基于三维射线跟踪模型的无线网络仿真研究

Research on Wireless Network Simulation Based on 3D Ray Tracing Model

无线电磁传播模型是无线网络仿真的基础,传播模型的优劣直接决定着无线网络仿真对网络规划方案、评估等方面的作用。而三维射线跟踪模型则被认为是当今无线网络仿真向精细化、准确化、科学化发展方向的主流趋势,它的引入将对无线网络仿真带来革命性变革。基于此,对三维射线跟踪模型原理、技术特征、适用环境及其对地图的要求、对地图结果的影响等方面做了详细论述,并通过CW发射方式及DT实地试验测试对提升结果进行了认真分析对比,还对其引入所带来的有关问题进行了详细分析。

The propagation model is the basis of wireless network simulation, which directly decides the wireless network simulation on the function of network planning, evaluation. And 3D ray tracing model is considered to be the mainstream trend of a wireless network simulation to fine, accurate and scientific development direction, the introduction of which will bring revolutionary change to the wireless network simulation. Based on the above, the 3D ray tracing model principle, technical characteristics,application environment and its requirements on the map, and the influence of the result of the map are given in detail. It compares the improving results by CW. It also introduces the related problems in detail.