【问题标题】:Check and Cast error on Omnet++ with INet使用 INet 在 Omnet++ 上检查和投射错误
【发布时间】:2020-08-11 17:05:04
【问题描述】:

我正在尝试通过 AP 和路由器将 Udp 消息从 WirelessHost (Host1) 发送到 StandardHost (Host3),但是当我运行模拟时收到此错误消息(我将我的网络称为“poi” ):

check_and_cast(): 无法将 'inet::physicallayer::INoise*' 转换为类型 'const inet::physicallayer::NarrowbandNoiseBase *' -- 在模块中 (inet::physicallayer::ieee80211Radio) poi.router.wlan[0].radio (id=80),在网络初始化期间

几天前我开始使用带有 Inet 的 omnet++,并且我的代码基于教程和文档,但我找不到解决此错误的方法。有什么经验或解决办法吗? 谢谢

这是 .ned 代码,没有导入:

network poi {
    parameters:
        @display("bgb=514,316;bgg=100,1,grey95");
        @figure[title](type=label; pos=0,-1; anchor=sw; color=darkblue);

        @figure[rcvdPkText](type=indicatorText; pos=380,20; anchor=w; font=,18; textFormat="packets received: %g"; initialValue=0);
        @statistic[packetReceived](source=host3.app[0].packetReceived; record=figure(count); targetFigure=rcvdPkText);

    submodules:
        host1: WirelessHost {
            @display("p=403,224");
            numWlanInterfaces = 1;
            numApps = 1;
        }
        router: Router {
            @display("p=193,224");
            numWlanInterfaces = 2;
            numEthInterfaces = 2;
            numApps = 4;
        }
        accessPoint: AccessPoint {
            @display("p=303,217;r=2000");
        }
        host3: StandardHost {
            @display("p=73,224");
            numEthInterfaces = 1;
            numApps = 1;
        }
        integratedCanvasVisualizer: IntegratedCanvasVisualizer {
            @display("p=379,57");
        }
        configurator: Ipv4NetworkConfigurator {
            @display("p=104,35");
        }
        unitDiskRadioMedium: UnitDiskRadioMedium {
            @display("p=216,100;r=10000");
        }

    connections:
        accessPoint.ethg++ <--> Eth10G { @display("ls=,0"); } <--> router.ethg[0];
        router.ethg[1] <--> Eth10G { @display("ls=,0"); } <--> host3.ethg[0];
}

和 .ini 文件:

[General]
network = poi
*.host*.ipv4.arp.typename = "GlobalArp"
*.router.ipv4.arp.typename = "GlobalArp"
*.router.app[*].typename = "UdpBasicApp"

*.host1.app[0].typename = "UdpBasicApp"
*.host1.app[0].destAddresses = "accessPoint"
*.host1.app[0].messageLength = 500B
*.host1.app[0].sendInterval = uniform(1ms,10ms)
*.host1.app[0].packetName = "UDPData"

*.host1.wlan[*].radio.radioMediumModule = "unitDiskRadioMedium"
*.router.wlan[*].radio.radioMediumModule = "unitDiskRadioMedium"
*.accessPoint.wlan[*].radio.radioMediumModule = "unitDiskRadioMedium"

*.host*.wlan[*].radio.receiver.ignoreInterference = true

*.host3.app[*].typename = "UdpBasicApp"

*.host*.wlan[0].typename = "AckingWirelessInterface"
*.host*.wlan[0].mac.useAck = false
*.host*.wlan[0].mac.fullDuplex = true
*.host*.wlan[0].radio.transmitter.communicationRange = 500m
*.host*.wlan[0].mac.headerLength = 1B

*.host*.**.bitrate = 1Gbps

【问题讨论】:

    标签: casting omnet++ inet


    【解决方案1】:

    添加到您的 ini 文件中:

    **.wlan[*].radio.typename = "UnitDiskRadio"
    

    除此之外,您还可以在ini中设置未分配的参数,例如:

    **.app[0].destPort = 4000
    **.app[0].messageLength= 100B
    **.app[0].sendInterval= 1s
    **.transmitter.communicationRange = 500m
    

    【讨论】:

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