Millimeter-Wave Channel State Information Acquisition on PXI-Based Testbed

This paper introduces mmWave channel state information (CSI) acquisition testbed for the demonstration of several algorithms in mmWave communications research fields. The testbed comprises multiple field-programmable gate arrays (FPGA), a radio frequency (RF) converter, and a phased array antenna for mmWave signal generation and high-speed data processing. We also propose system design and implementation for the control of mmWave CSI acquisition testbed by NI LabView programming software. The experimental results show that received mmWave pilot signal data is adequately accomplished via the proposed testbed, which is an important prerequisite for channel estimation.