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ns-3中UDP饱和流发包时间间隔设置最合理值

news 来源：原创 2025/4/27 5:25:21

ns3的官方手册很全，相关书籍也是有的，官网先贴在这里：

ns-3 | a discrete-event network simulator for internet systemsa discrete-event network simulator for internet systemshttps://www.nsnam.org/相关的脚本介绍也都有一些：

ns-3.35_wifi-he-network.cc_ns-3网络仿真工具wifi脚本解析_wifi脚本网络拓扑_ns-3wifi6吞吐脚本关键注释_吞吐部分_基础ns-3_ns3.35-CSDN博客

ns-3-model-library wifi 浅析_ns-3wifi部分解析_ns-3网络模拟器wifi部分文档分析_Part1_ns3 wifiphy物理层冲突-CSDN博客

ns-3-model-library wifi 浅析_ns-3wifi部分解析_ns-3网络模拟器wifi部分文档分析_Part2_yansphy-CSDN博客

在进行wifi饱和流测试的时候我们需要指定UDP 包间隔，如下interval

        const auto maxLoad = nLinks *EhtPhy::GetDataRate(mcs,MHz_u{static_cast<double>(width)},NanoSeconds(gi),1) /nStations;std::cout << " nLinks= " << nLinks << " nStations=" << nStations << " maxLoad=" << maxLoad << " bps" <<std::endl;if (udp){// UDP flowuint16_t port = 9;UdpServerHelper server(port);serverApp = server.Install(serverNodes.get());streamNumber += server.AssignStreams(serverNodes.get(), streamNumber);serverApp.Start(Seconds(0));serverApp.Stop(simulationTime + Seconds(1));const auto packetInterval = payloadSize * 8.0 / maxLoad;for (std::size_t i = 0; i < nStations; i++){UdpClientHelper client(serverInterfaces.GetAddress(i), port);client.SetAttribute("MaxPackets", UintegerValue(4294967295U));client.SetAttribute("Interval", TimeValue(Seconds(packetInterval)));client.SetAttribute("PacketSize", UintegerValue(payloadSize));ApplicationContainer clientApp = client.Install(clientNodes.Get(i));streamNumber += client.AssignStreams(clientNodes.Get(i), streamNumber);clientApp.Start(Seconds(1));clientApp.Stop(simulationTime + Seconds(1));}}