精品文档---下载后可任意编辑LTe-A 中 3DMIMO 信道建模和 3D 波束赋型技术的讨论中期报告摘要：随着移动通信系统对高速率和高可靠性的要求越来越高，3D MIMO技术已经成为讨论的热点之一。本文针对 LTE-A 系统中 3D MIMO 信道建模和 3D 波束赋型技术进行了讨论，并给出了中期报告。首先，对 3D MIMO 信道建模进行了分析。针对多径衰落信道，采纳基于 BEM 的 3D 地形模型进行建模。为了更准确地模拟 3D MIMO 信道，文章采纳了基于射线跟踪的信道模拟方法，并结合了 3D 建模技术和天线模型技术。其次，对 3D 波束赋型技术进行讨论。在 3D MIMO 系统中，采纳波束赋型技术可以提高信道容量和传输效率。文章对多个波束赋型算法进行了比较讨论，包括线性波束赋型、最大比合成波束赋型和最小误差均衡波束赋型等。最后，通过仿真实验对所提出的方法进行了验证。仿真结果表明，使用 3D MIMO 技术和波束赋型技术可以显著提高系统性能，并且所提出的方法在信道容量和传输效率上都表现出了良好的性能。关键词：LTE-A、3D MIMO、信道建模、波束赋型Abstract:With the increasing demand for high rate and reliability in mobile communication systems, 3D MIMO technology has become one of the hot research topics. This paper focuses on the research of 3D MIMO channel modeling and 3D beamforming technology in LTE-A system, and presents the midterm report.Firstly, the 3D MIMO channel modeling is analyzed. For multi-path fading channels, a 3D terrain model based on BEM is used for modeling. In order to simulate 3D MIMO channel more accurately, the paper adopts channel simulation method based on ray tracing, and combines 3D modeling technology and antenna model technology.Secondly, the 3D beamforming technology is studied. In the 3D MIMO system, beamforming technology can improve channel capacity and transmission efficiency. The paper 精品文档---下载后可任意编辑compares several beamforming algorithms, including linear beamforming, maximum ratio combining beamforming and minimum mean square error beamforming.Finally, the proposed method is verified by simulation experiments. Simulation results show that using 3D MIMO technology and beamforming technology can significantly improve system performance, and the proposed method performs well in channel capacity and transmission efficiency.Keywords: LTE-A, 3D MIMO, channel modeling, beamforming.
