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Communication Dans Un Congrès Année : 2021

First-and Second-Moment Constrained Gaussian Channels

Résumé

This paper studies the channel capacity of intensitymodulation direct-detection (IM/DD) visible light communication (VLC) systems under both optical and electrical power constraints. Specifically, it derives the asymptotic capacities in the high and low signal-to-noise ratio (SNR) regimes under peak, first-moment, and second-moment constraints. The results show that first-and second-moment constraints are never simultaneously active in the asymptotic low-SNR regime, and only in few cases in the asymptotic high-SNR regime. Moreover, the secondmoment constraint is more stringent in the asymptotic low-SNR regime than in the high-SNR regime.
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Dates et versions

hal-03349796 , version 1 (20-09-2021)

Identifiants

  • HAL Id : hal-03349796 , version 1

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Shuai Ma, Michèle Wigger. First-and Second-Moment Constrained Gaussian Channels. 2021 IEEE International Symposium on Information Theory (ISIT), Jul 2021, Melbourne, Australia. ⟨hal-03349796⟩
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