Communications System Toolbox

Design and simulate the physical layer of communications systems

Communications System Toolbox™ provides algorithms and apps for the analysis, design, end-to-end simulation, and verification of communications systems in MATLAB® and Simulink®. Toolbox algorithms, including channel coding, modulation, MIMO, and OFDM, enable you to compose a physical layer model of your system. You can simulate your models to measure performance.

The system toolbox provides constellation and eye diagrams, bit-error-rate, and other analysis tools and scopes for validating your designs. These tools enable you to analyze signals, visualize channel characteristics, and obtain performance metrics such as error vector magnitude (EVM). Channel and RF impairment models and compensation algorithms, including carrier and symbol timing synchronizers, enable you to realistically model your link-level specifications and compensate for the effects of channel degradations.

Using Communications System Toolbox hardware support packages, you can connect your transmitter and receiver models to radio devices and verify your designs with over-the-air testing. The system toolbox supports fixed-point arithmetic and C or HDL code generation.

Algorithms are available as MATLAB functions, System objects, and Simulink blocks.

Communications Modeling

Create, import, display, export, and manage signals

System Design

Subcomponents of a communications system

Channel Modeling and RF Impairments

AWGN, Rayleigh, Rician, MIMO, phase noise, frequency offset, nonlinearities

Measurements and Analysis


Code Generation

Simulation acceleration and code generation

Simulation Acceleration Using GPUs

Turbo, LDPC, Viterbi, Convolutional Coding

Supported Hardware

Support for third-party hardware, such as Xilinx®, RTL-SDR, and USRP® radios