A Novel SRS-DMRS Unified Channel Estimation-Based Enhanced Downlink Beamforming in TDD Multiuser Massive MIMO-OFDM System
This paper proposes a novel dynamic beamforming (BF) technique exploiting unified channel estimation obtained from uplink demodulation reference signal (UL-DMRS) and sounding reference signal (SRS). More specifically, the conventional SRS-based dynamic BF, typically used for reciprocitybased downlink (DL) BF in time-di...