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当今车辆运行环境更加复杂,双移动节点,无线链路带宽不稳定以及链路级丢包较多是车载自组网的显著特点之一,而车载自组网无线链路质量,对其网络上层协议的设计具有重要意义。这里分析无线电波在车载自组网中的传播特点,提出一种以无线信道传播模型为基础,通过OMNET++来仿真车载自组网无线链路丢包率的方法。通过该方法可以方便、有效地仿真不同车辆运行环境下车载自组网的无线链路丢包率。
Nowadays, the running environment of vehicles is more complicated. Dual mobile nodes, unstable bandwidth of wireless links and more packet loss at the link level are one of the outstanding features of in-vehicle ad hoc networks. However, The design of the agreement is of great importance. Here the analysis of the characteristics of radio waves in vehicular ad hoc network propagation, proposed a wireless channel propagation model based on OMNET ++ to simulate the vehicular ad hoc network radio link packet loss rate. This method can simulate the packet loss rate of wireless link in vehicular ad hoc network under different vehicle operating conditions conveniently and effectively.