27 papers
RadioDiff-v2: Generative Angular Radio Maps for Multi-Beam Selection and Localization
Xiucheng Wang, Junxi Huang, Nan Cheng
Angular radio maps describe the received-power distribution over the angle of arrival and underpin beam selection and receiver localization in sixth-generation (6G) networks. Predi…
PALM: Single-Station Super-Resolved Small-Scale Radio-Map Localization by Path-Atom Matching
Xiucheng Wang, Nan Cheng
Localizing from a single base station is a longstanding goal, since it removes the synchronized anchors that geometric methods require. A radio map (RM) answers a position query fr…
RadioDiff-Inv2: Differentiable Diffusion Inversion under Location Drift from Sparse Noisy Measurements for Radio Map Estimation
Xiucheng Wang, Kailong Wang, Nan Cheng
Radio map (RM) estimation is a key enabler for environment-aware optimization in 6G wireless networks. In practice, RM construction increasingly relies on crowdsourced received sig…
RMPrior: Bridging Propagation Priors and Diffusion Refinement for Efficient Radio Map Construction
Zixuan Guo, Xiucheng Wang, Nan Cheng
Diffusion models achieve high-fidelity radio map construction through iterative denoising, yet their sampling cost limits practicality in dynamic wireless systems where radio maps…
A Tutorial on Learning-Based Radio Map Construction: Data, Paradigms, and Physics-Awareness
Xiucheng Wang, Yuhao Pan, Nan Cheng +9
Radio maps (RMs) provide the digital representation of the wireless propagation environment, mapping complex geographical and topological boundary conditions to critical spatial-sp…
Map2APS: A Physically Grounded Benchmark for Direct Angle Power Spectrum Prediction from Urban Geometry
Junxi Huang, Xiucheng Wang, Nan Cheng +3
Angle power spectrum (APS) characterizes the directional distribution of received signal power and is directly relevant to beam management and MIMO processing. While environment-aw…