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Conference papers

First-and Second-Moment Constrained Gaussian Channels

Abstract : 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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Submitted on : Monday, September 20, 2021 - 5:40:24 PM
Last modification on : Wednesday, March 9, 2022 - 9:16:03 AM
Long-term archiving on: : Tuesday, December 21, 2021 - 7:25:04 PM


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  • HAL Id : hal-03349796, version 1


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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