Research On Statistics Characteristics Of Indoor Short-distance Wireless Channel

With the popularity of satellite communications and cellular mobile communication applications, short-distance radio wave coveration as the core of things connected more and more aroused the attention of the industry. Variety of low-power, short-distance wireless communication technology in the field of production process, distribution process, intelligent cognitive and family and social informationization play an increasingly important role. In the technology development and system design process, an accurate and adaptive channel simulation device not only can help researchers understand the channel characteristics and develop a new technology according to the channel characteristics, but also can verify the effectiveness of the technology, evaluation and estimation of network performance, which is an indispensable tool for the field of wireless communications.In this study, starting from the application environment and the minimum technical requirements, for the lack of existing research results that establishment of an indoor wireless channel model based on radio wave propagation plane, combining theoretical derivation and physical measurement, the statistical model of indoor wireless channel is accurately measured. The main works and contributions of the thesis include:(1) The study of application environment and establishment of minimum technical requirementsIt is very important to confirm the facts of the environment, because the targeted statistics results will be got only by defining the statistics elements of environment. Moreover, the results can be compared, referred, repeated and certificated.(2) The statistical analysis of measurement data and construction of spreading model of indoor wireless channelTo study the characteristics of short-distance wireless wave, extract the parameter of wireless channel model, build wireless channel model and analyze the statistics characteristics of short-distance wireless channel.(3) The implementation of emulatorThe implementation of emulator which refers to decadency, multipath and transmission rate is considered. The emulator is convenient for technology development and project simulation.Based on the above work, the conditions of application environment and the minimum technical requirements is studied, a test system of short-range wireless channel is built, the statistical data of the spatial distribution of the main short-range wireless communication signal is measured, and the channel model is established by combining theoretical derivation and physical measurement which will be more in line with the indoor environment.