Recover bits from VHT-Data field
recovers dataBits
= wlanVHTDataRecover(rxDataSig
,chEst
,noiseVarEst
,cfgVHT
)dataBits
, a column vector of bits, from
rxDataSig
, the received VHT-Data field of a
very-high-throughput (VHT) single-user transmission. The function recovers
dataBits
by using chEst
, a channel
estimate for the occupied subcarriers, noiseVarEst
, an
estimate of noise variance, and cfgVHT
, a configuration
object that contains VHT transmission parameters.
For more information about the VHT-Data field, see VHT-Data Field.
specifies algorithm options by using one or more name-value pair arguments, in
addition to any input argument combination from previous syntaxes. For example,
dataBits
= wlanVHTDataRecover(___,Name,Value
)'LDPCDecodingMethod','layered-bp'
specifies the layered
belief propagation low-density parity-check (LDPC) decoding algorithm.
[1] IEEE STD 802.11ac™-2013 (Amendment to IEEE Std 802.11-2012, as amended by IEEE Std 802.11ae™-2012, IEEE Std 802.11a™-2012, and IEEE Std 802.11ad™-2012). “Part 11: Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) Specifications. Amendment 4: Enhancements for Very High Throughput Operation in Bands below 6 GHz.” IEEE Standard for Information technology — Telecommunications and information exchange between systems. Local and metropolitan area networks — Specific requirements.
[2] Gallager, Robert G. Low-Density Parity-Check Codes. Cambridge, MA: MIT Press, 1963.
[3] Hocevar, D.E. "A Reduced Complexity Decoder Architecture via Layered Decoding of LDPC Codes." In IEEE Workshop on Signal Processing Systems, 2004. SIPS 2004., 107-12. Austin, Texas, USA: IEEE, 2004. https://doi.org/10.1109/SIPS.2004.1363033.
[4] Jinghu Chen, R.M. Tanner, C. Jones, and Yan Li. "Improved Min-Sum Decoding Algorithms for Irregular LDPC Codes." In Proceedings. International Symposium on Information Theory, 2005. ISIT 2005., 449-53, 2005. https://doi.org/10.1109/ISIT.2005.1523374.
wlanVHTConfig
| wlanVHTData
| wlanVHTLTFChannelEstimate
| wlanVHTLTFDemodulate
| wlanVHTSIGARecover
| wlanVHTSIGBRecover