摘要：

现有的车联网性能评测中缺少综合的网络性能评价指标,不能较好地综合评价网络性能状况。为此,以树莓派为控制核心,在Linux系统下开发一种车联网通信测试系统。采用网络断层扫描技术和主动探测方式测量往返时延、丢包率和时延抖动等关键指标。参考3GPP发布的 车联网性能指标要求,使用综合指标评价方法对网络性能做出评价和比较,从而反映网络整体的性能状况。实验结果表明,该车联网测试分析系统能够有效地对车联网环境下的LTE网络性能进行测试和评估。

关键词: 树莓派, 车联网, 网络性能测试, 主动测量, 网络断层扫描, 评价指标

Abstract:

The lack of comprehensive network performance evaluation indicator in the of car network cannot provide a comprehensive evaluation of network performance.Therefore,the research centered on the raspberry pi as the control core and developes a car network communication test system under the Linux system.The key indicators such as round-trip delay,packet loss rate,and delay jitter were measured using network tomography and active detection.With reference to the car network performance indicator requirements issued by 3GPP,the comprehensive indicator evaluation method is used to evaluate and compare the network performance so as to reflect the overall network performance status.Experimental results show that the car network test and analysis system can effectively test and evaluate the LTE network performance in the car networking environment.

Key words: raspberry pi, car network, network performance test, active measurement, network tomography, evaluation indicator

中图分类号: 

• TP391