System-Level Simulation

5G NR multinode communications

5G Toolbox™ system-level simulations model multinode networks. The simulations operate across a protocol stack that includes physical (PHY), medium access control (MAC), radio link control (RLC), and application layers. 5G Toolbox enables you to model a New Radio (NR) waveform by using PHY and channel modeling features or abstracted PHY with link-to-system mapping. You can evaluate the network performance with different data traffic models, MAC scheduling strategies, and PHY algorithms. You can also analyze the effect of intercell interference, measure quantities like throughput, scheduling fairness, block error rate (BLER), and spectrum efficiency, and use visualization capabilities to explore the performance of the network. In addition, you can export protocol packets to packet capture (PCAP) and packet capture next generation (PCAPNG) files for network analysis.

To use the network simulation functionality with 5G Toolbox, install the Communications Toolbox Wireless Network Simulation Library add-on.

Functions

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5G Network Simulation

Node and Network Simulator

`wirelessNetworkSimulator`	Wireless network simulator (Since R2022b)
`nrGNB`	5G NR base station node (Since R2023a)
`nrUE`	5G NR user equipment (UE) node (Since R2023a)
`nrRLCBearerConfig`	RLC bearer configuration parameters (Since R2023a)

Traffic Models

`networkTrafficOnOff`	On-Off application traffic pattern generator (Since R2022a)
`networkTrafficVoIP`	VoIP application traffic pattern generator (Since R2020b)
`networkTrafficVideoConference`	Video conference application traffic pattern generator (Since R2021a)
`networkTrafficFTP`	FTP application traffic pattern generator (Since R2020b)

Logging and Analysis

`pcapReader`	PCAP file reader of protocol packets (Since R2021b)
`pcapWriter`	PCAP file writer of protocol packets (Since R2020b)
`pcapngWriter`	PCAPNG file writer of protocol packets (Since R2020b)
`nrPCAPWriter`	PCAP or PCAPNG file writer of 5G NR MAC packets (Since R2021b)

Packet Encoding and Decoding

`nrMACBSR`	Generate BSR MAC CE (Since R2021b)
`nrMACBSRDecode`	Decode BSR MAC CE (Since R2022a)
`nrMACPDUDecode`	Decode MAC PDU (Since R2022b)
`nrMACSubPDU`	Generate NR MAC subPDU (Since R2022a)

Topics

Overview of 5G System-Level Simulation
Learn about various aspects of 5G System-level simulation. (Since R2024a)
Composition of NR Nodes
Learn about the composition of NR nodes.
Communication Between gNB and UE Nodes
Learn about the communication flow between the gNB and UE nodes.
NR Node Statistics
Learn about NR node statistics. (Since R2024a)
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.
Simulation Visualizations
Learn about various simulations visualization across MAC, RLC, and PHY layers.

Featured Examples

New

Evaluate 3GPP Indoor Reference Scenario

Model, simulate, and evaluate the system-level performance of a 3GPP enhanced mobile broadband (eMBB) indoor hotspot (InH) scenario.

Since R2024a

Open Live Script

NR Cell Performance Evaluation with MIMO

Model a 5G new radio cell with MIMO antenna configurations and evaluate network performance.

Open Live Script

NR Cell Performance with Downlink MU-MIMO

Evaluate the system performance of a codebook-based downlink multi-user (MU)-MIMO.

Open Live Script

NR Interference Modeling with Toroidal Wrap-Around

Evaluate the performance of a 19-cell cluster with toroidal wrap-around.

Open Live Script

NR Intercell Interference Modeling

Model intercell downlink interference caused by gNBs in a network of co-channel cells and evaluate the network performance.

Open Live Script

NR FDD Scheduling Performance Evaluation

Evaluate the performance of a scheduling strategy in FDD mode to assign uplink and downlink resources with RLC UM and LCP.

Open Live Script

NR Cell Performance Evaluation with Physical Layer Integration

Model a cell by integrating the higher layers of the stack with 5G Toolbox PHY processing and evaluate the performance.

Open Live Script

NR Cell Performance Evaluation with Beam Management

Model a 5G new radio cell with transmit-end beam refinement in DL direction and evaluate network performance.

Open Live Script

NR TDD Symbol Based Scheduling Performance Evaluation

Implement a symbol based scheduling scheme in TDD mode and evaluate the network performance.

Open Live Script

Plug In Custom Scheduler in System-Level Simulation

Create and integrate a custom scheduling strategy into system-level simulation framework and observe the network performance.

Open Live Script

Generate and Visualize FTP Application Traffic Pattern

Generate an FTP application traffic pattern based on the IEEE^® 802.11ax™ Evaluation Methodology and 3GPP TR 36.814 specification.

Open Live Script