A real-time mmWave MIMO communication system
This mmWave communication system has the following features
Real-time video streaming
Real-time beam steering at Tx and Rx
Support 2x2 MIMO transmission
Support Tx and Rx synchronization
This video demonstrates the system operation at 28 GHz. It shows how the hardware components interact in real time under the high-frequency configuration, highlighting the signal processing flow and system responsiveness in a millimeter-wave environment.
A real-time mmWave communication testbed (Out of Date)
As the spectrum under 6 GHz is being depleted, pushing wireless communications onto millimeter wave (mmWave) frequencies is a trend that promises multi-Gbps data rate. mmWave is therefore considered as a key technology for 5G wireless systems and has attracted tremendous research efforts. The booming research on mmWave necessitates a reconfigurable mmWave testbed that can be used to prototype and validate new research ideas in real wireless environments. In this paper, we develop an easy-to-use mmWave testbed using commercial off-the-shelf devices (USRP and 60 GHz Tx/Rx RF frontends) and open-source software package (GNU Radio). A key component of our testbed is a phase noise cancellation (PNC) scheme, which can significantly reduce the phase noise at the receiver by leveraging the pilot signal inserted at the transmitter. We have implemented a simplified version of IEEE 802.11 PHY on this mmWave testbed. Experimental results show that, with the PNC scheme, our testbed can achieve -20 dB EVM data transmission for real-time video streaming.