Beamforming Designs for Low-Power Transceiver Structures in Large-Scale MIMO Systems

The thesis studies efficient transceiver processing in future MIMO communications using large smart antenna antenna arrays, which are crucial in enhancing the capacity and coverage of future 6G networks. Two main research questions have been addressed. One focuses on efficient beamforming algorithms and architecures in wideband millimeter band transmission where the antenna array responses vary over the used signal bandwidth. The other focuses on how to apply efficient low resolution data converters to reduce the processing complexity and power consumption. The thesis results enable improved energy efficiency of communcations and reduced complexity of the transceivers. The solutions are particularly effective for millimeter-wave and terahertz frequencies of interest for the next-generation wireless networks.