3 papers
cs.IT2017
Low-Complexity Hybrid Beamforming for Massive MIMO Systems in Frequency-Selective Channels
Sohail Payami, Mathini Sellathurai, Konstantinos Nikitopoulos
Hybrid beamforming for frequency-selective channels is a challenging problem as the phase shifters provide the same phase shift to all of the subcarriers. The existing approaches s…
cs.IT2017
Hybrid Beamforming with Reduced Number of Phase Shifters for Massive MIMO Systems
Sohail Payami, Mir Ghoraishi, Mehrdad Dianati +1
In this paper, two novel hybrid beamforming methods are proposed to reduce the cost and power consumption of hybrid beamformers with subconnected phase shifter network structure in…
cs.IT2016
Hybrid Beamforming for Large Antenna Arrays with Phase Shifter Selection
Sohail Payami, Mir Ghoraishi, Mehrdad Dianati
This paper proposes an asymptotically optimal hybrid beamforming solution for large antenna arrays by exploiting the properties of the singular vectors of the channel matrix. It is…