Study On The Propagation Characteristics Of 60GHz Millimeter Wave In Indoor Environment Considering Occlusion Effect Of Human Body

Due to the huge success of 4G promotion,enterprises are stimulated to invest in 5G communication technology.The deployment of 5G communications will provide users with higher upload and download rates.Millimeter-wave wideband characteristics can effectively solve the problem of wireless access to high-speed broadband in wireless communications.The 60 GHz millimeter wave is getting more and more attention because it can provide 7GHz license-free band width.In the millimeter-wave propagation process,human beings as large-sized objects have an important influence on the propagation of millimeter waves in the room.People's activities are more frequent in indoor environments.In this thesis,the ray tracing method is used to study the propagation characteristics of the electric wave in the indoor environment.The actual measurement and simulation are carried out to provide an effective theoretical basis for the network planning and design of millimeter wave indoor communication.The content of this article is as follows:(1)The status quo of research on the propagation of electric waves considering the effect of human body shielding have been summarized and analyzed.Two important channel propagation parameters that reflect the propagation characteristics of the indoor channel are analyzed.The method of SBR/IM has been briefly described.(2)Correctness verification: The corridor environment with human body movement was simulated,and the simulation results were compared with the actual literature measurement results.At the same time,the characteristics of the channel in the tunnel were measured,and the simulation results were compared with the measured results.And the feasibility and of using the SBR/IM method to study the propagation characteristics of the electric wave shielded by human body are correct.(3)The distribution of received power and delay spreads in corridor has been studied in different states.Emphasis is placed on the analysis of the received power and delay spread.This thesis studied the effects of propagation mechanisms such as direct,reflection,diffraction,and transmission.(4)This thesis has studied the relations between the number of people standing in the line of sight in receive power and delay spread.(5)The propagation characteristics of the 60 GHz millimeter wave in the office environment with office workers sitting and standing have been studied.And it focused on the two parameters of delay spread and received power.(6)In the office environment,the thesis arranges the office person in the aggregated state and dispersed state to study the characteristic of 60 GHz millimeter-wave propagation.This paper changed the position of the receivers to study the effects of human body occlusion.