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LTE网络环境下,基站的覆盖范围一般都是圆形的.为了更加准确地再现实际场景,本文利用NS3平台上以矩形为边界的随机漫步模型为基础,改进并仿真出了一种以圆形为边界的随机漫步模型.首先通过NS3平台上的矩形模型,创建一个以矩形中心为圆心,以矩形边长为直径的圆形模型.当用户运动到圆形边界时,让用户始终与圆半径保持一定角度进行反弹,从而实现用户始终保持在圆形区域内运动.最后,本文在NS3平台上利用该移动模型对LTE网络的切换性能进行了仿真.仿真结果的正确性表明了该模型的实用性.
LTE network environment, the base station coverage is generally round.In order to reproduce the actual scene more accurately, this paper uses the NS3 platform based on the rectangular boundary of the random walk model to improve and simulate a circular As the boundary of the random walk model.First, through the rectangular model on the NS3 platform to create a circle centered on the center of the rectangle, the length of the rectangle with the diameter of the circle when the user moves to the circular boundary, allowing users to always circle radius Maintain a certain degree of rebound, so as to keep the user moving in a circular area.Finally, the paper uses the mobile model to simulate the switching performance of LTE network on the NS3 platform.The correctness of the simulation results shows that the model is practical Sex.