车对车及毫米波点对点无线信道建模理论与方法
发布时间：2018-07-27 19:47
【摘要】：面向2020年及未来,第五代无线通信系统(The 5th Generation Mobile Com-munication,5G)将解 决多样化应用场景下差异化性能指标带来的挑战。从 5G 的主要技术场景出发,5G不仅需要满足传统移动通信的多样化业务需求,还需要满足低时延高可靠场景的车对车通信和热点区域海量大连接场景的毫米波点对点通信的特殊应用需求。5G新型应用场景的建设离不开车对车及毫米波点对点通信系统的支撑,而二者通信系统的设计则需立足于对典型车对车及毫米波点对点无线信道的深入研究。物理无线信道作为通信发生的媒介,其特性极大地影响着通信系统的性能。因此,在车对车及毫米波点对点通信系统的设计中,需要用信道模型对复杂的无线信道加以描述。尽管人们已经对车对车及毫米波点对点无线信道建模理论与方法开展了大量研究,但是现有研究仍然存在下述局限:从科学研究上看,现阶段针对车对车及毫米波点对点无线信道的研究无法揭示相关场景下电波传播的基本规律;从建模理论与方法上看,现阶段针对车对车及毫米波点对点无线信道建模理论与方法的研究还不足以为系统设计者提供完整的信道模型库。针对上述问题,本文围绕车对车及毫米波点对点通信场景的无线信道建模理论与方法进行了综合性的研究。本文主要工作如下:1)车对车通信场景时变非平稳相关散射信道建模:针对车对车无线信道时变非平稳的特点,基于一阶二状态马尔科夫链,提出了车对车时变非平稳信道模型,描述车对车无线信道的多径生灭过程;针对车对车无线信道相关散射的特点,以Cholesky分解为基础,提出高斯、韦伯和均匀分布相关系数之间的转换关系,建立了车对车相关散射信道模型,弥补了相关信道建模理论研究的不足;以实际测量数据为基础,验证了车对车时变非平稳相关散射信道模型的准确性。2)车对车通信场景三维散射体簇信道建模:针对车对车无线信道散射体快速时变的特点,以泊松分布的散射体簇为基础,提出可视区域的概念,建立了车对车时变非平稳信道模型,描述车对车无线信道的散射体簇动态变化过程;针对车对车无线信道散射体簇建模理论研究的不足,以电波传播的多径几何结构为出发点,建立了车对车多输入多输出(Multiple-Input Multiple-Output,MIMO)信道模型,促进了车对车动态信道建模理论的进一步发展;以实际测量数据为基础,验证了车对车三维散射体簇信道模型的准确性。3)毫米波点对点通信场景衰落信道建模和色散信道建模:针对毫米波点对点无线信道电波传播特性研究的不足,开展了30 GHz频段、1 GHz超宽带,室内和室外场景的毫米波点对点无线信道测量,建立了毫米波点对点室内和室外场景衰落信道模型;针对毫米波点对点无线信道时域和空域特性研究的不足,采用旋转接收天线的测量方式扫描不同方向的水平接收信号,萃取时域和空域典型信道参数,建立了毫米波点对点室内和室外场景色散信道模型,提升了信道参数萃取以及模型建立的科学性。4)毫米波点对点通信场景规则几何信道建模:针对毫米波点对点无线信道几何建模理论研究的不足,提出了二维双圆几何模型,描述毫米波点对点无线信道二维分布的散射体;在此基础上,进而提出了三维双圆柱和三维双球规则几何模型,建立了毫米波点对点MIMO信道模型;深入研究了毫米波点对点无线信道空时相关特性,为后续毫米波点对点无线信道模型的扩展和应用奠定了理论基础。综上所述,本文围绕车对车及毫米波点对点无线信道建模理论与方法开展了研究。在研究对象层面为车对车及毫米波点对点通信在5G中的应用提供了电波传播预测工具;在方法论层面为不同场景中的无线信道建模提供了可移植和转化的方法;在应用层面为车对车及毫米波点对点通信系统的网络规划、信息可靠传输奠定了基础。
[Abstract]:In the 2020 and the future, the fifth generation wireless communication system (The 5th Generation Mobile Com-munication, 5G) will solve the challenge of differential performance indicators in the diversified application scenario. From the main technical scene of 5G, 5G not only needs to meet the diversity of traditional mobile communications, but also needs to meet the low delay and high reliability. The special application of the scene car to the vehicle communication and the large mass connection scene of the hot area, the millimeter wave point to point communication,.5G new application scene is built on the support of the car and the millimeter wave point to point communication system, while the design of the two communication system should be based on the typical car pair and the millimeter wave point to point wireless channel. The characteristics of the physical wireless channel, as the medium of communication, greatly affect the performance of the communication system. Therefore, in the design of the vehicle and the millimeter point to point communication system, the channel model needs to be used to describe the complex wireless channel. Although the vehicle and the millimeter wave point to point wireless channel are built. Model theory and method have carried out a lot of research, but the existing research still has the following limitations: from the scientific research, the research on car to car and millimeter wave point to point wireless channel can not reveal the basic rules of radio wave propagation in the related scene at present. From the modeling theory and square method, the current stage is aimed at car to car and millimeter wave point pair. The research on the theory and method of point wireless channel modeling is not sufficient to provide a complete channel model library for the system designers. In this paper, the theory and method of wireless channel modeling for car to vehicle and millimeter point to point communication scene are comprehensively studied in this paper. The main work of this paper is as follows: 1) the time change of vehicle communication scene is changed. Nonstationary correlation scattering channel modeling: Based on the characteristic of vehicle to vehicle wireless channel, based on the first order two state Markoff chain, a vehicle to vehicle time-varying non stationary channel model is proposed to describe the multipath generation and death process of the vehicle to the vehicle wireless channel. Based on the characteristics of the car to vehicle radio channel correlation scattering, the Cholesky decomposition is proposed. Based on the transformation relationship between Gauss, Webb and the uniform distribution correlation coefficient, the model of vehicle to vehicle correlation scattering channel is established, which makes up for the insufficiency of the related channel modeling theory. Based on the actual measurement data, the accuracy of the vehicle's time-varying non stationary correlation scattering channel model.2) is verified. Channel modeling: in view of the fast and time-varying characteristics of the vehicle's wireless channel scatterer, based on the Poisson distributed scatterer cluster, the concept of the visible region is proposed. The time-varying non stationary channel model of car to car is established, and the dynamic change process of the scatterer cluster in the vehicle's wireless channel is described, and the theory of the vehicle to the vehicle's wireless channel scatterers is modeled. Based on the multipath geometric structure of the wave propagation, the model of Multiple-Input Multiple-Output (MIMO) channel is established, which promotes the further development of the vehicle dynamic channel modeling theory. Based on the actual measurement data, the model of the vehicle's three-dimensional scattering cluster channel model is verified. .3) millimeter wave point to point communication scene fading channel modeling and dispersion channel modeling: Aiming at the shortage of radio wave propagation characteristics of millimeter point to point wireless channel, 30 GHz frequency band, 1 GHz ultra wideband, indoor and outdoor millimeter wave point to point wireless channel measurement are carried out, and the attenuation of indoor and outdoor scene of millimeter wave point is established. In view of the shortage of the time domain and airspace characteristics of the millimeter wave point to point wireless channel, it uses the rotating receiving antenna to scan the horizontal receiving signals in different directions, extracts the typical channel parameters in the time domain and the airspace, and establishes a scattering channel model of the millimeter wave point to point indoor and ventricular outfield, and improves the channel parameter extraction. The scientific.4 model established by the model) modeling of regular geometry channel of millimeter point to point communication scene: Aiming at the shortage of geometric modeling theory of millimeter wave point to point wireless channel, a two-dimensional double circular geometric model is proposed to describe the two-dimensional distribution of the millimeter wave point to point wireless channel. On this basis, the three-dimensional double circle is proposed. The millimeter wave point to point MIMO channel model is established by the column and the three-dimensional double sphere rule geometric model, and the space-time correlation characteristics of the millimeter wave point to point wireless channel are deeply studied. It lays the theoretical foundation for the extension and application of the follow-up millimeter wave point to point wireless channel model. In summary, this paper focuses on the vehicle and the millimeter wave point to point wireless channel. Modeling theory and method have been studied. At the level of research object, it provides an electric wave propagation prediction tool for vehicle and millimeter wave point to point communication in 5G, and provides a portable and transformation method for wireless channel modeling in different scenarios; at the application level, it is the train to car and millimeter wave point on point communication system. Unified network planning lays the foundation for reliable transmission of information.
【学位授予单位】：北京交通大学
【学位级别】：博士
【学位授予年份】：2017
【分类号】：TN929.5
本文编号：2148941
[Abstract]:In the 2020 and the future, the fifth generation wireless communication system (The 5th Generation Mobile Com-munication, 5G) will solve the challenge of differential performance indicators in the diversified application scenario. From the main technical scene of 5G, 5G not only needs to meet the diversity of traditional mobile communications, but also needs to meet the low delay and high reliability. The special application of the scene car to the vehicle communication and the large mass connection scene of the hot area, the millimeter wave point to point communication,.5G new application scene is built on the support of the car and the millimeter wave point to point communication system, while the design of the two communication system should be based on the typical car pair and the millimeter wave point to point wireless channel. The characteristics of the physical wireless channel, as the medium of communication, greatly affect the performance of the communication system. Therefore, in the design of the vehicle and the millimeter point to point communication system, the channel model needs to be used to describe the complex wireless channel. Although the vehicle and the millimeter wave point to point wireless channel are built. Model theory and method have carried out a lot of research, but the existing research still has the following limitations: from the scientific research, the research on car to car and millimeter wave point to point wireless channel can not reveal the basic rules of radio wave propagation in the related scene at present. From the modeling theory and square method, the current stage is aimed at car to car and millimeter wave point pair. The research on the theory and method of point wireless channel modeling is not sufficient to provide a complete channel model library for the system designers. In this paper, the theory and method of wireless channel modeling for car to vehicle and millimeter point to point communication scene are comprehensively studied in this paper. The main work of this paper is as follows: 1) the time change of vehicle communication scene is changed. Nonstationary correlation scattering channel modeling: Based on the characteristic of vehicle to vehicle wireless channel, based on the first order two state Markoff chain, a vehicle to vehicle time-varying non stationary channel model is proposed to describe the multipath generation and death process of the vehicle to the vehicle wireless channel. Based on the characteristics of the car to vehicle radio channel correlation scattering, the Cholesky decomposition is proposed. Based on the transformation relationship between Gauss, Webb and the uniform distribution correlation coefficient, the model of vehicle to vehicle correlation scattering channel is established, which makes up for the insufficiency of the related channel modeling theory. Based on the actual measurement data, the accuracy of the vehicle's time-varying non stationary correlation scattering channel model.2) is verified. Channel modeling: in view of the fast and time-varying characteristics of the vehicle's wireless channel scatterer, based on the Poisson distributed scatterer cluster, the concept of the visible region is proposed. The time-varying non stationary channel model of car to car is established, and the dynamic change process of the scatterer cluster in the vehicle's wireless channel is described, and the theory of the vehicle to the vehicle's wireless channel scatterers is modeled. Based on the multipath geometric structure of the wave propagation, the model of Multiple-Input Multiple-Output (MIMO) channel is established, which promotes the further development of the vehicle dynamic channel modeling theory. Based on the actual measurement data, the model of the vehicle's three-dimensional scattering cluster channel model is verified. .3) millimeter wave point to point communication scene fading channel modeling and dispersion channel modeling: Aiming at the shortage of radio wave propagation characteristics of millimeter point to point wireless channel, 30 GHz frequency band, 1 GHz ultra wideband, indoor and outdoor millimeter wave point to point wireless channel measurement are carried out, and the attenuation of indoor and outdoor scene of millimeter wave point is established. In view of the shortage of the time domain and airspace characteristics of the millimeter wave point to point wireless channel, it uses the rotating receiving antenna to scan the horizontal receiving signals in different directions, extracts the typical channel parameters in the time domain and the airspace, and establishes a scattering channel model of the millimeter wave point to point indoor and ventricular outfield, and improves the channel parameter extraction. The scientific.4 model established by the model) modeling of regular geometry channel of millimeter point to point communication scene: Aiming at the shortage of geometric modeling theory of millimeter wave point to point wireless channel, a two-dimensional double circular geometric model is proposed to describe the two-dimensional distribution of the millimeter wave point to point wireless channel. On this basis, the three-dimensional double circle is proposed. The millimeter wave point to point MIMO channel model is established by the column and the three-dimensional double sphere rule geometric model, and the space-time correlation characteristics of the millimeter wave point to point wireless channel are deeply studied. It lays the theoretical foundation for the extension and application of the follow-up millimeter wave point to point wireless channel model. In summary, this paper focuses on the vehicle and the millimeter wave point to point wireless channel. Modeling theory and method have been studied. At the level of research object, it provides an electric wave propagation prediction tool for vehicle and millimeter wave point to point communication in 5G, and provides a portable and transformation method for wireless channel modeling in different scenarios; at the application level, it is the train to car and millimeter wave point on point communication system. Unified network planning lays the foundation for reliable transmission of information.
【学位授予单位】：北京交通大学
【学位级别】：博士
【学位授予年份】：2017
【分类号】：TN929.5
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