802.11n/ac (Wi-Fi 4 and Wi-Fi 5)
Model HT- and VHT-related signal reception functionality.
Functions
Waveform Detection and Synchronization
wlanPacketDetect | Estimate timing offset of OFDM packet using L-STF |
wlanFormatDetect | Detect packet format |
wlanSymbolTimingEstimate | Fine symbol timing estimate using L-LTF |
wlanCoarseCFOEstimate | Perform coarse CFO estimation |
wlanFineCFOEstimate | Perform fine CFO estimation |
wlanSampleRate | Nominal sample rate |
Channel and Noise Estimation
wlanLLTFChannelEstimate | Channel estimation using L-LTF |
wlanLLTFNoiseEstimate | Noise estimation using L-LTF or S1G-LTF1 (Since R2023a) |
wlanVHTLTFChannelEstimate | Channel estimation using VHT-LTF |
wlanHTLTFChannelEstimate | Channel estimation using HT-LTF |
OFDM Demodulation
wlanLLTFDemodulate | Demodulate L-LTF waveform |
wlanVHTLTFDemodulate | Demodulate VHT-LTF waveform |
wlanHTLTFDemodulate | Demodulate HT-LTF waveform |
wlanVHTOFDMInfo | OFDM information for VHT transmission |
wlanHTOFDMInfo | OFDM information for HT transmission |
Signal Recovery
wlanFieldIndices | PPDU field indices |
wlanLSIGBitRecover | Recover information bits in L-SIG field |
wlanLSIGRecover | Recover L-SIG information bits |
wlanInterpretScramblerState | Recover bandwidth signaling from initial scrambler state (Since R2020b) |
wlanVHTSIGARecover | Recover bits from VHT-SIG-A field |
wlanVHTSIGBRecover | Recover VHT-SIG-B information bits |
wlanHTSIGRecover | Recover HT-SIG information bits |
wlanHTDataRecover | Recover bits from HT-Data field |
wlanVHTDataRecover | Recover bits from VHT-Data field |
Bit-Level Processing
wlanScramble | Scramble and descramble binary input sequence |
wlanConstellationDemap | Constellation demapping |
wlanStreamDeparse | Stream-deparse spatial streams |
wlanBCCDecode | BCC-decode input data |
wlanBCCDeinterleave | Deinterleave BCC-interleaved input |
wlanSegmentDeparseBits | Segment-deparse data bits |
wlanSegmentParseSymbols | Segment-parse data subcarriers |
MAC Frame Parsing
wlanAMPDUDeaggregate | Deaggregate A-MPDU and extract MPDUs |
wlanMPDUDecode | Decode MPDU |
displayIEs | Display list of IEs in MAC management frame |
Topics
- Basic VHT Data Recovery
Perform basic VHT data recovery.
- End-to-End VHT Simulation with Frequency Correction
Generate, transmit, recover, and view a VHT MIMO waveform.
- Transmit and Recover L-SIG, VHT-SIG-A, and VHT-SIG-B in Fading Channel
Transmit a VHT waveform through a noisy MIMO channel.
Featured Examples
802.11ac Multi-User MIMO Precoding
Perform transmit and receive processing for an IEEE® 802.11ac™ multi-user downlink transmission over a fading channel.
Recovery Procedure for an 802.11ac Packet
Detect a packet and decode payload bits in an IEEE 802.11ac waveform.
Joint Sampling Clock and Carrier Frequency Offset Tracking
Measure and correct offset of sampling rate and carrier frequency in a WLAN receiver.
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