Communications Toolbox 4.4

Introduction

Communications Toolbox extends the MATLAB technical computing environment with functions, plots, and a graphical user interface (GUI) for exploring, designing, analyzing, and simulating algorithms for the physical layer of communication systems.

You can execute Communications Toolbox functions from the MATLAB command line, the BERTool GUI, and with your custom MATLAB scripts and functions. The MATLAB editor/debugger and graphical user interface development environment (GUIDE) accelerate the development of your system simulations.

Communications Toolbox helps you create algorithms for commercial or defense systems, such as mobile handsets and base stations, wired and wireless local area networks, and digital subscriber lines. You can also use it in research and education for communication systems engineering.

Key Features

• Functions for designing the physical layer of communications links, including source coding, channel coding, interleaving, modulation, channel models, and equalization
• Graphical plots for visualizing communications signals, such as eye diagrams, constellations, and channel scattering functions
• Graphical user interface for comparing the bit error rate of your system with a wide variety of proven analytical results
• Standard channel models COST 207, GSM/EDGE, and HF ionospheric, for rapidly evaluating system performance under a wide variety of propagation conditions
• Channel visualization tool for visualizing and exploring time-varying communications channels

A plot from the scatterplot function that displays the constellation of a received complex baseband signal (far left). A received constellation shown pre- and post-equalization using a six-tap fractionally spaced forward filter and two feedback weights (center). A plot from the eyediagram object that displays the quality of an equalized complex baseband signal (left). Click on image to see enlarged view.