Approach for Multiagent Sparse Reward Reinforcement Learning
Qingxu Fu, Tenghai Qiu, Zhiqiang Pu +2
Multiagent reinforcement learning (MARL) can solve complex cooperative tasks. However, the efficiency of existing MARL methods relies heavily on well-defined reward functions. Mult…
A Policy Resonance Approach to Solve the Problem of Responsibility Diffusion in Multiagent Reinforcement Learning
Qingxu Fu, Tenghai Qiu, Jianqiang Yi +3
SOTA multiagent reinforcement algorithms distinguish themselves in many ways from their single-agent equivalences. However, most of them still totally inherit the single-agent expl…
Vision-Aided Blockage Avoidance in UAV-assisted V2X Communications
Ruijin Ding, Weihua Xu, Wanmai Yuan +1
The blockage is a key challenge for millimeter wave communication systems, since these systems mainly work on line-of-sight (LOS) links, and the blockage can degrade the system per…