Masakazu YAMAGISHI
Takashi HIKAGE
Nobuaki KUNO
Mitsuki NAKAMURA
Wataru YAMADA
Yasushi TAKATORI
The aim of this study is to develop an accurate and reliable method of estimating propagation channels and propagation modelling to advance radio link design for next generation mobile communication such as fifth generation (5G) wireless systems and beyond 5G. It is reported that in the high frequency bands used for 5G, shadow fading is large as is loss due to human bodies.
This paper elucidated the effects of human body blockage on 26 GHz-band propagation characteristics in an indoor environment using state-of-the-art numerical simulation techniques. A novel method for estimating human body blockage characteristics based on large scale FDTD analysis was proposed. The electromagnetic field distributions inside an office environment created by a 26 GHz wireless transmitter were analyzed and the propagation characteristics were discussed comparing with conventional ray trace analysis. In order to estimate the effect of absorption by human bodies, the authors provided statistical analysis based upon the field distributions obtained throughout the whole interior of the room.
This paper clarifies the advantage of an estimation method using large scale FDTD analysis for indoor quasi-millimeter/millimeter wave propagation. Furthermore, the reduction in the signal strength due to human body blockage is, in the case of quasi-millimeter wave, evaluated based upon the simulation results of full 3D indoor propagation characteristics.
Due to the novelty and major contributions described above, this paper deserves the IEICE Best Paper Award.
