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A Software-Defined Radio for Future Wireless Communication Systems at 60 GHz

Duarte, L. ; Gomes, R. ; Ribeiro, C. ; Caldeirinha, R. F. S.

Electronics (Switzerland) Vol. 8, Nº 12, pp. 1490 - 1490, December, 2019.

ISSN (print): 2079-9292
ISSN (online):

Scimago Journal Ranking: 0,30 (in 2019)

Digital Object Identifier: 10.3390/electronics8121490

This paper reports on a complete end-to-end 5G mmWave testbed fully reconfigurable
based on a FPGA architecture. The proposed system is composed of a baseband/low-IF processing
unit, and a mmWave RF front-end at both TX/RX ends. In particular, the baseband unit design
is based on a typical agile digital IF architecture, enabling on-the-fly modulations up to 256-QAM.
The real-time 5G mmWave testbed, herein presented, adopts OFDM as the transmission scheme
waveform, which was assessed OTA by considering the key performance indicators, namely EVM
and BER. A detailed overview of system architecture is addressed together with the hardware
considerations taken into account for the mmWave testbed development. Following this, it is
demonstrated that the proposed testbed enables real-time multi-stream transmissions of UHD video
content captured by nine individual cameras, which is in fact one of the killing applications for 5G.