Cross-Polarized Radio Propagation Measurement and Modelling in Temporal Domain for Factory Workshop Scenario

In this paper, we performed a measurement campaign at 3.5 GHz using two ±45° polarized antenna arrays in two typical industrial scenarios, the manufacturing district and workshop corridor. We obtain averaged power delay profiles (APDP) at a number of positions and fit the APDPs by power-decaying curves. We have found that the dense metallic facilities cause large excess delay of the multipath component arrival. On the other hand, we model the small-scale fading by Lognormal distribution. We also obtain root-mean-square delay spread (RMS-DS) and model it by Nakagami distribution. Futhermore, the positive correlation between RMS-DS and spatial separation distance between the transmitter and receiver is modeled by a linear function. Dense metallic facilities in workshops leads to complicated propagation environments. Channel coherent bandwidth and energy dispersion should be considered carefully in the design of wireless communication systems in industrial environments.