Fei Qi 0002 Yanhong Ju Songlin Sun Xiaojun Jing Yueming Lu BEM-Based Reconstruction of Time-Varying Sparse Channel in OFDM Systems. 1-5 2013 VTC Fall https://doi.org/10.1109/VTCFall.2013.6692115 conf/vtc/2013f db/conf/vtc/vtc2013f.html#QiJSJL13