To calculate network power efficiency in ns3, we have to measure the ratio of the useful data transferred to the total power consumed by the network. Power efficiency is a crucial metric for evaluating the energy performance of wireless networks.
Efficient calculation of network power efficiency in ns3 is a key focus. Here at ns3simulation.com we give complete guidance for your project.
Let us walk through the interesting guide on calculating network power efficiency in ns3.
Steps for calculating network Power Efficiency
- Set up the simulation :
- Make sure that ns3 is installed in the computer. If not, install it and include necessary modules.
- Create Network Topology:
- create nodes for the base stations (eNodeBs) and user equipment (UEs)..
- Set up wireless network with appropriate configurations.
- Configure Applications:
- On the nodes, setup applications to generate and receive traffic.
- 4. Enable Tracing and Metrics Collection:
- To capture relevant metrics such as transmitted data and power consumption, use ns3 tracing capabilities.
- Run the simulation :
- Execute the simulation and collect the trace data.
- Analyze the results :
- Post-process the trace data to calculate the power efficiency.
Example code for LTE Network
Create a basic set up of network with LTE network, generate traffic, and capture transmitted data and power consumption in ns3.
#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/config-store.h”
#include “ns3/log.h”
using namespace ns3;
NS_LOG_COMPONENT_DEFINE (“LtePowerEfficiencyExample”);
uint64_t totalDataTransmitted = 0;
double totalPowerConsumed = 0;
void PacketSentCallback (Ptr<const Packet> packet)
{
totalDataTransmitted += packet->GetSize();
}
void PowerConsumedCallback (double power)
{
totalPowerConsumed += power;
}
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));
// Connect callbacks to track transmitted data and power consumption
for (uint32_t i = 0; i < ueNodes.GetN (); ++i)
{
Ptr<NetDevice> netDev = ueLteDevs.Get (i);
Ptr<LteUeNetDevice> ueLteDev = DynamicCast<LteUeNetDevice> (netDev);
ueLteDev->GetPhy ()->TraceConnectWithoutContext (“PhyTxEnd”, MakeCallback (&PacketSentCallback));
}
for (uint32_t i = 0; i < enbNodes.GetN (); ++i)
{
Ptr<NetDevice> netDev = enbLteDevs.Get (i);
Ptr<LteEnbNetDevice> enbLteDev = DynamicCast<LteEnbNetDevice> (netDev);
enbLteDev->GetPhy ()->TraceConnectWithoutContext (“TxPower”, MakeCallback (&PowerConsumedCallback));
}
// Run the simulation
Simulator::Stop (Seconds (11.0));
Simulator::Run ();
// Calculate power efficiency
double powerEfficiency = static_cast<double>(totalDataTransmitted) / totalPowerConsumed;
NS_LOG_UNCOND (“Power Efficiency: ” << powerEfficiency << ” bytes/W”);
// Clean up
Simulator::Destroy ();
return 0;
}
Explanation:
- Setup Logging:
- To track activities, enable logging for the UDP applications.
- Create Nodes and Network:
- To represent UEs and eNodeBs, create nodes.
- For UEs and eNodeBs, configure mobility models.
- Install LTE and EPC Helper:
- Configure and create LTE and EPC helpers.
- On the UEs and eNodeBs, install LTE devices.
- Install Internet Stack:
- On UEs, install the Internet stack.
- Assign IP addresses to the UEs.
- Attach UEs to eNodeBs:
- Attach each UE to an eNodeB. Here, a round-robin attachment is used for simplicity.
- Install Applications:
- On UEs, install UDP server applications.
- Install UDP client applications on the UEs, sending traffic to the server.
- Connect Callbacks to Track Transmitted Data and Power Consumption:
- To track the total amount of data transmitted, use PacketSentCallback.
- To track the total power consumed, use PowerConsumedCallback.
- Run Simulation:
- Run the simulation for the specified duration.
- Calculate Power Efficiency:
- Calculate power efficiency as the ratio of total data transmitted to total power consumed.
Power Efficiency=Total Data TransmittedTotal Power Consumed\text{Power Efficiency} = \frac{\text{Total Data Transmitted}}{\text{Total Power Consumed}}Power Efficiency=Total Power ConsumedTotal Data Transmitted
Analyzing the Results:
- Power Efficiency:
- By dividing the total data transmitted by the total power consumed, calculate the Power efficiency.
- This metric provides an indication of the energy performance of the network.
On the whole we had a analysis on calculating network power efficiency in ns3 by measuring the ratio of the useful data transmitted to the total power consumed by the network. Also, we provide more related topics on Network Power Efficiency.
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