1 research outputs found
JCR70: A Low-Complexity Millimeter-Wave Proof-of-Concept Platform for A Fully-Digital MIMO Joint Communication-Radar
A fully-digital wideband joint communication-radar (JCR) with a
multiple-input-multiple-output (MIMO) architecture at the millimeter-wave
(mmWave) band will enable high joint communication and radar performance with
enhanced design flexibility. A quantized receiver with few-bit
analog-to-digital converters (ADCs) will enable a practical JCR solution with
reduced power consumption for futuristic portable devices and autonomous
vehicles. In this paper, we present a joint communication-radar
proof-of-concept platform, named JCR70, to evaluate and demonstrate the
performance of these JCR systems using real channel measurements in the 71-76
GHz band. We develop this platform by extending a mmWave communication set-up
with an additional full-duplex radar receiver and by capturing the MIMO JCR
channel using a moving antenna on a sliding rail. To characterize the JCR
performance of our developed tested, we conduct several indoor and outdoor
experiments and apply traditional as well as advanced processing algorithms on
the measured data. Additionally, we compare the performance of our JCR70
platform with the INRAS Radarbook, which is a state-of-the-art automotive radar
evaluation platform at 77 GHz. The results demonstrate that a quantized
receiver with 2-4 bit ADCs generally performed quite close to the
high-resolution ADC for a signal-to-noise ratio of up to 5 dB. Our JCR70
platform with a fully digital JCR waveform at 73 GHz and 2 GHz bandwidth
achieved higher resolution capability than the Radarbook due to higher
bandwidth and larger synthesized antenna aperture.Comment: 14 page