Research On Indoor Wireless Channel Modeling Of 15GHz Based On Measurement

With the rapid development of wireless communication, the number of mobile communication data show a quick growth.With huge amounts of equipments access to the wireless network and all kinds of new business and new applications come forth continuously, the fifth generation mobile communication(5G) technology oriented the next generation communication has been proposed in recent years.At present the spectrums under 6GHz has been very crowded, so,there is almost no continuous spectrums to be used to support 5G system.However above 6GHz,there are rich continuous broadband spectrums. Therefore, the system in higher frequencies and larger bandwidth system have be given more and more attention.As one of the candidates for the 5G,the characteristics of wireless channel in 15 GHz is of significance to study.As the medium of mobile communication, the characteristics of the wireless channel directly determine the quality of mobile communication.It is necessary to understand the characteristics of wireless channel and to establish the corresponding channel model,so that people can transmit information more effectively and reliably.Indoor is the main scenarios of data business currently,and is also the most promising data application scenarios in the future IMT-Advanced.In this thesis,it is needful to do research on the features of the indoor wireless channel in 15 GHz.In this thesis, the time domain measurement system based on PN sequence is used to research the indoor wireless channel measurement and modeling in 15 GHz, mainly about the path loss and the relationship between receving power and the antenna angel.Firstly,the hardware platform and software platform are introduced, and the parameters of them are reasonably configured.After debugging successfully,the measurement in the indoor corridor and the conference room and the library were carried on to study the characteristics of channel.Finally through processing the measured data of each environment, this thesis analyzes the characteristics of channel of the three environments.For the indoor corridor environment, large scale decline characteristics and the relationship between receive power and the horizontal angel of receiveing antenna and the azimuth angle of transmitting antenna are analysed.For the conference room, this thesis get the path loss fitting curve and the delay power spectrums of the line-of-sight scenarios and the non-line-of-sight scenarios. For the library,the path loss characteristics is analyzed, and the relationship between path loss and the height of receiving antenna is introduced.The above results can be used as a reference of the network planning of the fifth generation of mobile communication and of the evalution and design of the future wireless communication.