Active User Detection and Channel Estimation via Fast ADMM. - Lijun Zhu 003; Kaihui Liu; Liangtian Wan; Lu Sun 004 (WCNC, 2023)

New Gridless Method-Based Channel Estimation for Millimeter Wave MIMO-OFDM Systems. - Lijun Zhu 003; Zheng Li; Ran Zhang; Zheng Chu 001; De Mi; Zhengyu Zhu 001; Gaojie Chen; Li Zhen (IEEE Commun. Lett., 2024)

Joint active user detection and channel estimation for massive machine-type communications: a difference-of-convex optimization perspective. - Lijun Zhu 003; Kaihui Liu; Liangtian Wan; Lu Sun 004; Yifeng Xiong (Frontiers Inf. Technol. Electron. Eng., 2025)

A Novel Gridless Uplink/Downlink Channel Estimation Method for Millimeter Wave MIMO-OFDM Systems. - Lijun Zhu 003; Yifeng Xiong; Zheng Li; Yingying Guan; Zheng Chu 001; Zhengyu Zhu 001; Pei Xiao 001; Chin-Liang Wang (IEEE Trans. Wirel. Commun., 2025)