Constellation shaping for IEEE 802.11

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5 Citaten (Scopus)
56 Downloads (Pure)

Samenvatting

A constellation shaping scheme is proposed. The motivation is to decrease the required transmit power for a specified spectral efficiency. Instead of imposing a non-uniform distribution on the constellation or using nonuniformly spaced symbols, a sphere constraint is employed on the n-dimensional signal space. An efficient algorithm called enumerative amplitude shaping is given to find and index all signal points in the sphere. A comparison with a prominent probabilistic shaping algorithm is provided. The enumerative approach achieves the target rate more efficiently for small block lengths. To introduce error correction, the convolutional encoder used in IEEE Std 802.11 is combined with the shaper in a novel way. Instead of utilizing a larger constellation in combination with shaping, a higher code rate is used by puncturing. Gains up to 1.61 dB are observed for the rates 3 to 6 bits/2-D with 64- and 256-QAM schemes in AWGN channels. The contribution of puncturing in these gains is discussed.
Originele taal-2Engels
TitelProceedings of the 28th IEEE International Symposium on Personal, Indoor and Mobile Radio Communications (IEEE PIMRC 2017)
SubtitelEngaged Citizens and their New Smart Worlds, PIMRC 2017 - Conference Proceedings
Plaats van productiePiscataway
UitgeverijInstitute of Electrical and Electronics Engineers
Aantal pagina's7
ISBN van elektronische versie978-1-5386-3531-5
ISBN van geprinte versie978-1-5386-3529-2
DOI's
StatusGepubliceerd - 14 feb 2018
Evenement28th Annual IEEE International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC 2017) - Hotel Bonaventure, Montreal, Canada
Duur: 8 okt 201713 okt 2017
Congresnummer: 28
http://pimrc2017.ieee-pimrc.org/

Congres

Congres28th Annual IEEE International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC 2017)
Verkorte titelPIMRC 2017
LandCanada
StadMontreal
Periode8/10/1713/10/17
Internet adres

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  • Citeer dit

    Gultekin, Y. C., van Houtum, W. J., Serbetli, S., & Willems, F. M. J. (2018). Constellation shaping for IEEE 802.11. In Proceedings of the 28th IEEE International Symposium on Personal, Indoor and Mobile Radio Communications (IEEE PIMRC 2017): Engaged Citizens and their New Smart Worlds, PIMRC 2017 - Conference Proceedings Piscataway: Institute of Electrical and Electronics Engineers. https://doi.org/10.1109/PIMRC.2017.8292338