Wireless Communications

Multi-beam and electronically steerable antennas, hybrid and full digital beamforming for massive MIMO and mmWave systems, satellite communications

MIMO communication is a technique for improving the transmission and reception of signals over a channel by exploiting multipath propagation. Some examples MIMO communications are presented in this section.

Combine multiple-input-multiple-output (MIMO) processing and orthogonal frequency division multiplexing (OFDM) techniques together with beamforming to improve the received signal-to noise-ratio (SNR). Improved SNR reduces the bit error rate.
Use antenna arrays to improve the SNR and capacity of a wireless link.
Send multiple data streams through a scatter-rich channel by using a set of precoding and combining weights derived from the channel matrix. Each data stream can be independently recovered.
Employ hybrid beamforming at the transmit end of a massive MIMO communications system, applicable to both multi-user and single-user systems.

Topics

Modeling RF mmWave Transmitter with Hybrid Beamforming (RF Blockset)
Model and simulate a 66 GHz QPSK RF transmit and receive system with a 32-element hybrid beamforming antenna.
Wireless Digital Video Broadcasting with RF Beamforming (RF Blockset)
Model a digital video broadcasting system which includes a 16 antenna phased array receiver operating at 28 GHz.
Modeling and Simulation of MIMO RF Receiver Including Beamforming (RF Blockset)
Model a MIMO RF receiver with a baseband beamforming algorithm.
Model RF Systems with Antenna Arrays Using RF Blockset Antenna Block (RF Blockset)
Use the Antenna block to design antenna arrays for an RF system.

Featured Examples

Beamforming for MIMO-OFDM Systems

Model a point-to-point MIMO-OFDM system with beamforming. The combination of multiple-input-multiple-output (MIMO) and orthogonal frequency division multiplexing (OFDM) techniques have been adopted in recent wireless standards, such as 802.11x families, to provide higher data rate. Because MIMO uses antenna arrays, beamforming can be adopted to improve the received signal to noise ratio (SNR) which in turn reduces the bit error rate (BER).

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Hybrid MIMO Beamforming with QSHB and HBPS Algorithms

Presents a Simulink® model of a multiple input multiple output (MIMO) wireless communication system. The wireless system uses hybrid beamforming technique to improve system throughput.

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Improve SNR and Capacity of Wireless Communication Using Antenna Arrays

The goal of a wireless communication system is to serve as many users with the highest possible data rate given constraints such as radiation power limit and operating budget. To improve the data rate, the key is to improve the signal to noise ratio (SNR). To serve more users, the key is to reuse the resources. Over the last several decades, numerous algorithms have been adopted to improve the SNR and reuse the resources in time, frequency, and coding spaces. This example shows how the adoption of antenna arrays can help improve the SNR and capacity of a wireless link.

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Introduction to Hybrid Beamforming

Introduces the basic concept of hybrid beamforming and shows how to simulate such a system.

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Introduction to Reconfigurable Intelligent Surfaces (RIS)

How a RIS can help improve the target detection when the target is outside a radar's field of view.

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New

Radar Sensing with Reconfigurable Intelligent Surfaces (RIS)

How a RIS can help improve the target detection when the target is outside a radar's field of view.

Since R2024b
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Massive MIMO Hybrid Beamforming

How hybrid beamforming is employed at the transmit end of a massive MIMO communications system, using techniques for both multi-user and single-user systems.

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MIMO-OFDM Precoding with Phased Arrays

How phased arrays are used in a MIMO-OFDM communication system employing beamforming. Using components from Communications Toolbox™ and Phased Array System Toolbox™, it models the radiating elements that comprise a transmitter and the front-end receiver components, for a MIMO-OFDM communication system. With user-specified parameters, you can validate the performance of the system in terms of bit error rate and constellations for different spatial locations and array sizes.

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802.11ad Waveform Generation with Beamforming

Beamform an IEEE® 802.11ad™ DMG waveform with a phased array using WLAN Toolbox™ and Phased Array System Toolbox™.

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802.11ad Single Carrier Link with RF Beamforming in Simulink

Model an IEEE 802.11ad™ single carrier link in Simulink® which includes a phased array antenna with RF beamforming. This example requires the following products:

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802.11az Three-Dimensional Tracking Using Time of Arrival Estimation

Use an IEEE 802.11az Wi-Fi network to track Wi-Fi devices in a three-dimensional space using time of arrival (TOA) estimation.

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NR Downlink Transmit-End Beam Refinement Using CSI-RS

Transmit multiple CSI-RS resources in different directions in a scattering environment.

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CDL Channel Model Customization with Ray Tracing

Customize the CDL channel model parameters by using the output of ray tracing analysis.

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NR SSB Beam Sweeping

Employ beam sweeping at both the transmitter (gNB) and receiver (UE) ends of a 5G NR system.

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Neural Network for Beam Selection

Use a neural network based only on receiver location to reduce the overhead in the beam selection task.

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Interference from Satellite Constellation on Communications Link

Analyze interference on a downlink from a constellation of satellites.

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Evaluating Interference from 5G New Radio (NR) Signals at an Airport Surveillance Radar

Model an air traffic control radar which operates in the vicinity of a 5G base station.

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Aircraft-to-Satellite Communication for ADS-B Out

The Automatic Dependent Surveillance-Broadcast (ADS-B) Out connects to a variety of targets including airports and the Iridium NEXT satellite constellation.

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Iridium Satellite Spot Beam Coverage on the US

Generate and visualize Iridium satellite spot beams on the US map.

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New

Modeling Impairments in Phased Arrays with Hybrid Architectures

In a hybrid phased array system, analyze impairments to a modulated base-band signal of an RF system using the Phased Array System Toolbox™, RF Toolbox™ and Communications Toolbox™.

Since R2024b
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