3 papers
cs.IT2025
Dynamic Channel Knowledge Map Construction in MIMO-OFDM Systems
Wenjun Jiang, Xiaojun Yuan, Chenchen Liu +1
Channel knowledge map (CKM) is a promising paradigm for environment-aware communications by establishing a deterministic mapping between physical locations and channel parameters.…
eess.SP2025
Joint Activity Detection and Channel Estimation for Massive Connectivity: Where Message Passing Meets Score-Based Generative Priors
Chang Cai, Wenjun Jiang, Xiaojun Yuan +1
Massive connectivity supports the sporadic access of a vast number of devices without requiring prior permission from the base station (BS). In such scenarios, the BS must perform…
cs.IT2024
Interference-Cancellation-Based Channel Knowledge Map Construction and Its Applications to Channel Estimation
Wenjun Jiang, Xiaojun Yuan, Boyu Teng +2
Channel knowledge map (CKM) is viewed as a digital twin of wireless channels, providing location-specific channel knowledge for environment-aware communications. A fundamental prob…