WLAN Toolbox™ Release Notes

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WLAN Toolbox™ Release Notes
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 Contents

R2020a

IEEE 802.11ax Draft 4.1 Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2

IEEE 802.11ax Trigger-Based Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2

Data Recovery Functions Using New Multicore LDPC Decoding

Algorithms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2

Transmit and Receive Signals with Unlimited Antennas . . . . . . . . . . . . . . 1-2

Blindly Detect, Decode, and Analyze Packets in Recovered Waveform . . . 1-2

Multinode 802.11ax Downlink Throughput Comparison of OFDM and

OFDMA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3

Single-Precision Support in WLAN Channel Models . . . . . . . . . . . . . . . . . 1-3

Wireless Waveform Generator App Update . . . . . . . . . . . . . . . . . . . . . . . . . 1-3

Functionality Being Removed or Changed . . . . . . . . . . . . . . . . . . . . . . . . . 1-3

wlanRecoveryConfig will be removed . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3

R2019b

IEEE 802.11ax Signal Recovery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2

IEEE 802.11ax Packet Extension . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2

Detect Format of IEEE 802.11 Waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2

Calculate PSDU and APEP Length from Transmission Time . . . . . . . . . . . 2-2

System-Level Simulation of IEEE 802.11 Networks . . . . . . . . . . . . . . . . . . 2-2

IEEE 802.11ax RU Visualization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2

Wireless Waveform Generator App Updates . . . . . . . . . . . . . . . . . . . . . . . . 2-2

iii
 R2019a

IEEE 802.11ax Signal Recovery Functions: Decode L-SIG and HE-SIG-A

fields . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2

IEEE 802.11ay Support: Simulate 802.11ay propagation conditions . . . . 3-2

Wireless Waveform Generator App Updates . . . . . . . . . . . . . . . . . . . . . . . . 3-2

MAC Frame Parser Functions: Deaggregate A-MPDUs and decode MPDUs

.......................................................... 3-2

IEEE 802.11ax Draft 3.1 Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2

System-Level Simulation Examples: Simulate a WLAN network . . . . . . . . 3-2

R2018b

IEEE 802.11ax Support: Generate IEEE 802.11ax (Draft 2.0) high-

efficiency (HE) waveforms and simulate end-to-end links . . . . . . . . . . . 4-2

Wireless Waveform Generator App: Create, impair, visualize, and export

modulated waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2

MAC Frame Support: Generate data, management, and control frames

.......................................................... 4-2

IEEE TGay Channel Model Example: Simulate an end-to-end, DMG format

WLAN link over a TGay millimeter wave channel . . . . . . . . . . . . . . . . . . 4-2

IEEE 802.11ad RF Beamforming Example: Simulate an end-to-end, DMG

format WLAN link with RF beamforming . . . . . . . . . . . . . . . . . . . . . . . . 4-2

IEEE 802.11p V2V Link Example: Simulate an end-to-end link over a

vehicular channel model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3

Functionality Being Removed or Changed . . . . . . . . . . . . . . . . . . . . . . . . . 4-3

R2018a

IEEE 802.11ax Examples: Generate IEEE 802.11ax high efficiency (HE)

waveforms and simulate downlink end-to-end links . . . . . . . . . . . . . . . . 5-2

IEEE TGax Indoor Channel Model: Simulate indoor 802.11ax propagation

conditions for both single and multiuser scenario . . . . . . . . . . . . . . . . . 5-2

iv Contents
IEEE 802.11ad Single Carrier PHY Example: Simulate an end-to-end,
DMG format WLAN link over an AWGN with synchronization and
equalization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2

IEEE 802.11ad Extended MCS Support: Generate IEEE 802.11ad

waveforms with the extended modulation and coding schemes (MCS)
for the single carrier PHY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2

R2017b

IEEE 802.11ad Receiver: Demodulate and decode directional multi-

gigabit waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2

IEEE 802.11ah Example: Simulate an end-to-end sub 1 GHz link with the
TGah channel model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2

Simulink Example: Model a WLAN link in Simulink . . . . . . . . . . . . . . . . . 6-2

Bit-Level Processing Functions: Explore standard-compliant bit-level

algorithms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2

R2017a

IEEE 802.11ad Support: Generate IEEE 802.11ad compliant waveforms

.......................................................... 7-2

IEEE TGah Indoor Channel Model: Simulate 802.11ah propagation

conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2

OFDM Timing Synchronization: Detect and estimate symbol timing

offsets in a received OFDM signal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2

MATLAB Compiler Support: Compile WLAN models into standalone

applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2

Scrambler Bit Mapping Change: Mapping of scrambler initialization seed

is swapped . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2

R2016b

IEEE 802.11ah Support: Generate IEEE 802.11ah compliant waveforms

.......................................................... 8-2

v
 Multiuser-MIMO Receiver: Decode and analyze 802.11ac multiuser
waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-2

LDPC Channel Coding: Analyze the performance of 802.11ac/n links

using low-density parity-check (LDPC) channel coding techniques . . . 8-2

Beacon Frame Generation Example: Create Beacon frames for receiver

testing and over-the-air transmission . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-2

Productize functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-2

R2016a

Support for 802.11p Standard: Simulate 802.11p systems to analyze

Intelligent Transportation Systems (ITS) applications . . . . . . . . . . . . . 9-2

Support for 802.11j Standard: Simulate 802.11j systems to analyze

Japanese WiFi market applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-2

Functionality Being Removed or Changed . . . . . . . . . . . . . . . . . . . . . . . . . 9-2

R2015b+

IEEE 802.11ac and 802.11b/a/g/n standard-compliant physical layer

models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-2

Very high throughput (VHT), high throughput (HT-mixed), and legacy

(non-HT) waveform generation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-2

Channel coding, modulation (OFDM, DSSS, CCK), spatial stream

mapping, and MIMO receivers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-2

Channel models, including TGac and TGn . . . . . . . . . . . . . . . . . . . . . . . . 10-2

Measurements including channel power, spectrum mask, EVM, PER, and

occupied bandwidth . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-2

Waveform transmission and reception with radio devices and instruments

......................................................... 10-2

C code generation support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-2

vi Contents
 1

R2020a

Version: 3.0

New Features

Bug Fixes

Compatibility Considerations
R2020a

IEEE 802.11ax Draft 4.1 Support

Generate high-efficiency single-user (HE SU) null data packets (NDPs) with preamble puncturing, as
defined in IEEE® P802.11ax™/D4.1, by using the wlanWaveformGenerator function with the
updated wlanHESUConfig object.

IEEE 802.11ax Trigger-Based Format

Configure and generate high-efficiency trigger-based (HE TB) waveforms by using the
wlanWaveformGenerator function with the wlanHETBConfig object.

Demodulate and decode HE TB waveforms by using the wlanHEDemodulate and

wlanHEDataBitRecover functions.

The updated “802.11ax Packet Error Rate Simulation for Uplink Trigger-Based Format” example
demonstrates minimum-mean-square-error-based ordered successive interference cancellation
(MMSE-SIC) equalization.

Data Recovery Functions Using New Multicore LDPC Decoding

Algorithms
Reduce simulation times by using low-density parity-check (LDPC) decoding with multicore
processing in these data recovery functions: wlanDMGDataBitRecover,
wlanDMGHeaderBitRecover, wlanHEDataBitRecover, wlanHTDataRecover, and
wlanVHTDataRecover.

These functions support the layered belief propagation, normalized min-sum, and offset min-sum
LDPC decoding algorithms.

Transmit and Receive Signals with Unlimited Antennas

Transmit and receive WLAN signals with an arbitrary number of antennas for any of these formats.

• HE SU
• HE extended range SU (HE ER SU)
• HE multi-user (HE MU)
• HE TB
• Very high throughput (VHT)
• High throughput (HT)
• Non-HT

Filter a signal through a multipath fading channel with an arbitrary number of links by using these
updated channel models: wlanTGacChannel, wlanTGahChannel, wlanTGaxChannel, and
wlanTGnChannel.

Blindly Detect, Decode, and Analyze Packets in Recovered Waveform

The “Recover and Analyze Packets in 802.11ax Waveform” example demonstrates how to detect,
decode, and analyze 802.11a™ and 802.11ax packets in a recovered waveform. The receiver can

1-2
decode OFDM non-HT, HE MU, HE SU, and HE ER SU packets without knowledge of any
transmission parameters aside from the channel bandwidth. You can configure the example to
capture over-the-air waveforms by using software-defined radio (SDR) devices.

Multinode 802.11ax Downlink Throughput Comparison of OFDM and

OFDMA
The “802.11ax Downlink Throughput Comparison of OFDM and OFDMA Through System-level
Simulation” example shows how to configure and simulate multinode downlink OFDM and OFDMA
802.11ax transmissions by using SimEvents®, Stateflow®, and WLAN Toolbox software.

Single-Precision Support in WLAN Channel Models

Reduce simulation times and memory consumption by specifying applicable properties of these
channel models with single precision: wlanTGacChannel, wlanTGahChannel, wlanTGaxChannel,
and wlanTGnChannel.

Wireless Waveform Generator App Update

Generate HE waveforms with packet extension by using the Wireless Waveform Generator app.

Functionality Being Removed or Changed

wlanRecoveryConfig will be removed
Warns

The wlanRecoveryConfig object will be removed in a future release.

Starting in R2020a, all functions that support a wlanRecoveryConfig object as an input argument
now support name-value pair arguments corresponding to the properties of the object. To
parameterize an affected function, use one or more these name-value pairs instead of a
wlanRecoveryConfig object. This table lists the affected functions, their syntaxes that are no
longer recommended, and the recommended replacement syntax for each case.

Function Not Recommended Recommended

wlanFormatDetect wlanFormatDetect(rxSig,c wlanFormatDetect(rxSig,c
hEst,noiseVarEst,cbw,cfg hEst,noiseVarEst,cbw,Nam
Rec), where cfgRec is a e,Value), where Name,Value
wlanRecoveryConfig object specifies one or more name-
value pair arguments
wlanHTDataRecover wlanHTDataRecover(rxSig, wlanHTDataRecover(rxSig,
chEst,noiseVarEst,cfg,cf chEst,noiseVarEst,cfg,Na
gRec), where cfgRec is a me,Value), where
wlanRecoveryConfig object Name,Value specifies one or
more name-value pair
arguments

1-3
R2020a

Function Not Recommended Recommended

wlanHTSIGRecover wlanHTSIGRecover(rxSig,c wlanHTSIGRecover(rxSig,c
hEst,noiseVarEst,cbw,cfg hEst,noiseVarEst,cbw,Nam
Rec), where cfgRec is a e,Value), where Name,Value
wlanRecoveryConfig object specifies one or more name-
value pair arguments
wlanLSIGRecover wlanLSIGRecover(rxSig,ch wlanLSIGRecover(rxSig,ch
Est,noiseVarEst,cbw,cfgR Est,noiseVarEst,cbw,Name
ec), where cfgRec is a ,Value), where Name,Value
wlanRecoveryConfig object specifies one or more name-
value pair arguments
wlanNonHTDataRecover wlanNonHTDataRecover(rxS wlanNonHTDataRecover(rxS
ig,chEst,noiseVarEst,cfg ig,chEst,noiseVarEst,cfg
,cfgRec), where cfgRec is a ,Name,Value), where
wlanRecoveryConfig object Name,Value specifies one or
more name-value pair
arguments
wlanVHTDataRecover wlanVHTDataRecover(__,cf wlanVHTDataRecover(__,Na
gRec), where cfgRec is a me,Value), where
wlanRecoveryConfig object Name,Value specifies one or
more name-value pair
arguments
wlanVHTSIGARecover wlanVHTSIGARecover(rxSig wlanVHTSIGARecover(rxSig
,chEst,noiseVarEst,cbw,c ,chEst,noiseVarEst,cbw,N
fgRec), where cfgRec is a ame,Value), where
wlanRecoveryConfig object Name,Value specifies one or
more name-value pair
arguments
wlanVHTSIGBRecover wlanVHTSIGBRecover(__,cf wlanVHTSIGBRecover(__,Na
gRec), where cfgRec is a me,Value), where
wlanRecoveryConfig object Name,Value specifies one or
more name-value pair
arguments

1-4
 2

R2019b

Version: 2.2

New Features
R2019b

IEEE 802.11ax Signal Recovery

Decode the HE-SIG-B common and user fields in a high-efficiency multiuser (HE MU) transmission by
using the wlanHESIGBCommonBitRecover and wlanHESIGBUserBitRecover functions.

IEEE 802.11ax Packet Extension

Generate HE-format packets with packet extension, as specified in Draft 3.1 of the IEEE 802.11ax
standard, by using the wlanWaveformGenerator function with the updated wlanHESUConfig and
wlanHEMUConfig objects.

Detect Format of IEEE 802.11 Waveforms

The wlanFormatDetect function now detects these 802.11ax packet formats in a received
waveform: HE single-user (HE SU), HE extended-range single-user (HE ER SU), HE multiuser (HE
MU), and HE trigger-based (HE TB).

Calculate PSDU and APEP Length from Transmission Time

You can now generate single-user IEEE 802.11™ waveforms for a given transmission duration or
number of symbols.

• Calculate PSDU length by using the wlanPSDULength function.

• Calculate APEP length by using the wlanAPEPLength function.

System-Level Simulation of IEEE 802.11 Networks

These examples show how to simulate multinode 802.11 networks by using SimEvents, Stateflow, and
WLAN Toolbox.

• 802.11 MAC and Application Throughput Measurement – Measure MAC and application layer
throughput in an 802.11a/n/ac/ax network.
• 802.11 MAC QoS Traffic Scheduling – Simulate quality of service (QoS) traffic scheduling in an
802.11a/n/ac/ax network.
• 802.11ax System-Level Simulation with Physical Layer Abstraction and Physical Layer Abstraction
for System-Level Simulation – Model a large 802.11ax network by using physical layer abstraction.

IEEE 802.11ax RU Visualization

Display the resource unit (RU) allocation for HE-format transmissions by using the showAllocation
object function with the wlanHESUConfig and wlanHEMUConfig objects.

Wireless Waveform Generator App Updates

You can now export a WLAN waveform generated using the Wireless Waveform Generator app as a
MATLAB® script with a .m extension. You can recreate the waveform by running the exported script
in MATLAB.

2-2
 3

R2019a

Version: 2.1

New Features
R2019a

IEEE 802.11ax Signal Recovery Functions: Decode L-SIG and HE-SIG-A

fields
You can now decode the L-SIG and HE-SIG-A fields for IEEE 802.11ax format. The 802.11ax Signal
Recovery with Preamble Decoding example shows how to recover single-user and multi-user
802.11ax signals by using the wlanHERecoveryConfig object and the wlanLSIGBitRecover and
wlanHESIGABitRecover functions.

IEEE 802.11ay Support: Simulate 802.11ay propagation conditions

Use the wlanTGayChannel System object™ to simulate 802.11ay™ propagation conditions as
demonstrated in the 802.11ad Packet Error Rate Single Carrier PHY Simulation with TGay Channel
example. The ray-tracing-based channel model, described by Task Group ay, supports antenna array
specification, SU-SISO and SU-MIMO, unpolarized and polarized signals, and beamforming. For more
information, see WLAN Channel Models and Propagation Channel Models.

Wireless Waveform Generator App Updates

With the Wireless Waveform Generator app, you can now:

• Create WLAN waveforms that are compliant with 802.11ax modulation schemes.
• Generate a waveform that you can transmit with a connected lab test instrument. The Wireless
Waveform Generator app can generate waveforms for instruments supported by the rfsiggen
function. Use of the transmit feature in the Wireless Waveform Generator app requires Instrument
Control Toolbox™.

MAC Frame Parser Functions: Deaggregate A-MPDUs and decode

MPDUs
You can now parse WLAN medium access control (MAC) frames. Decode MAC protocol data units
(MPDUs) with the wlanMPDUDecode function and deaggregate aggregated MPDUs (A-MPDUs) with
the wlanAMPDUDeaggregate function.

This feature is demonstrated in the added 802.11 MAC Frame Decoding example and the updated
802.11 OFDM Beacon Receiver with Live Data example.

IEEE 802.11ax Draft 3.1 Support

With the added IEEE 802.11ax support, you can:

• Generate HE-format WLAN MAC frames compliant with IEEE 802.11ax Draft 3.1 using the
wlanMACFrame function.
• Simulate an HE-MU packet with more than 16 HE-SIG-B symbols.
• Generate HE packets containing a PSDU of up to 6,500,631 bytes.

System-Level Simulation Examples: Simulate a WLAN network

These examples show you how to simulate 802.11 networks by simulating individual links between
different nodes:

3-2
• 802.11ax PHY-Focused System-Level Simulation
• Multi-Node 802.11a Network Modeling with PHY and MAC

3-3
 4

R2018b

Version: 2.0

New Features

Bug Fixes
R2018b

IEEE 802.11ax Support: Generate IEEE 802.11ax (Draft 2.0) high-

efficiency (HE) waveforms and simulate end-to-end links
WLAN Toolbox now supports 802.11ax Draft 2.0 waveform generation and link-level simulation of
single user (HE-SU, HE-EXT-SU) and multi-user (HE-MU) formats.

The 802.11ax Packet Error Rate Simulation for Uplink Trigger-Based Format example shows how to
measure the packet error rate of an uplink trigger-based (HE-TB) format link.

Wireless Waveform Generator App: Create, impair, visualize, and

export modulated waveforms
Using the Wireless Waveform Generator app you can:

• Create OFDM, QAM, or PSK modulated waveforms or a sine wave test waveform.
• Create WLAN waveforms that are compliant with various 802.11 modulation schemes
(a/b/g/j/p/n/ac/ad/ah).
• Add RF impairments to your waveforms.
• Plot waveforms in constellation diagram, spectrum analyzer, and time scopes.
• Export waveforms from the app to your MATLAB workspace or a file.

MAC Frame Support: Generate data, management, and control frames

This release adds support for inbuilt MAC Frame generation. This feature includes the following
functions:

• wlanMACFrame: WLAN MAC frame generation (MPDU or A-MPDU)

• wlanMSDULengths: Returns a vector of MSDU lengths required to generate a MAC frame of
given length, MAC configuration, and PHY configuration.
• wlanMACFrameConfig: MAC frame configuration object with properties relevant to the IEEE
802.11 MAC frame.
• wlanMACManagementConfig: MAC management configuration object with properties relevant to
the IEEE 802.11 MAC management frame body.

IEEE TGay Channel Model Example: Simulate an end-to-end, DMG

format WLAN link over a TGay millimeter wave channel
The 802.11ad Packet Error Rate Single Carrier PHY Simulation with TGay Channel example shows
how to determine the packet error rate for an 802.11ad™ SC link with a TGay fading channel at a
selection of SNR points.

IEEE 802.11ad RF Beamforming Example: Simulate an end-to-end,

DMG format WLAN link with RF beamforming
The 802.11ad Single Carrier Link with RF Beamforming in Simulink example shows how to model an
IEEE 802.11ad single carrier link with RF beamforming. This example also displays the packet error
rate after processing each packet, the equalized symbol constellation, and EVM measurements.

4-2
IEEE 802.11p V2V Link Example: Simulate an end-to-end link over a
vehicular channel model
The 802.11p Packet Error Rate Simulation for a Vehicular Channel example shows how to measure
the packet error rate of an IEEE 802.11p™ link with a V2V fading channel and additive white
Gaussian noise.

Functionality Being Removed or Changed

The wlanGeneratorConfig object has been removed. Use Name, Value pair syntax of
wlanWaveformGenerator for parameterizing the wlanWaveformGenerator function. See
wlanWaveformGenerator for the recommended parameter Name,Value pair syntax.

4-3
 5

R2018a

Version: 1.5

New Features
R2018a

IEEE 802.11ax Examples: Generate IEEE 802.11ax high efficiency (HE)

waveforms and simulate downlink end-to-end links
This release adds three examples which show how WLAN System Toolbox functions can be used to
simulate IEEE 802.11ax Draft 1.1:

• 802.11ax Parameterization for Waveform Generation and Simulation shows how to parameterize
and generate different types of IEEE 802.11ax high efficiency (HE) formats.
• 802.11ax Packet Error Rate Simulation for Single User Format shows how to measure the packet
error rate of an IEEE 802.11ax high efficiency (HE) single user format link.
• 802.11ax OFDMA and Multi-User MIMO Throughput Simulation shows the transmit and receive
processing for an IEEE 802.11ax multi-user downlink transmission over a TGax indoor fading
channel. Three transmission modes are simulated: OFDMA, MU-MIMO, and a combination of
OFDMA and MU-MIMO.

IEEE TGax Indoor Channel Model: Simulate indoor 802.11ax

propagation conditions for both single and multiuser scenario
In this release, WLAN System Toolbox™ provides the channel model described by the TGax task
group. Use the wlanTGaxChannel System object to model 802.11ax indoor propagation conditions.
For more information, see WLAN Channel Models and Propagation Channel.

IEEE 802.11ad Single Carrier PHY Example: Simulate an end-to-end,

DMG format WLAN link over an AWGN with synchronization and
equalization
This example enables you to study synchronization and equalization techniques in an end-to-end IEEE
802.11ad Single Carrier PHY link.

IEEE 802.11ad Extended MCS Support: Generate IEEE 802.11ad

waveforms with the extended modulation and coding schemes (MCS)
for the single carrier PHY
The toolbox now supports the extended modulation and coding schemes (MCS) for the IEEE 802.11ad
single carrier PHY as specified in IEEE 802.11-2016.

5-2
 6

R2017b

Version: 1.4

New Features
R2017b

IEEE 802.11ad Receiver: Demodulate and decode directional multi-

gigabit waveforms
This release adds support for IEEE 802.11ad demodulation and decoding steps. The 802.11ad
specification defines the WLAN directional multi-gigabit (DMG) format.

This feature is contained in these functions:

• wlanDMGDataBitRecover: Recovers data bits from DMG Data field.

• wlanDMGHeaderBitRecover: Recovers header bits from DMG Header field.

Three new IEEE 802.11ad examples explain how to perform an end-to-end simulation in the different
PHY types.

IEEE 802.11ah Example: Simulate an end-to-end sub 1 GHz link with

the TGah channel model
802.11ah Packet Error Rate Simulation for 2x2 TGah Channel shows how to measure the packet error
rate of an IEEE 802.11ah™ S1G short preamble link with a fading TGah indoor channel model and
additive white Gaussian noise.

Simulink Example: Model a WLAN link in Simulink

WLAN Link Modeling in Simulink: Use the end-to-end 802.11n™ HT link example to explore the
capabilities of WLAN System Toolbox in Simulink®.

Bit-Level Processing Functions: Explore standard-compliant bit-level

algorithms
WLAN Toolbox includes standard compliant bit-level functions:

• wlanScramble: Scramble and descramble binary input.

• wlanBCCInterleave and wlanBCCDeinterleave: Interleave and deinterleave binary
convolutionally encoded input.
• wlanBCCEncode and wlanBCCDecode: Convolutionally encode and decode input.
• wlanStreamParse and wlanStreamDeparse: Stream-parse and deparse binary input.
• wlanSegmentParseBits and wlanSegmentDeparseBits: Segment-parse and deparse binary
input.
• wlanSegmentParseSymbols and wlanSegmentDeparseSymbols: Segment-parse and deparse
symbols.
• wlanConstellationMap and wlanConstellationDemap: Modulate and demodulate input.

You can explore these functions and customize their algorithms and functionality.

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R2017a

Version: 1.3

New Features

Bug Fixes

Compatibility Considerations
R2017a

IEEE 802.11ad Support: Generate IEEE 802.11ad compliant waveforms

This release adds support for IEEE 802.11ad waveform generation. The 802.11ad specification
defines the WLAN directional multi-gigabit (DMG) format. For details, see wlanDMGConfig.

IEEE TGah Indoor Channel Model: Simulate 802.11ah propagation

conditions
In this release, WLAN System Toolbox provides the channel model described by the TGah task group.
Use the wlanTGahChannel System object to model 802.11ah propagation conditions. For more
information, see WLAN Channel Models and Propagation Channel.

OFDM Timing Synchronization: Detect and estimate symbol timing

offsets in a received OFDM signal
A WLAN OFDM timing synchronization function,wlanSymbolTimingEstimate, returns the symbol
timing estimate of a received OFDM waveform.

MATLAB Compiler Support: Compile WLAN models into standalone

applications
WLAN System Toolbox now supports MATLAB Compiler™ enabling you to produce standalone
executables. For details, see Code Generation and Deployment.

Scrambler Bit Mapping Change: Mapping of scrambler initialization

seed is swapped
The scrambling operation now swaps the MSB-to-LSB mapping for the initialization seed for all
supported WLAN packet formats. This change aligns the scrambler operation with the mapping
indicated for 802.11ad. These functions perform the scrambling operation
wlanWaveformGenerator, wlanNonHTData, wlanHTData, and wlanVHTData.

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 8

R2016b

Version: 1.2

New Features
R2016b

IEEE 802.11ah Support: Generate IEEE 802.11ah compliant waveforms

This release adds support for IEEE 802.11ah waveform generation. For details, see wlanS1GConfig
and 802.11ah Waveform Generation.

Multiuser-MIMO Receiver: Decode and analyze 802.11ac multiuser

waveforms
This release adds support for IEEE 802.11ac™ MU-MIMO receiver. For details, see 802.11ac Multi-
User MIMO Precoding.

LDPC Channel Coding: Analyze the performance of 802.11ac/n links

using low-density parity-check (LDPC) channel coding techniques
This release adds LDPC support for IEEE 802.11ac and 802.11n. For details, see 802.11n Packet
Error Rate Simulation for 2x2 TGn Channel.

Beacon Frame Generation Example: Create Beacon frames for receiver

testing and over-the-air transmission
This release adds an example that creates and transmits a WLAN OFDM Beacon. You can transmit
Beacon frames using an SDR platform, and then receive and view the Beacon using a standard Wi-Fi®
device. For details, see 802.11 OFDM Beacon Receiver with USRP Hardware.

Productize functions
WLAN packet detection and format detection functions are productized in this release.

• Packet detection — Use the function wlanPacketDetect to return the offset from the start of the
input waveform to the start of the detected preamble.
• Format detection — Use the function wlanFormatDetect to detect and return the packet format
for the specified received signal.

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 9

R2016a

Version: 1.1

New Features

Bug Fixes
R2016a

Support for 802.11p Standard: Simulate 802.11p systems to analyze

Intelligent Transportation Systems (ITS) applications
The toolbox now supports IEEE 802.11p communications systems. Transmit and receive OFDM
functions now include options for 10 MHz or 5 MHz channel bandwidth. For examples on how to use
the 802.11p standard, see:

• 802.11p and 802.11a Packet Error Rate Simulations — Measures packet error rates in 802.11p
and 802.11a links using an end-to-end simulation with a fading channel and AWGN.
• 802.11p Spectral Emission Mask Testing — Performs spectrum emission mask tests for an 802.11p
transmitted waveform.

Support for 802.11j Standard: Simulate 802.11j systems to analyze

Japanese WiFi market applications
Support is enabled for IEEE 802.11j™ communications systems. Transmit and receive OFDM
functions now provide option for 10 MHz channel bandwidth.

Functionality Being Removed or Changed

Use of the wlanGeneratorConfig object is discouraged for parameterizing the
wlanWaveformGenerator function. See wlanWaveformGenerator for the recommended
parameter Name,Value pair syntax.

Functionality Result Use Instead Compatibility

Considerations
wlanWaveformGenerato Still runs wlanWaveformGenerato Replace all instances of
r(bits,cfgFormat,cfg r(bits,cfgFormat,Nam old function syntax with
WaveGen)where e,Value,...,NameN,Va new function syntax.
cfgWaveGen is a lueN)
wlanGeneratorConfig
object.

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 10

R2015b+

Version: 1.0

New Features
R2015b+

IEEE 802.11ac and 802.11b/a/g/n standard-compliant physical layer

models
WLAN System Toolbox provides standard-compliant functions for the design, simulation, and
verification of IEEE 802.11 b/a/g/n/ac communications systems.

Very high throughput (VHT), high throughput (HT-mixed), and legacy

(non-HT) waveform generation
WLAN System Toolbox provides 802.11 standard-compliant waveform generation for VHT, HT, and
non-HT formats.

For more information, see Waveform Generation and Signal Transmission.

Channel coding, modulation (OFDM, DSSS, CCK), spatial stream

mapping, and MIMO receivers
WLAN System Toolbox provides 802.11 standard-compliant functions for individual preamble field
creation and decoding, OFDM demodulation and channel estimation, carrier frequency offset
estimation, and data recovery. Single input single output (SISO) and multiple input multiple output
(MIMO) antenna configurations are supported.

For more information, see Packet Recovery and Signal Reception.

Channel models, including TGac and TGn

WLAN System Toolbox provides channel models described by the TGac and TGn task groups. For
more information, see WLAN Channel Models and Propagation Channel.

Measurements including channel power, spectrum mask, EVM, PER,

and occupied bandwidth
WLAN System Toolbox examples show how to measure signal characteristics and system
performance.

Waveform transmission and reception with radio devices and

instruments
When coupled with a radio hardware support package, WLAN System Toolbox functions enable
transmission and reception of packet contents with radio devices and instruments.

C code generation support

All WLAN System Toolbox functions support C code generation. Also, you can access the underlying
code to customize the algorithms and functions.

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