Comparison and Optimization of Enumerative Coding Techniques for Amplitude Shaping

Yunus Can Gultekin (Corresponding author), Wim J. Van Houtum, Arie Koppelaar, Frans M.J. Willems

Onderzoeksoutput: Bijdrage aan tijdschriftTijdschriftartikelAcademicpeer review

Samenvatting

The energy efficiency of enumerative coding algorithms is investigated for amplitude shaping in the context of binary transmission. First, a simple method for the calculation of the amplitude distribution is derived for enumerative sphere shaping (ESS). For ultra-short blocklengths, ESS—which orders sequences lexicographically—is shown to be less energy-efficient than algorithms that use energy-based ordering such as shell mapping. Second, ESS is optimized heuristically such that its energy efficiency is improved. Simulations show that optimized ESS achieves the same error probabilities as energy-based ordering methods for the additive white Gaussian noise (AWGN) channel, even at ultra-short blocklengths.
Originele taal-2Engels
Artikelnummer9293261
Pagina's (van-tot)1231-1235
Aantal pagina's5
TijdschriftIEEE Communications Letters
Volume25
Nummer van het tijdschrift4
Vroegere onlinedatum14 dec 2020
DOI's
StatusGepubliceerd - apr 2021

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