To implement the power-optimized data transmission in ns3 has to follow the several steps. Initially generate a network simulation, where nodes can regulate their transmission power based on certain conditions and then to enhance the energy consumption. Here is the detailed procedure on how to implement the power optimized data transmission in ns3:
Step-by-Step Implementation:
Step 1: Setup ns3 Environment
Make sure ns3 is installed in the system.
Step 2: Create the Simulation Script
- Include Necessary Modules: Make certain the script includes the necessary ns3 modules:
#include “ns3/core-module.h”
#include “ns3/network-module.h”
#include “ns3/mobility-module.h”
#include “ns3/wifi-module.h”
#include “ns3/internet-module.h”
#include “ns3/applications-module.h”
#include “ns3/energy-module.h”
Setup Nodes and Network:
using namespace ns3;
NS_LOG_COMPONENT_DEFINE (“PowerOptimizedDataTransmission”);
void AdjustTransmissionPower (Ptr<WifiNetDevice> wifiDevice, Ptr<BasicEnergySource> energySource)
{
Ptr<WifiPhy> phy = wifiDevice->GetPhy ();
double remainingEnergy = energySource->GetRemainingEnergy ();
// Adjust transmission power based on remaining energy
if (remainingEnergy < 20.0) // if energy is less than 20J, reduce power
{
phy->SetTxPowerStart (phy->GetTxPowerStart () / 2);
phy->SetTxPowerEnd (phy->GetTxPowerEnd () / 2);
}
else if (remainingEnergy > 80.0) // if energy is more than 80J, increase power
{
phy->SetTxPowerStart (phy->GetTxPowerStart () * 2);
phy->SetTxPowerEnd (phy->GetTxPowerEnd () * 2);
}
}
void SchedulePowerAdjustment (NodeContainer nodes, EnergySourceContainer sources, Time interval)
{
for (uint32_t i = 0; i < nodes.GetN (); ++i)
{
Ptr<Node> node = nodes.Get (i);
Ptr<NetDevice> device = node->GetDevice (0);
Ptr<WifiNetDevice> wifiDevice = DynamicCast<WifiNetDevice> (device);
Ptr<BasicEnergySource> energySource = DynamicCast<BasicEnergySource> (sources.Get (i));
Simulator::Schedule (interval, &AdjustTransmissionPower, wifiDevice, energySource);
}
Simulator::Schedule (interval, &SchedulePowerAdjustment, nodes, sources, interval);
}
int main (int argc, char *argv[])
{
CommandLine cmd;
cmd.Parse (argc, argv);
// Create nodes
NodeContainer nodes;
nodes.Create (10); // Create 10 nodes
// Set up Wi-Fi
WifiHelper wifi;
wifi.SetStandard (WIFI_PHY_STANDARD_80211n_2_4GHZ);
YansWifiPhyHelper phy = YansWifiPhyHelper::Default ();
YansWifiChannelHelper channel = YansWifiChannelHelper::Default ();
phy.SetChannel (channel.Create ());
WifiMacHelper mac;
Ssid ssid = Ssid (“ns-3-ssid”);
mac.SetType (“ns3::StaWifiMac”,
“Ssid”, SsidValue (ssid),
“ActiveProbing”, BooleanValue (false));
NetDeviceContainer devices = wifi.Install (phy, mac, nodes);
mac.SetType (“ns3::ApWifiMac”,
“Ssid”, SsidValue (ssid));
wifi.Install (phy, mac, nodes.Get (0)); // Set node 0 as AP
// Set up mobility
MobilityHelper mobility;
mobility.SetMobilityModel (“ns3::ConstantPositionMobilityModel”);
mobility.Install (nodes);
// Set up Internet stack
InternetStackHelper stack;
stack.Install (nodes);
// Assign IP addresses
Ipv4AddressHelper address;
address.SetBase (“10.1.1.0”, “255.255.255.0”);
Ipv4InterfaceContainer interfaces = address.Assign (devices);
// Set up energy model
BasicEnergySourceHelper basicSourceHelper;
basicSourceHelper.Set (“BasicEnergySourceInitialEnergyJ”, DoubleValue (100.0));
EnergySourceContainer sources = basicSourceHelper.Install (nodes);
WifiRadioEnergyModelHelper radioEnergyHelper;
radioEnergyHelper.Set (“TxCurrentA”, DoubleValue (0.0174));
radioEnergyHelper.Set (“RxCurrentA”, DoubleValue (0.0197));
DeviceEnergyModelContainer deviceModels = radioEnergyHelper.Install (devices, sources);
// Set up applications
UdpEchoServerHelper echoServer (9);
ApplicationContainer serverApps = echoServer.Install (nodes.Get (0));
serverApps.Start (Seconds (1.0));
serverApps.Stop (Seconds (20.0));
UdpEchoClientHelper echoClient (interfaces.GetAddress (0), 9);
echoClient.SetAttribute (“MaxPackets”, UintegerValue (100));
echoClient.SetAttribute (“Interval”, TimeValue (Seconds (1.0)));
echoClient.SetAttribute (“PacketSize”, UintegerValue (1024));
ApplicationContainer clientApps = echoClient.Install (nodes.Get (1));
clientApps.Start (Seconds (2.0));
clientApps.Stop (Seconds (20.0));
// Schedule power adjustment
SchedulePowerAdjustment (nodes, sources, Seconds (5.0));
Simulator::Stop (Seconds (20.0));
Simulator::Run ();
Simulator::Destroy ();
return 0;
}
Run the Simulation: Compile and run your simulation script:
./waf configure
./waf build
./waf –run PowerOptimizedDataTransmission
Explanation:
- Node Creation: Create nodes representing devices in the network.
- Wi-Fi Setup: Configure Wi-Fi for communication.
- Mobility: Set constant positions for nodes to represent their locations.
- Internet Stack: Install the Internet stack on all nodes.
- Energy Model: Install an energy model on the nodes to simulate energy consumption. This includes a basic energy source and a radio energy model.
- Applications: Use UDP Echo server and client applications to simulate data transmission.
- Power Adjustment: Implement a function AdjustTransmissionPower to adjust the transmission power of nodes based on their remaining energy. Schedule this function to run periodically using SchedulePowerAdjustment.
Step 4: Data Collection and Analysis
- Flow Monitor: Use the flow monitor to collect data on packet loss, delay, throughput, etc.
- Export Data: Export the collected data to analyse network performance and energy consumption.
In this script, we explored how power-optimized data transmission improves the energy consumption and how it modifies the transmission powered in certain conditions that were implemented in ns3 tool. We will provide a comprehensive overview of the how power-optimized data transmission as simulated in various contexts.
Get a flawless implementation of Power Optimized Data Transmission in the ns3 program with the expertise of our developers. We provide insights on project execution and share a variety of project concepts to assist you.