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Article Dans Une Revue Frontiers in Communications and Networks Année : 2021

Isotropic and Non-Isotropic Signaling in Multivariate α-Stable Noise

Résumé

A wide range of communication systems are corrupted by non-Gaussian noise, ranging from wireless to power line. In some cases, including interference in uncoordinated OFDMbased wireless networks, the noise is both impulsive and multivariate. At present, little is known about the information capacity and corresponding optimal input distributions. In this paper, we derive upper and lower bounds of the information capacity by exploiting non-isotropic inputs. For the special case of sub-Gaussian α-stable noise models, a numerical study reveals that isotropic Gaussian inputs can remain a viable choice, although the performance depends heavily on the dependence structure of the noise.
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Dates et versions

hal-03368384 , version 1 (13-10-2021)

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Citer

Malcolm Egan. Isotropic and Non-Isotropic Signaling in Multivariate α-Stable Noise. Frontiers in Communications and Networks, 2021, pp.1-11. ⟨10.3389/frcmn.2021.718945⟩. ⟨hal-03368384⟩
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