CODEWITHSUNDEEP
omnet++inet
dioklis
dioklis

Reputation: 1

Omnetpp INET error: Mobility position is not a finite number after initialize

Very new to omnet but I've been trying to set up a wireless mesh on top of StandardHost. While it compiles well, when the simulation starts I get this error: 

Mobility position is not a finite number after initialize (x=-nan,y=-nan,z=-nan) -- in module (inet::StationaryMobility) Net.node[0].mobility (id=12), during network initialization

Below are my package.ned, omnetpp.ini and mwe.ned.

If I set up the Node submodules of Net one by one and add a fixed property @display("p=...") to each one of them then it works. Setting them up more parametrically i.e. node[size]: Node; it fails to execute the simulation with the above error.

Any help would be very much appreciated.

Thanks in advance!

package.ned

package mwe;

omnetpp.ini

[General]
network = Net
*.radioMedium.typename = "Ieee802154NarrowbandScalarRadioMedium"
*.host*.wlan[0].radio.typename = "Ieee802154NarrowbandScalarRadio"
**.wlan[0].typename = "Ieee802154NarrowbandInterface"
*.host*.ipv4.arp.typename = "GlobalArp"
*.size = 2

mwe.ned

package mwe;

import inet.node.inet.StandardHost;
import inet.physicallayer.unitdisk.UnitDiskRadioMedium;
import inet.physicallayer.contract.packetlevel.IRadioMedium;
import inet.networklayer.configurator.ipv4.Ipv4NetworkConfigurator;

module Node extends StandardHost
{
    parameters:
        numWlanInterfaces = default(1);
}

network Net
{
    parameters:
        int size = default(1);
    submodules:
        configurator: Ipv4NetworkConfigurator;
        radioMedium: <default("UnitDiskRadioMedium")> like IRadioMedium;
        node[size]: Node;
}

Upvotes: 0

Views: 775

Answers (1)

Lou_is
Lou_is

Reputation: 279

I had a similar problem, with the exact same error message.

I solved it by setting the following parameters:

*.host[*].mobility.constraintAreaMaxX = 650m
*.host[*].mobility.constraintAreaMinX = 0m
*.host[*].mobility.constraintAreaMaxY = 500m
*.host[*].mobility.constraintAreaMinY = 0m
*.host[*].mobility.constraintAreaMaxZ = 0m
*.host[*].mobility.constraintAreaMinZ = 0m

I found the solution reading through the MobilityBase::setInitialPosition method: with a minimal configuration, getRandomPosition is called, and uses those values as min and max for the random.

Upvotes: 1

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