Performance Analysis of Millimeter-wave Based 5G Backhaul Links in City Environment

Millimeter-wave technology is the key technology for 5G wireless networks, for transmission links and also backhaul solutions. In this paper, trial measurements were conducted to investigate the performance of millimeterwave backhaul deployments in city environment. Backhaul links at various millimeter-wave frequencies in line-of-sight (LOS) path conditions were monitored over a period of 10 days, including 38 GHz, 72 GHz and 82 GHz. The performance of the backhaul link transmission and received signal level are analyzed over the test period. We also study the variations of signal propagation due to rain and compare the backhaul link performance in sunny and rainy days.