A massive multiple-input, multiple-output (mMIMO) downlink is considered with fixed wideband beams known as Grid of Beams (GoBs). The radio channel of a typical urban macro scenario will be shown to be sparse, and in combination with a linear maximum ratio combining beamforming method is used at the user equipment. Simulation results for urban macro cells show that reasonable spectral efficiencies are achieved with a moderate number of relevant channel components (RCCs) and accordingly limited feedback overhead for reporting of channel state information (CSI).
Performance Evaluation of Linear Beamforming Receiver for Large CoMP Sparse Massive MIMO Channel Matrices
2017-06-01
1303757 byte
Aufsatz (Konferenz)
Elektronische Ressource
Englisch