How to change the nodes position with time?

[Mahmudul Islam]

Hello everyone,

I want to change the nodes position with time to a specific location. For example in the network, at time t=0, I have two nodes A (0.0, 0.0, 0.0) and B (0.0, 10.0, 0.0) with these initial positions. After 10 seconds I want node A to be at position (0.0, 20.0, 0.0) and node B at (50.0, 20.0, 0.0). After 10 seconds I want the nodes to be another specific location and so on.

How can I set the mobility of the nodes in such a way?

[Adil Alsuhaim]

You install some mobility model to the nodes first. For example, ConstantPositionMobilityModel. What this does is aggregate a mobility model object to the node. You can obtain that object from any node that has mobility install to it like this:

//Get a pointer to node 3. FYI, ns-3 keeps pointers to all nodes in NodeList

Ptr <Node> my_node = NodeList::GetNode (3);

//Get the mobility model of that node

Ptr <MobilityModel> mm = my_node->GetObject <MobilityModel> ();

//Change the position of node 3

mm->SetPosition (Vector (10,20,0));

So this code can be placed inside a function that you would scheduled every time you want to update the node's position

Cheers,

Adil

[Mahmudul Islam]

Thank you for your reply. I found another way and it is to use WaypointMobility model. I used this to achieve the mobility that I wanted.

  MobilityHelper mobilityUAV;

  mobilityUAV.SetMobilityModel("ns3::WaypointMobilityModel");

  

  mobilityUAV.Install(nodes.Get (2));

  Ptr<WaypointMobilityModel> wayMobility;

  wayMobility = nodes.Get(2)->GetObject<WaypointMobilityModel>();

  Waypoint waypointStart(Seconds(0), Vector3D(0, 200, 1.5));

  Waypoint waypointEnd(Seconds(4.9), Vector3D(1200, 200, 1.5));

  wayMobility->AddWaypoint(waypointStart);

  wayMobility->AddWaypoint(waypointEnd);

  Waypoint waypointStart1(Seconds(5), Vector3D(1150, 200, 1.5));

  Waypoint waypointEnd1(Seconds(10), Vector3D(1200, 200, 1.5));

  wayMobility->AddWaypoint(waypointStart1);

  wayMobility->AddWaypoint(waypointEnd1);

[Hemant Saini]

Hi Mahmud can you pl tell how calculate energy consumption with simulation time in ns3

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[Mahmudul Islam]

Hello Saini,

I am sorry, I actually don't know how to calculate the energy consumption of nodes.

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[Hemant Saini]

Hi Mahmud
Am also working in uav
Actually am not understanding what you want to do
R u making scenario
Or doing changes in mobility

I think u need vector I can help you you connect me on my mail

For hint you would take vector position=get position()
Then you will get one by one position
Where you can also do changes

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