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Multiple-Input Multiple-Output (MIMO)

MIMO channels, OSTBC, sphere decoding

Communications System Toolbox provides System objects™ and blocks for modeling generic and LTE-specific MIMO channels, and for encoding, combining, and decoding MIMO signals.

System Objects

comm.MIMOChannel Filter input signal through MIMO multipath fading channel
comm.LTEMIMOChannel Filter input signal through LTE MIMO multipath fading channel
comm.OSTBCCombiner Combine inputs using orthogonal space-time block code
comm.OSTBCEncoder Encode input using orthogonal space-time block code
comm.SphereDecoder Decode input using sphere decoder


MIMO Channel Filter input signal through MIMO multipath fading channel
OSTBC Combiner Combine inputs for received signals and channel estimate according to orthogonal space-time block code (OSTBC)
OSTBC Encoder Encode input message using orthogonal space-time block code (OSTBC)
Sphere Decoder Decode input using a sphere decoder


Multiple-Input Multiple-Output (MIMO)

Learn about multiple-input multiple-output features of the Communications System Toolbox™ software

Examples and How To

Introduction to MIMO Systems

This example shows Multiple-Input-Multiple-Output (MIMO) systems, which use multiple antennas at the transmitter and receiver ends of a wireless communication system.

Spatial Multiplexing

This example shows spatial multiplexing schemes wherein the data stream is subdivided into independent sub-streams, one for each transmit antenna employed.

Concatenated OSTBC with TCM

This example shows an orthogonal space-time block code (OSTBC) concatenated with trellis-coded modulation (TCM) for information transmission over a multiple-input multiple-output (MIMO) channel with 2 transmit antennas and 1 receive antenna.

Adaptive MIMO System with OSTBC

This model shows an adaptive orthogonal space-time block code (OSTBC) transceiver system over a multiple-input multiple-output (MIMO) channel.

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