系统级仿真

DLL、MAC 子层、LLC 子层和多节点通信

开发表示单链路仿真或多节点网络仿真的系统级设计的通信系统模型。

对跨开放系统互连 (OSI) 参考模型协议栈运行的系统进行建模，包括第 1 层的物理层 (PHY)、第 2 层的数据链路层 (DLL) 和第 3 层的网络层。DLL 识别网络协议类型，提供差错控制，并组合数据帧以供 PHY 层传输。DLL 的介质访问控制 (MAC) 和逻辑链路控制 (LLC) 子层负责在共享同一信道的两个节点之间提供无错误的链路。
在系统级仿真中发送和接收无线波形。
在使用行为 PHY 层模型的系统级仿真中发送和接收数据包。
使用不同数据流量模型、调度策略和 PHY 算法评估网络性能。
分析共存、干扰和信道损伤的影响。
测量吞吐量、调度公平性、误块率 (BLER) 和频谱效率等各项指标的量。
使用可视化功能了解网络性能。

要将网络仿真功能与 5G Toolbox、WLAN Toolbox 或 Bluetooth Toolbox 结合使用，请下载并安装 Communications Toolbox Wireless Network Simulation Library 附加功能。

对象

`networkTrafficFTP`	FTP application traffic pattern generator
`networkTrafficOnOff`	On-Off application traffic pattern generator (自 R2022a 起)
`networkTrafficVideoConference`	Video conference application traffic pattern generator (自 R2021a 起)
`networkTrafficVoIP`	VoIP application traffic pattern generator
`wirelessNetworkSimulator`	Wireless network simulator (自 R2022b 起)

主题

Wireless Network Simulator
Learn how the wireless network simulator object works.
Plug Custom Channel into Wireless Network Simulator
Learn how to plug a custom channel into the wireless network.
Composition of NR Nodes (5G Toolbox)
Learn about the composition of NR nodes.
Communication Between gNB and UE Nodes (5G Toolbox)
Learn about the communication flow between the gNB and UE nodes.
Generate Periodic, Bursty, and Random Traffic in Wireless Network
Learn how to generate periodic and bursty traffic.
NR Cell Performance Evaluation with MIMO (5G Toolbox)
Model a 5G New Radio cell with TDD or FDD and MIMO antenna configurations, and evaluate its network performance.
Estimate Packet Delivery Ratio of LE Broadcast Audio in Residential Scenario (Bluetooth Toolbox)
Estimate packet delivery ratio of Bluetooth LE audio isochronous broadcast streams in a residential scenario.
Noncollaborative Bluetooth LE Coexistence with WLAN Signal Interference (WLAN Toolbox)
Simulate Bluetooth LE noncollaborative coexistence with WLAN interference.
Get Started with WLAN System-Level Simulation in MATLAB (WLAN Toolbox)
Create a multinode WLAN system-level simulation consisting of an IEEE^® 802.11ax™ access point (AP) and a station (STA) by using WLAN Toolbox™.
Evaluate the Performance of Scheduler in a Bluetooth BR/EDR Piconet (Bluetooth Toolbox)
Evaluate the performance of the Bluetooth scheduler by implementing multiple applications with different QoS requirements in a home environment.

精选示例

Generate and Visualize FTP Application Traffic Pattern

Generate a file transfer protocol (FTP) application traffic pattern based on the IEEE 802.11ax Evaluation Methodology and the 3GPP TR 36.814 specification.