5 papers
Semi-Gridless Variational Bayes Channel Estimation in XL-MIMO: Near-Field Modeling and Inference
Van-Chung Luu, Toan-Van Nguyen, Nuria González-Prelcic +1
Extremely large antenna arrays and high-frequency operation are two key technologies that advance performance metrics such as higher data rates, lower latency, and wider coverage i…
RSS map-assisted MIMO channel estimation in the upper mid-band under pilot constraints
Alireza Javid, Nuria González-Prelcic
Accurate wireless channel estimation is critical for next-generation wireless systems, enabling precise precoding for effective user separation, reduced interference across cells,…
Environment-Aware MIMO Channel Estimation in Pilot-Constrained Upper Mid-Band Systems
Seyed Alireza Javid, Nuria González-Prelcic
Accurate multiple-input multiple-output (MIMO) channel estimation is critical for next-generation wireless systems, enabling enhanced communication and sensing performance. Traditi…
Enhancing Diffusion Model Guidance through Calibration and Regularization
Seyed Alireza Javid, Amirhossein Bagheri, Nuria González-Prelcic
Classifier-guided diffusion models have emerged as a powerful approach for conditional image generation, but they suffer from overconfident predictions during early denoising steps…
Joint UE positioning and distributed sensing in the upper mid-band exploiting virtual apertures
Soroush Mesforush, Murat Bayraktar, Nuria González-Prelcic
Networks exploiting distributed integrated sensing and communication (DISAC) nodes can provide enhanced localization and sensing performance, further emphasized when operating with…