To Implement Ultra-Wideband (UWB) communication in ns-3 by creating a network topology which uses UWB for high-speed, short-range communication. ns-3 does not have built-in support for such communication. so, it is possible to simulate UWB-like behaviour using the existing ns-3 modules by configuring high data rates and appropriate physical layer properties. The following steps will guide on how to simulate UWB communication in ns-3.
Prerequisites
- ns-3 installed on your system.
- Basic understanding of ns-3 and C++ programming.
Step-by-step to Implement UWB Communication in ns-3
- Install ns-3: Ensure you have ns-3 installed. You can download it from the official website and follow the installation instructions.
wget https://www.nsnam.org/release/ns-allinone-3.xx.tar.bz2
tar -xjf ns-allinone-3.xx.tar.bz2
cd ns-allinone-3.xx
./build.py –enable-examples –enable-tests
Include Necessary Headers: Include the required headers for network modules, mobility, internet, and point-to-point links.
#include “ns3/core-module.h”
#include “ns3/network-module.h”
#include “ns3/mobility-module.h”
#include “ns3/internet-module.h”
#include “ns3/point-to-point-module.h”
#include “ns3/applications-module.h”
Create Network Topology: Create nodes representing the devices in the UWB network.
NodeContainer nodes;
nodes.Create(2); // Create 2 nodes for UWB communication
Set Up Mobility Model: Configure the mobility model to simulate the placement and movement of the devices.
MobilityHelper mobility;
mobility.SetPositionAllocator(“ns3::GridPositionAllocator”,
“MinX”, DoubleValue(0.0),
“MinY”, DoubleValue(0.0),
“DeltaX”, DoubleValue(10.0),
“DeltaY”, DoubleValue(10.0),
“GridWidth”, UintegerValue(2),
“LayoutType”, StringValue(“RowFirst”));
mobility.SetMobilityModel(“ns3::ConstantPositionMobilityModel”);
mobility.Install(nodes);
Set Up Point-to-Point Links: Configure point-to-point links to simulate UWB communication by setting high data rates and low propagation delays.
PointToPointHelper pointToPoint;
pointToPoint.SetDeviceAttribute(“DataRate”, StringValue(“100Gbps”));
pointToPoint.SetChannelAttribute(“Delay”, StringValue(“1us”));
NetDeviceContainer devices;
devices = pointToPoint.Install(nodes);
Install Internet Stack: Install the internet stack on the nodes.
InternetStackHelper stack;
stack.Install(nodes);
Assign IP Addresses: Assign IP addresses to the devices.
Ipv4AddressHelper address;
address.SetBase(“10.1.1.0”, “255.255.255.0”);
Ipv4InterfaceContainer interfaces = address.Assign(devices);
Create Applications: Create and install applications to simulate data transmission between the nodes.
uint16_t port = 9;
OnOffHelperonoff(“ns3::UdpSocketFactory”, Address(InetSocketAddress(interfaces.GetAddress(1), port)));
onoff.SetConstantRate(DataRate(“10Gbps”));
ApplicationContainer app = onoff.Install(nodes.Get(0));
app.Start(Seconds(1.0));
app.Stop(Seconds(10.0));
PacketSinkHelpersink(“ns3::UdpSocketFactory”, Address(InetSocketAddress(Ipv4Address::GetAny(), port)));
app = sink.Install(nodes.Get(1));
app.Start(Seconds(0.0));
app.Stop(Seconds(10.0));
Run the Simulation: Finally, run the simulation and clean up.
Simulator::Stop(Seconds(10.0));
Simulator::Run();
Simulator::Destroy();
Example Complete Script
Here is an example script for setting up a basic UWB communication simulation in ns-3:
#include “ns3/core-module.h”
#include “ns3/network-module.h”
#include “ns3/mobility-module.h”
#include “ns3/internet-module.h”
#include “ns3/point-to-point-module.h”
#include “ns3/applications-module.h”
using namespace ns3;
int main(int argc, char *argv[])
{
NodeContainer nodes;
nodes.Create(2); // Create 2 nodes for UWB communication
MobilityHelper mobility;
mobility.SetPositionAllocator(“ns3::GridPositionAllocator”,
“MinX”, DoubleValue(0.0),
“MinY”, DoubleValue(0.0),
“DeltaX”, DoubleValue(10.0),
“DeltaY”, DoubleValue(10.0),
“GridWidth”, UintegerValue(2),
“LayoutType”, StringValue(“RowFirst”));
mobility.SetMobilityModel(“ns3::ConstantPositionMobilityModel”);
mobility.Install(nodes);
PointToPointHelper pointToPoint;
pointToPoint.SetDeviceAttribute(“DataRate”, StringValue(“100Gbps”));
pointToPoint.SetChannelAttribute(“Delay”, StringValue(“1us”));
NetDeviceContainer devices;
devices = pointToPoint.Install(nodes);
InternetStackHelper stack;
stack.Install(nodes);
Ipv4AddressHelper address;
address.SetBase(“10.1.1.0”, “255.255.255.0”);
Ipv4InterfaceContainer interfaces = address.Assign(devices);
uint16_t port = 9;
OnOffHelperonoff(“ns3::UdpSocketFactory”, Address(InetSocketAddress(interfaces.GetAddress(1), port)));
onoff.SetConstantRate(DataRate(“10Gbps”));
ApplicationContainer app = onoff.Install(nodes.Get(0));
app.Start(Seconds(1.0));
app.Stop(Seconds(10.0));
PacketSinkHelpersink(“ns3::UdpSocketFactory”, Address(InetSocketAddress(Ipv4Address::GetAny(), port)));
app = sink.Install(nodes.Get(1));
app.Start(Seconds(0.0));
app.Stop(Seconds(10.0));
Simulator::Stop(Seconds(10.0));
Simulator::Run();
Simulator::Destroy();
return 0;
}
Running the Script
Compile and run the script using the following commands:
./waf configure –enable-examples
./waf build
./waf –run <script-name>
Finally, the UWB communication is implemented in ns-3 and simulated get best coding support from us .