How to Calculate Network Transmission power in Ns3

To calculate network transmission power in ns3, by using the built-in tracing capabilities of ns3 to capture and analyze the transmission power levels. we need to measure the power levels used by the nodes (e.g., user equipment (UE) and eNodeBs in an LTE network) during the transmission of data. Here the steps given to calculate the network transmission power in ns3.

Step-by-Step Guide to Calculate Network Transmission Power in ns3

1. Set Up the Simulation Environment:
   • Make sure ns3 is installed and set up correctly.
   • Include necessary modules for the simulation (e.g., LTE, Internet, Mobility).
2. Create Network Topology:
   • Define nodes for the base stations (eNodeBs) and user equipment (UEs).
   • Set up the wireless network with appropriate configurations.
3. Configure Applications:
   • Install traffic generating applications (e.g., UDP, TCP) on the UEs.
4. Enable Tracing and Metrics Collection:
   • Enable tracing to capture relevant metrics such as transmission power levels.
5. Run the Simulation:
   • Execute the simulation and collect the trace data.
6. Analyze the Results:
   • Post-process the trace data to calculate the transmission power levels over time.

Example Code Snippet

Here’s a simple example of how to set up an LTE network, generate traffic, and calculate the transmission power for the network:

#include “ns3/core-module.h”

#include “ns3/network-module.h”

#include “ns3/internet-module.h”

#include “ns3/point-to-point-module.h”

#include “ns3/applications-module.h”

#include “ns3/lte-module.h”

#include “ns3/epc-helper.h”

#include “ns3/mobility-module.h”

#include “ns3/flow-monitor-module.h”

using namespace ns3;

NS_LOG_COMPONENT_DEFINE (“LteTransmissionPowerExample”);

// Function to log transmission power

void LogTxPower (Ptr<OutputStreamWrapper> stream, uint64_t imsi, uint16_t cellId, double txPower)

{

*stream->GetStream () << Simulator::Now ().GetSeconds () << “\t” << imsi << “\t” << cellId << “\t” << txPower << ” dBm” << std::endl;

}

int main (int argc, char *argv[])

{

// Set up logging

LogComponentEnable (“UdpClient”, LOG_LEVEL_INFO);

LogComponentEnable (“UdpServer”, LOG_LEVEL_INFO);

// Create LTE network nodes

NodeContainer ueNodes;

NodeContainer enbNodes;

ueNodes.Create (10);

enbNodes.Create (3);

// Install Mobility model

MobilityHelper mobility;

mobility.SetMobilityModel (“ns3::ConstantPositionMobilityModel”);

mobility.Install (enbNodes);

mobility.SetPositionAllocator (“ns3::GridPositionAllocator”,

“MinX”, DoubleValue (0.0),

“MinY”, DoubleValue (0.0),

“DeltaX”, DoubleValue (50.0),

“DeltaY”, DoubleValue (50.0),

“GridWidth”, UintegerValue (3),

“LayoutType”, StringValue (“RowFirst”));

mobility.Install (ueNodes);

// Create LTE helper and EPC helper

Ptr<LteHelper> lteHelper = CreateObject<LteHelper> ();

Ptr<PointToPointEpcHelper> epcHelper = CreateObject<PointToPointEpcHelper> ();

lteHelper->SetEpcHelper (epcHelper);

// Install LTE devices to the nodes

NetDeviceContainer enbLteDevs = lteHelper->InstallEnbDevice (enbNodes);

NetDeviceContainer ueLteDevs = lteHelper->InstallUeDevice (ueNodes);

// Install Internet stack on UEs

InternetStackHelper internet;

internet.Install (ueNodes);

// Assign IP addresses to UEs

Ipv4InterfaceContainer ueIpIface;

ueIpIface = epcHelper->AssignUeIpv4Address (NetDeviceContainer (ueLteDevs));

// Attach UEs to eNodeBs

for (uint32_t i = 0; i < ueNodes.GetN (); ++i)

{

lteHelper->Attach (ueLteDevs.Get (i), enbLteDevs.Get (i % enbNodes.GetN ()));

}

// Install and start applications on UEs and remote host

uint16_t dlPort = 1234;

ApplicationContainer clientApps;

ApplicationContainer serverApps;

for (uint32_t i = 0; i < ueNodes.GetN (); ++i)

{

UdpServerHelper myServer (dlPort);

serverApps.Add (myServer.Install (ueNodes.Get (i)));

UdpClientHelper myClient (ueIpIface.GetAddress (i), dlPort);

myClient.SetAttribute (“MaxPackets”, UintegerValue (1000));

myClient.SetAttribute (“Interval”, TimeValue (MilliSeconds (100)));

myClient.SetAttribute (“PacketSize”, UintegerValue (1024));

clientApps.Add (myClient.Install (ueNodes.Get (i)));

}

serverApps.Start (Seconds (1.0));

serverApps.Stop (Seconds (10.0));

clientApps.Start (Seconds (2.0));

clientApps.Stop (Seconds (10.0));

// Create output stream for logging transmission power

AsciiTraceHelper ascii;

Ptr<OutputStreamWrapper> stream = ascii.CreateFileStream (“tx-power-trace.txt”);

*stream->GetStream () << “Time(s)\tIMSI\tCellId\tTxPower(dBm)\n”;

// Connect to trace sources

Config::Connect (“/NodeList/*/DeviceList/*/LteUePhy/ReportCurrentCellRsrpSinr”,

MakeBoundCallback (&LogTxPower, stream));

// Run the simulation

Simulator::Stop (Seconds (11.0));

Simulator::Run ();

// Clean up

Simulator::Destroy ();

return 0;

}

Explanation:

1. Setup Logging:
   • Enable logging for the UDP applications to track their activities.
2. Create Nodes and Network:
   • Create nodes representing UEs and eNodeBs.
   • Configure mobility models for UEs and eNodeBs.
3. Install LTE and EPC Helper:
   • Create and configure LTE and EPC helpers.
   • Install LTE devices on the UEs and eNodeBs.
4. Install Internet Stack:
   • Install the Internet stack on UEs.
   • Assign IP addresses to the UEs.
5. Attach UEs to eNodeBs:
   • Attach each UE to an eNodeB. Here, a round-robin attachment is used for simplicity.
6. Install Applications:
   • Install UDP server applications on the UEs.
   • Install UDP client applications on the UEs, sending traffic to the server.
7. Connect to Trace Sources:
   • Create an output stream for logging transmission power.
   • Connect to the trace source for reporting transmission power.
8. Run Simulation:
   • Run the simulation for the specified duration.
9. Analyze the Results:
   • The transmission power is logged periodically during the simulation.

Analyzing the Results:

• Transmission Power:
  • The transmission power for each UE is logged along with the simulation time, IMSI, and cell ID.
  • This metric provides an indication of the power levels used during transmission in the network.

The process of calculating the Network Transmission power in ns3 was explained elaborately by logging the transmission power for each UE during the transmission of data by using built-in tracing capabilities in ns3.We will assist you in determining the Network Transmission power calculation in ns3 for your project. Kindly share your parameters with us, and we will ensure top results.