Partial enumerative sphere shaping

Yunus Gultekin; Wim van Houtum; Arie G.C. Koppelaar; Frans Willems

doi:10.1109/VTCFall.2019.8891195

Partial enumerative sphere shaping

Yunus Gultekin, Wim van Houtum, Arie G.C. Koppelaar, Frans Willems

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review

1 Citation (Scopus)

1 Downloads (Pure)

Abstract

The dependency between the Gaussianity of the input distribution for the additive white Gaussian noise (AWGN) channel and the gap-to-capacity is discussed. We show that a set of particular approximations to the Maxwell- Boltzmann (MB) distribution virtually closes most of the shaping gap. We relate these symbol-level distributions to bit-level distributions, and demonstrate that they correspond to keeping some of the amplitude bit-levels uniform and independent of the others. Then we propose partial enumerative sphere shaping (P-ESS) to realize such distributions in the probabilistic amplitude shaping (PAS) framework. Simulations over the AWGN channel exhibit that shaping 2 amplitude bits of 16-ASK have almost the same performance as shaping 3 bits, which is 1.3 dB more power- efficient than uniform signaling at a rate of 3 bit/symbol. In this way, required storage and computational complexity of shaping are reduced by factors of 6 and 3, respectively.

Original language	English
Title of host publication	2019 IEEE 90th Vehicular Technology Conference, VTC 2019 Fall - Proceedings
Place of Publication	Piscataway
Publisher	Institute of Electrical and Electronics Engineers
Number of pages	6
ISBN (Electronic)	978-1-7281-1220-6
DOIs	https://doi.org/10.1109/VTCFall.2019.8891195
Publication status	Published - Sep 2019
Event	2019 IEEE 90th Vehicular Technology Conference (VTC2019-Fall) - Honolulu, United States Duration: 22 Sep 2019 → 25 Sep 2019

Conference

Conference	2019 IEEE 90th Vehicular Technology Conference (VTC2019-Fall)
Abbreviated title	VTC2019-Fall
Country	United States
City	Honolulu
Period	22/09/19 → 25/09/19

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10.1109/VTCFall.2019.8891195

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title = "Partial enumerative sphere shaping",

abstract = "The dependency between the Gaussianity of the input distribution for the additive white Gaussian noise (AWGN) channel and the gap-to-capacity is discussed. We show that a set of particular approximations to the Maxwell- Boltzmann (MB) distribution virtually closes most of the shaping gap. We relate these symbol-level distributions to bit-level distributions, and demonstrate that they correspond to keeping some of the amplitude bit-levels uniform and independent of the others. Then we propose partial enumerative sphere shaping (P-ESS) to realize such distributions in the probabilistic amplitude shaping (PAS) framework. Simulations over the AWGN channel exhibit that shaping 2 amplitude bits of 16-ASK have almost the same performance as shaping 3 bits, which is 1.3 dB more power- efficient than uniform signaling at a rate of 3 bit/symbol. In this way, required storage and computational complexity of shaping are reduced by factors of 6 and 3, respectively.",

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Gultekin, Y , van Houtum, W, Koppelaar, AGC & Willems, F 2019, Partial enumerative sphere shaping. in 2019 IEEE 90th Vehicular Technology Conference, VTC 2019 Fall - Proceedings., 8891195, Institute of Electrical and Electronics Engineers, Piscataway, 2019 IEEE 90th Vehicular Technology Conference (VTC2019-Fall), Honolulu, United States, 22/09/19. https://doi.org/10.1109/VTCFall.2019.8891195

Partial enumerative sphere shaping. / Gultekin, Yunus ; van Houtum, Wim; Koppelaar, Arie G.C.; Willems, Frans.

2019 IEEE 90th Vehicular Technology Conference, VTC 2019 Fall - Proceedings. Piscataway : Institute of Electrical and Electronics Engineers, 2019. 8891195.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review

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