How to Implement Network Remote Patient Monitoring in ns3

To implement the network remote patient monitoring in ns3 has encompasses to emulate the network scenarios and then gather the patient’s data using the sensors and then communicate to a central server for monitoring. This contains to setup a wireless communication, manage the sensor data and emulate the numerous network conditions. The given below are the detailed procedures on how to implement the remote patient monitoring in ns3:

Step-by-Step Implementation:

Step 1: Setup ns3 Environment

Make sure ns3 is installed in the system.

Step 2: Define the Scenario

• Patient Nodes: To demonstrate wearable or implantable sensors.
• Gateway Nodes: Collecting data from patient nodes and forwarding it to the central server.
• Server Node: Central server that receives and processes patient data.

Step 3: Create the Simulation Script

1. Include Necessary Modules: Ensure your 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/flow-monitor-module.h”

Setup Nodes and Network:

using namespace ns3;

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

{

// Enable logging

LogComponentEnable (“UdpEchoClientApplication”, LOG_LEVEL_INFO);

LogComponentEnable (“UdpEchoServerApplication”, LOG_LEVEL_INFO);

// Create nodes

NodeContainer patientNodes;

patientNodes.Create (5); // 5 patient nodes

NodeContainer gatewayNode;

gatewayNode.Create (1); // 1 gateway node

NodeContainer serverNode;

serverNode.Create (1); // 1 server node

// Set up Wi-Fi for patient nodes to gateway

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 patientDevices = wifi.Install (phy, mac, patientNodes);

mac.SetType (“ns3::ApWifiMac”,

“Ssid”, SsidValue (ssid));

NetDeviceContainer gatewayDevices = wifi.Install (phy, mac, gatewayNode);

// Set up Internet stack

InternetStackHelper stack;

stack.Install (patientNodes);

stack.Install (gatewayNode);

stack.Install (serverNode);

// Assign IP addresses

Ipv4AddressHelper address;

address.SetBase (“10.1.1.0”, “255.255.255.0”);

Ipv4InterfaceContainer patientInterfaces = address.Assign (patientDevices);

Ipv4InterfaceContainer gatewayInterface = address.Assign (gatewayDevices);

// Set up mobility

MobilityHelper mobility;

Ptr<ListPositionAllocator> positionAlloc = CreateObject<ListPositionAllocator> ();

positionAlloc->Add (Vector (1.0, 1.0, 0.0)); // Patient node 1

positionAlloc->Add (Vector (2.0, 1.0, 0.0)); // Patient node 2

positionAlloc->Add (Vector (3.0, 1.0, 0.0)); // Patient node 3

positionAlloc->Add (Vector (4.0, 1.0, 0.0)); // Patient node 4

positionAlloc->Add (Vector (5.0, 1.0, 0.0)); // Patient node 5

positionAlloc->Add (Vector (2.5, 2.5, 0.0)); // Gateway node

positionAlloc->Add (Vector (10.0, 10.0, 0.0)); // Server node

mobility.SetPositionAllocator (positionAlloc);

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

mobility.Install (patientNodes);

mobility.Install (gatewayNode);

mobility.Install (serverNode);

// Set up applications

// Server application on the gateway node

UdpEchoServerHelper echoServer (9);

ApplicationContainer serverApps = echoServer.Install (gatewayNode.Get (0));

serverApps.Start (Seconds (1.0));

serverApps.Stop (Seconds (20.0));

// Client applications on the patient nodes

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

{

UdpEchoClientHelper echoClient (gatewayInterface.GetAddress (0), 9);

echoClient.SetAttribute (“MaxPackets”, UintegerValue (100));

echoClient.SetAttribute (“Interval”, TimeValue (Seconds (1.0)));

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

ApplicationContainer clientApps = echoClient.Install (patientNodes.Get (i));

clientApps.Start (Seconds (2.0 + i));

clientApps.Stop (Seconds (20.0));

}

// Data forwarding from gateway to server

Ipv4AddressHelper serverAddress;

serverAddress.SetBase (“10.1.2.0”, “255.255.255.0”);

NetDeviceContainer serverDevices = pointToPoint.Install (gatewayNode, serverNode);

Ipv4InterfaceContainer serverInterfaces = serverAddress.Assign (serverDevices);

// Route configuration

Ipv4GlobalRoutingHelper::PopulateRoutingTables ();

// Flow monitor

FlowMonitorHelper flowmon;

Ptr<FlowMonitor> monitor = flowmon.InstallAll ();

Simulator::Stop (Seconds (20.0));

Simulator::Run ();

// Analyze and export flow monitor data

monitor->SerializeToXmlFile (“flowmon-results.xml”, true, true);

Simulator::Destroy ();

return 0;

}

Run the Simulation: Compile and run your simulation script:

./waf configure

./waf build

./waf –run your-simulation-script

Explanation:

• Node Creation: Patient nodes represent wearable or implantable sensors; gateway nodes collect data from patient nodes and forward it to the server node.
• Wi-Fi Setup: Configure Wi-Fi for communication among patient nodes and the gateway.
• Internet Stack: Install the Internet stack on all nodes.
• IP Address Assignment: Assign IP addresses to all nodes.
• Mobility: Set constant positions for nodes to represent their locations.
• Applications: Use UDP Echo server and client applications to simulate data transmission from patient nodes to the gateway and then to the server.
• Flow Monitor: Collect network performance metrics.

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 identify any issues.

In the end, we clearly understood how to gather the patient data and how to compile and monitor the patient information in the network that was implemented in the ns3 environment. We plan to provide the valuable insight regarding how the remote patient monitoring works in other tool. We will provide you with exceptional project execution strategies for implementing Network Remote Patient Monitoring in ns3tool, along with full performance analysis and simulation support.