| The wide band characteristics of millimeter wave can be applied for solving many problems on wide band wireless access, and thus the millimeter wave band particularly 60 GHz band is considered as one of the most promising short distance wireless communication technology. Moreover, the interior electromagnetic fields become more and more complex in indoor short-range environment, due to the effects of indoor scenarios, atmospheric absorption, and roughness. So the study on the propagation characteristics of 60 GHz frequency band millimeter wave in the indoor short-range environments has important value in theory and practice. In this thesis, the propagation characteristics of millimeter wave in indoor short-range environment are simulated and analyzed based on the method of SBR/Image. The propagation characteristics has been gotten by simulation and modeling, such as the received power, the multipath propagation and the root mean square delay spread. The theoretical support can be provided by these works for the system design of the millimeter-wave communication in indoor short-range environment. The main contents and contributions of this thesis are as follows:(1) The basic concepts, characteristics, application and development of millimeter wave have been overviewed, and the millimeter wave propagation characteristics have been introduced, including atmospheric absorption and scattering attenuation characteristics of the reflected surface roughness characteristics, which focus on the basic concept of SBR/Image and its implementation process.(2) The indoor environment in the known literature is modeled and simulated. The simulation results and measurement results are compared in the literature, and verify the validity and accuracy of the Wireless InSite software based on the method of SBR/Image to predict millimeter wave propagation characteristics in indoor complex environment.(3) The propagation characteristics of 60 GHz band millimeter-wave complex in indoor office environment are simulated and analyzed by the method of SBR/Image. Firstly, the maximum number of reflections is discussed. Then, the effects of diffraction and transmission for the 60 GHz band millimeter-wave propagation characteristics are discussed, and the average arrival direction angle propagation parameters are analyzed. Finally, considering the attenuation characteristics under atmospheric absorption of the situation, the simulation compared the receiving power and RMS delay spread of the 2.4GHz between the 60 GHz, which focus on the received power and RMS delay spread of millimeter wave propagation indoors due to different roughness.(4) Considering the practicability of the simulation, 60 GHz band millimeter-wave propagation characteristics are simulated based on the method of SBR/Image in the indoor complex home environment, and the results of statistical data are analyzed. The propagation characteristics of the LOS and NLOS environments are discussed. The impact of the different polarizations on the RMS delay spread of the receiving antennas and the effect of different roughness on the received power and RMS delay spread are analyzed. |
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