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statistics

Statistics of WLAN node

Since R2023a

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Download Required: To use statistics, first download the Communications Toolbox Wireless Network Simulation Library add-on.

Syntax

nodeStatistics = statistics(nodeObj)
nodeStatistics = statistics(nodeObj,"all")

Description

example

nodeStatistics = statistics(nodeObj) returns the node statistics of the input nodeObj as a structure. If you specify nodeObj as an array of nodes, the function returns an array of structures containing the statistics of each node.

example

nodeStatistics = statistics(nodeObj,"all") returns additional statistics as well as the default ones that the previous syntax returns.

Examples

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This example uses:

Open Live Script

This example shows how to simulate a wireless local area network (WLAN) by using WLAN Toolbox™ with the Communications Toolbox™ Wireless Network Simulation Library.

Using this example, you:

  1. Create and configure a WLAN with an access point (AP) node and a station (STA) node.

  2. Add application traffic from the AP node to the STA node.

  3. Simulate the WLAN and retrieve the statistics of the AP node and the STA node.

Check if the Communications Toolbox™ Wireless Network Simulation Library support package is installed. If the support package is not installed, MATLAB® returns an error with a link to download and install the support package.

wirelessnetworkSupportPackageCheck;

Create a wireless network simulator.

networksimulator = wirelessNetworkSimulator.init();

Create a wlanDeviceConfig object, setting the mode to "AP". Use this configuration to create a WLAN node, specifying its name and position.

deviceCfg = wlanDeviceConfig(Mode="AP");
apNode = wlanNode(Name="AP",Position=[0 10 0],DeviceConfig=deviceCfg);

Create a WLAN node with the default device configuration. Confirm that the default mode is STA.

staNode = wlanNode(Name="STA",Position=[5 0 0]);
disp(staNode.DeviceConfig.Mode)
STA

Associate the STA node with the AP node.

associateStations(apNode,staNode);

Create a networkTrafficOnOff object to generate an On-Off application traffic pattern. Specify the data rate in kilobits per second and the packet size in bytes. Enable packet generation to generate an application packet with a payload.

traffic = networkTrafficOnOff(DataRate=100,PacketSize=10,GeneratePacket=true);

Add application traffic from the AP node to the STA node.

addTrafficSource(apNode,traffic,DestinationNode=staNode);

Add the AP node and STA node to the wireless network simulator.

addNodes(networksimulator,{apNode,staNode});

Set the simulation time in seconds and run the simulation.

simulationTime = 0.05;
run(networksimulator,simulationTime);
Custom channel model is not added. Using free space path loss (fspl) model as the default channel model.

Get and display the physical layer (PHY) statistics that correspond to the AP node and STA node.

apStats = statistics(apNode);
staStats = statistics(staNode);
disp(apStats.PHY)
         TransmittedPackets: 126
    TransmittedPayloadBytes: 4095
            ReceivedPackets: 125
       ReceivedPayloadBytes: 1750
             DroppedPackets: 0

disp(staStats.PHY)
         TransmittedPackets: 125
    TransmittedPayloadBytes: 1750
            ReceivedPackets: 126
       ReceivedPayloadBytes: 4095
             DroppedPackets: 0

Input Arguments

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WLAN node object, specified as a wlanNode object or an array of wlanNode objects. When you specify an array of objects, the function returns an array of structures.

Output Arguments

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Statistics of the WLAN node, returned as a structure or an array of structures. For more information about this output, see WLAN System-Level Simulation Statistics.

Data Types: struct

Version History

Introduced in R2023a

See Also

Objects