6 papers
Performance Analysis for Heterogeneous Air-Ground ISAC in Coordinated Multipoint Networks
Yihang Jiang, Xiaoyang Li, Guangxu Zhu +6
The emergence of the \textit{low-altitude economy} (LAE) calls for highly integrated and reliable wireless systems that can simultaneously support \textit{communication and sensing…
Finite-Precision Conjugate Gradient Method for Massive MIMO Detection
Yiming Fang, Li Chen, Changsheng You +2
The implementation of the conjugate gradient (CG) method for massive MIMO detection is computationally challenging, especially for a large number of users and correlated channels.…
BeamVLM for Low-altitude Economy: Generative Beam Prediction via Vision-language Models
Chenran Kou, Changsheng You, Mingjiang Wu +3
For low-altitude economy (LAE), fast and accurate beam prediction between high-mobility unmanned aerial vehicles (UAVs) and ground base stations is of paramount importance, which e…
FedLoDrop: Federated LoRA with Dropout for Generalized LLM Fine-tuning
Sijing Xie, Dingzhu Wen, Changsheng You +3
Fine-tuning (FT) large language models (LLMs) is crucial for adapting general-purpose models to specific tasks, enhancing accuracy and relevance with minimal resources. To further…
Aerial Semantic Relay-Enabled SAGIN: Joint UAV Deployment and Resource Allocation
Yanbo Yin, Dingzhu Wen, Changsheng You +3
Space-Air-Ground Integrated Networks (SAGINs) are pivotal for enabling ubiquitous connectivity in 6G systems, yet they face significant challenges due to severe satellite-to-ground…
Federated Dropout: Convergence Analysis and Resource Allocation
Sijing Xie, Dingzhu Wen, Xiaonan Liu +3
Federated Dropout is an efficient technique to overcome both communication and computation bottlenecks for deploying federated learning at the network edge. In each training round,…