三维空间域统计信道模型及其多天线系统

Three dimensional space domain statistical channel model and multi-antenna systems

针对散射体密度均匀与移动台(mobile station,MS)附近无建筑物的情形,建立一个适用于室内微蜂窝环境的3D空间信道模型。通过此几何信道模型,可以正确给出在无线信道中信号在MS处的到达角与到达时间的概率密度函数解析表达式,能够将其应用于多入多出系统信道性能仿真中。将该模型的数值仿真结果与其它文献中信道模型仿真结果相比较,比较结果表明,参数估计结果符合理论和经验,该模型适用于微小区移动通信环境,拓展了统计信道模型的研究与应用,为仿真无线通信系统提供了有力的工具。

Considering the mobile communication environments where the scatterer is uniformly distributed and scatterers around mobile station almost do not exist,a three dimensional space statistical channel model was proposed which was applied in indoor microcell environment.The important parameters of wireless channel were accurately described using the model,such as the angle of arrival and time of arrival at the mobile station.In addition,the statistical properties were applied to the performance simulation of the multiple input multiple out system.The proposed model was compared with multipath fading channel models in other literatures.The numerical simulation results show that channel parameter estimation results of the model accord with the theory and experience,which expands the research and application of statistical channel model and provides powerful tools for the simulation of wireless communication system.