Verification of an intelligent ray launching algorithm in indoor environments in the Ka‐band

This paper presents the verification of indoor propagation channel simulations based on an intelligent ray launching algorithm (IRLA) in the Ka-band of the millimeter-wave (mmWave) spectrum in various indoor environments, including a classroom, an office, and a corridor, by radio channel measurements. Power delay profiles (PDPs), path loss, and root-mean-square (RMS) delay spreads were obtained from both the simulation results and the measurement results. Moreover, parameters of two site-general path loss models, the close-in free space reference distance path loss model and the floating-intercept path loss model, were estimated based on the measured and simulated path loss. The comparison between the simulation results and the measurement results indicates that the IRLA-based simulation can accurately describe the main characteristics of the indoor propagation channel in the Ka-band.