To implement the Primary User Emulation Attack (PUEA) detection in ns3 has encompasses to setup the cognitive radio network (CRN) then to control the spectrum of primary users (PUs) signal by secondary users (SUs) that is to identify the malicious users or assaults. This is commonly contains to setup the cognitive radio environment, executing the detection techniques, and emulating the features of primary, secondary, and malicious users. The given below is the detailed procedure on how to implement the PUEA detection in ns3:
Step-by-Step Implementation:
Step 1: Install ns3
Make sure ns3 is installed in the computer.
Step 2: Set Up the Simulation Environment
Create a new simulation script or modify an existing one. This script will define the network topology, nodes, mobility models, and communication protocols.
Step 3: Define Network Topology
Create nodes and define the network topology, including primary users, secondary users, and malicious users.
#include “ns3/core-module.h”
#include “ns3/network-module.h”
#include “ns3/internet-module.h”
#include “ns3/mobility-module.h”
#include “ns3/wifi-module.h”
#include “ns3/aodv-helper.h”
#include “ns3/applications-module.h”
#include “ns3/flow-monitor-module.h”
using namespace ns3;
NS_LOG_COMPONENT_DEFINE (“PUEADetectionExample”);
int main (int argc, char *argv[])
{
// Enable logging
LogComponentEnable (“PUEADetectionExample”, LOG_LEVEL_INFO);
// Create nodes
NodeContainer primaryNodes;
primaryNodes.Create (1); // Primary user
NodeContainer secondaryNodes;
secondaryNodes.Create (5); // Secondary users
NodeContainer maliciousNodes;
maliciousNodes.Create (1); // Malicious user
// Set up Wi-Fi
WifiHelper wifi;
wifi.SetStandard (WIFI_PHY_STANDARD_80211a);
YansWifiPhyHelper wifiPhy = YansWifiPhyHelper::Default ();
YansWifiChannelHelper wifiChannel = YansWifiChannelHelper::Default ();
wifiPhy.SetChannel (wifiChannel.Create ());
WifiMacHelper wifiMac;
wifiMac.SetType (“ns3::AdhocWifiMac”);
NetDeviceContainer secondaryDevices;
secondaryDevices = wifi.Install (wifiPhy, wifiMac, secondaryNodes);
NetDeviceContainer primaryDevices;
primaryDevices = wifi.Install (wifiPhy, wifiMac, primaryNodes);
NetDeviceContainer maliciousDevices;
maliciousDevices = wifi.Install (wifiPhy, wifiMac, maliciousNodes);
// Install Internet stack
InternetStackHelper internet;
internet.Install (primaryNodes);
internet.Install (secondaryNodes);
internet.Install (maliciousNodes);
// Assign IP addresses
Ipv4AddressHelper address;
address.SetBase (“10.1.1.0”, “255.255.255.0”);
Ipv4InterfaceContainer primaryInterfaces = address.Assign (primaryDevices);
Ipv4InterfaceContainer secondaryInterfaces = address.Assign (secondaryDevices);
Ipv4InterfaceContainer maliciousInterfaces = address.Assign (maliciousDevices);
// Set up mobility model
MobilityHelper mobility;
mobility.SetPositionAllocator (“ns3::GridPositionAllocator”,
“MinX”, DoubleValue (0.0),
“MinY”, DoubleValue (0.0),
“DeltaX”, DoubleValue (5.0),
“DeltaY”, DoubleValue (5.0),
“GridWidth”, UintegerValue (3),
“LayoutType”, StringValue (“RowFirst”));
mobility.SetMobilityModel (“ns3::ConstantPositionMobilityModel”);
mobility.Install (primaryNodes);
mobility.Install (secondaryNodes);
mobility.Install (maliciousNodes);
// Install and start applications on nodes
uint16_t port = 8080;
// Primary user application
OnOffHelper primaryOnOff (“ns3::UdpSocketFactory”, InetSocketAddress (Ipv4Address (“255.255.255.255”), port));
primaryOnOff.SetConstantRate (DataRate (“500kbps”));
ApplicationContainer primaryApp = primaryOnOff.Install (primaryNodes.Get (0));
primaryApp.Start (Seconds (1.0));
primaryApp.Stop (Seconds (10.0));
// Malicious user application
OnOffHelper maliciousOnOff (“ns3::UdpSocketFactory”, InetSocketAddress (Ipv4Address (“255.255.255.255”), port));
maliciousOnOff.SetConstantRate (DataRate (“500kbps”));
ApplicationContainer maliciousApp = maliciousOnOff.Install (maliciousNodes.Get (0));
maliciousApp.Start (Seconds (2.0));
maliciousApp.Stop (Seconds (10.0));
// Secondary user application
OnOffHelper secondaryOnOff (“ns3::UdpSocketFactory”, InetSocketAddress (Ipv4Address (“255.255.255.255”), port));
secondaryOnOff.SetConstantRate (DataRate (“500kbps”));
ApplicationContainer secondaryApp = secondaryOnOff.Install (secondaryNodes);
secondaryApp.Start (Seconds (3.0));
secondaryApp.Stop (Seconds (10.0));
// Detection mechanism (simplified)
Simulator::Schedule (Seconds (3.0), &CheckForPUEA, secondaryNodes, port);
// Set up FlowMonitor
FlowMonitorHelper flowmon;
Ptr<FlowMonitor> monitor = flowmon.InstallAll ();
// Run the simulation
Simulator::Stop (Seconds (10.0));
Simulator::Run ();
// Print statistics
monitor->CheckForLostPackets ();
Ptr<Ipv4FlowClassifier>classifier=DynamicCast<Ipv4FlowClassifier>(flowmon.GetClassifier ());
std::map<FlowId, FlowMonitor::FlowStats> stats = monitor->GetFlowStats ();
for (std::map<FlowId, FlowMonitor::FlowStats>::const_iterator i = stats.begin (); i != stats.end (); ++i)
{
Ipv4FlowClassifier::FiveTuple t = classifier->FindFlow (i->first);
NS_LOG_UNCOND (“Flow ” << i->first << ” (” << t.sourceAddress << ” -> ” << t.destinationAddress << “)”);
NS_LOG_UNCOND (” Tx Packets: ” << i->second.txPackets);
NS_LOG_UNCOND (” Tx Bytes: ” << i->second.txBytes);
NS_LOG_UNCOND (” Rx Packets: ” << i->second.rxPackets);
NS_LOG_UNCOND (” Rx Bytes: ” << i->second.rxBytes);
NS_LOG_UNCOND (” Throughput: ” << i->second.rxBytes * 8.0 / (i->second.timeLastRxPacket.GetSeconds () – i->second.timeFirstTxPacket.GetSeconds ()) / 1024 / 1024 << ” Mbps”);
}
// Clean up
Simulator::Destroy ();
return 0;
}
void CheckForPUEA (NodeContainer secondaryNodes, uint16_t port)
{
for (NodeContainer::Iterator i = secondaryNodes.Begin (); i != secondaryNodes.End (); ++i)
{
Ptr<Node> node = *i;
Ptr<Ipv4> ipv4 = node->GetObject<Ipv4> ();
Ipv4Address addr = ipv4->GetAddress (1, 0).GetLocal ();
std::cout << “Secondary node at ” << addr << ” checking for PUEA” << std::endl;
// Implement your PUEA detection algorithm here
// This is a simplified example, replace with actual detection logic
bool detected = false;
if (/* your condition */ false)
{
detected = true;
std::cout << “PUEA detected at node ” << addr << std::endl;
}
}
// Schedule the next check
Simulator::Schedule (Seconds (1.0), &CheckForPUEA, secondaryNodes, port);
}
Step 4: Implement PUEA Detection Mechanism
In the example, a simplified PUEA detection mechanism is implemented. We should replace the criteria with your actual detection logic.
Step 5: Set Up Mobility Models
In the example, the ConstantPositionMobilityModel is used for simplicity. Adjust the mobility models and parameters as needed for your specific use case.
Step 6: Install and Start Applications
We set up OnOff applications to simulate primary, secondary, and malicious users’ traffic. The primary user and malicious user start transmitting at different times to simulate an attack scenario.
Step 7: Run the Simulation
Compile and run your simulation script to see the effect of PUEA and the detection mechanism on network performance. The output will include statistics such as the number of packets transmitted and received, throughput, and any packet loss.
Overall, we had learned how to implement the Primary User Emulation Attack (PUEA) detection in ns3 framework. We also provide further insights regarding Primary User Emulation Attack (PUEA) detection.
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