Get Started with Communications Toolbox
Communications Toolbox™ provides algorithms and apps for the analysis, design, end-to-end simulation, and verification of communications systems. Toolbox algorithms including channel coding, modulation, MIMO, and OFDM enable you to compose and simulate a physical layer model of your standard-based or custom-designed wireless communications system.
The toolbox provides a waveform generator app, constellation and eye diagrams, bit-error-rate, and other analysis tools and scopes for validating your designs. These tools enable you to generate and analyze signals, visualize channel characteristics, and obtain performance metrics such as error vector magnitude (EVM). The toolbox includes SISO and MIMO statistical and spatial channel models. Channel profile options include Rayleigh, Rician, and WINNER II models. It also includes RF impairments, including RF nonlinearity and carrier offset and compensation algorithms, including carrier and symbol timing synchronizers. These algorithms enable you to realistically model link-level specifications and compensate for the effects of channel degradations.
Using Communications Toolbox with RF instruments or hardware support packages, you can connect your transmitter and receiver models to radio devices and verify your designs with over-the-air testing.
Simulating a Communications Link
Communications Toolbox features build upon the MATLAB® computational and visualization tools, enabling you to use higher level functions when simulating communications systems.
This example shows you how to model a communications system with quadrature amplitude modulation (QAM), additive white Gaussian noise (AWGN) channel, and phase noise using Simulink®.
This example shows how to simulate a basic communication system in which the signal is first QPSK modulated and then subjected to Orthogonal Frequency Division Multiplexing.
This example uses Parallel Computing Toolbox™ to accelerate a simple, QPSK bit error rate (BER) simulation.
Create, impair, visualize, and export modulated waveforms.
Visualization and Measurements
Learn how to use the Bit Error Rate Analysis app.
This example shows how to visualize signal behavior through the use of eye diagrams and scatter plots.
This example shows how to compute error vector magnitude (EVM) and modulation error rate (MER) measurements using Simulink® blocks.
This example shows how to measure the adjacent channel power ratio (ACPR) from a baseband, 50 kbps QPSK signal.
Visualize coverage maps, SINR maps, and propagation paths in outdoor and indoor environments.
About Communications System Modeling
- Configure the Simulink Environment for Communications Models
Learn how to configure the Simulink® environment for communications simulation automatically.