CrossWave射线模型效果评估及无线仿真模型选取策略

Evaluation of CrossWave Ray-Tracing Propagation Model Effect and Selection Strategy of Wireless Simulation Model

传播模型对无线网络规划而言非常重要,但使用传统传播模型不仅需要花费大量人力物力进行CW测试,而且不论采用传统经验或者半经验模型进行校正后的模型准确性及场景通用性也都不高。对CrossWave射线传播模型在无线网仿真中的应用效果进行评估,在城区及平原农村场景下将DT与仿真效果进行对比,得出采用射线模型仿真效果的可靠性结论,丘陵及山区农村场景下,分别采用CrossWave射线模型与传统经验模型进行仿真,对比不同模型的仿真效果可以得出射线传播模型在无线网仿真中的优越性及合理性结论,在此基础上,给出传播模型的选取建议及基于射线模型的无线仿真配置方法,从模型选用的角度提升无线网络仿真对网络规划的参考价值。

Propagation model is very important for wireless network planning. However, the use of traditional propagation models not only requires a lot of manpower and material resources to carry out CW tests, but also suffers the low accuracy and scenario universality of the revised model based on the traditionally empirical or semi-empirical model. The application effect of Cross Wave Ray-Tracing propagation model in wireless network simulations is evaluated. In the scenarios of urban and rural plain, the DT value is compared with simulation effects to conclude that the effect of CrossWave Ray-Tracing model is reliable. In the scenarios of hill and mountainous rural area, the Cross Wave Ray-Tracing model and the traditionally empirical model are simulated, and their simulation effects are compared to conclude that the CrossWave Ray-Tracing model is optimal and feasible in wireless network simulations. Also, the selection suggestion of propagation model and the wireless simulation configuration method based on the CrossWave Ray-Tracing model are presented. From the perspective of model selection, the reference value of wireless network simulations to the network planning can be enhanced.