System-Level Simulation

Multinode networks, protocol stack, multilayer processing

WLAN Toolbox™ system-level simulations model communication links with multiple nodes. The simulations operate across a protocol stack that includes physical (PHY), medium access control (MAC), and application layers. You can measure quantities such as throughput, latency, interference, and packet loss at the node and network levels. You can also investigate coexistence of WLAN signals with Bluetooth^®signals and improve simulation efficiency by using PHY abstraction techniques.

Functions

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Application Traffic Pattern

`networkTrafficFTP`	FTP application traffic pattern generator
`networkTrafficOnOff`	On-Off application traffic pattern generator
`networkTrafficVoIP`	VoIP application traffic pattern generator
`networkTrafficVideoConference`	视频会议应用程序流量模式情况ator

PCAP File Writing

`pcapWriter`	PCAP file writer of protocol packets
`pcapngWriter`	PCAPNG file writer of protocol packets
`wlanPCAPWriter`	PCAP or PCAPNG file writer of WLAN MAC packets

Topics

WLAN Node Composition and Configuration
View APP, MAC, PHY and channel configuration parameters of a WLAN node.
Statistics Captured in WLAN System-Level Simulation
View the statistics captured in WLAN system-level simulation.
Create and Visualize 802.11ax Multinode Residential Scenario
Model and visualize an IEEE^®802.11ax™ multinode residential scenario.
Configure Uplink and Downlink Traffic at 802.11ax Access Point
Configure uplink and downlink traffic at 802.11ax access point.
MAC and PHY Layer Abstraction in System-Level Simulation
Explore MAC and PHY Layer Abstraction in WLAN System-Level Simulation .
Visualize Node State Transitions in 802.11ax System-Level Simulation
Visualize the node state transitions in an IEEE 802.11ax system-level simulation.

Featured Examples

Get Started with WLAN System-Level Simulation in MATLAB

Create a multinode WLAN system-level simulation consisting of an IEEE 802.11ax access point (AP) and a station (STA) by using WLAN Toolbox.

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802.11ax Downlink OFDMA Multinode System-Level Simulation

Model and simulate WLAN multinode downlink OFDMA network.

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802.11ax Multinode System-Level Simulation of Residential Scenario Using MATLAB

Model an IEEE 802.11ax residential scenario.

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Noncollaborative Bluetooth LE Coexistence with WLAN Signal Interference

Simulate Bluetooth LE noncollaborative coexistence with WLAN interference.

Open Live Script

Spatial Reuse with BSS Coloring in 802.11ax Residential Scenario

演示了如何模拟空间的影响reuse (SR) with basic service set (BSS) coloring on the throughput of an IEEE Std 802.11ax™ residential scenario network using SimEvents®, Stateflow®, and WLAN Toolbox™. This example simulates non-spatial reuse groups overlapping BSS packet detect (OBSS PD) defined in IEEE Std 802.11ax™-2021 [ 1 ]. The fundamental objective of this feature is to increase the network performance in a dense network scenario by maximizing the frequency reuse between BSSs. This is achieved by adjusting OBSS PD threshold in the range [-62, -82] dBm. Each BSS is assigned a unique color code called BSS color. The BSS color enables 802.11ax station (STA) to decide whether the simultaneous use of frequency spectrum along with the OBSS is allowed or not. This results in ignoring the frames from OBSS and enables concurrent transmission of data to multiple devices in a dense network scenario mitigating the exposed node problem. To demonstrate the SR with BSS coloring feature, the example models a network topology consisting of four BSSs in a residential apartment of two floors. Each floor contains two BSSs and each BSS consists of an access point (AP) and a STA. The model enables you to configure the OBSS PD threshold values in the range [-62, -82] dBm and study its impact on the throughput of each BSS. You can also write your own algorithm to control OBSS PD threshold levels dynamically during the simulation.

Open Model

802.11ax Downlink Throughput Comparison of OFDM and OFDMA Through System-level Simulation

Configure and simulate multinode downlink OFDM and OFDMA IEEE 802.11ax transmissions.

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802.11 MAC and Application Throughput Measurement

Measure MAC and application layer throughput in a multinode IEEE 802.11™ network by using SimEvents^®, Stateflow^®, and WLAN Toolbox.

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802.11 MAC QoS Traffic Scheduling

Simulate MAC QoS traffic scheduling in an IEEE 802.11 network by using SimEvents, Stateflow, and WLAN Toolbox.

Open Model

802.11ax System-Level Simulation with Physical Layer Abstraction

Model a multinode IEEE 802.11ax network with abstracted PHY by using SimEvents and Stateflow.

Open Model

802.11ax PHY-Focused System-Level Simulation

Perform a PHY-focused system-level simulation for IEEE 802.11ax. Validate the simulation and estimate the network PER.

Open Script

Physical Layer Abstraction for System-Level Simulation

Demonstrates IEEE 802.11ax physical layer abstraction for system-level simulation.

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Generate and Visualize FTP Application Traffic Pattern

Generate and visualize an FTP traffic pattern based on the IEEE 802.11ax evaluation methodology.

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