A Unified Transmission Strategy for TDD/FDD Massive MIMO Systems With Spatial Basis Expansion Model - Xie, Hongxiang; Gao, Feifei; Zhang, Shun; Jin, Shi (IEEE transactions on vehicular technology, 2017)
Keywords: Angle reciprocity; Antenna arrays; Channel estimation; Data communication; Data transmission; direction of arrival (DOA); discrete Fourier transform (DFT); Discrete Fourier transforms; Frequency division duplexing; Linear antenna arrays; massive multiple input multiple output (MIMO); Mathematical models; MIMO; MIMO (control systems); Pilot training; Scheduling; Signal processing; spatial basis expansion model (SBEM); Spatial data; Training