On the capacity of free-space optical intensity channels

By Amos Lapidoth, Stefan M. Moser, Michèle A. Wigger. 2008 IEEE International Symposium on Information Theory, 2008

546 citations recorded by the source corpus.

New upper and lower bounds are presented on the capacity of the free-space optical intensity channel. This channel is characterized by inputs that are nonnegative (representing the transmitted optical intensity) and by outputs that are corrupted by additive white Gaussian noise (because in free space the disturbances arise from many independent sources). Due to battery and safety reasons the inputs are simultaneously constrained in both their average and peak power. For a fixed ratio of the average power to the peak power the difference between the upper and the lower bounds tends to zero as the average power tends to infinity, and the ratio of the upper and lower bounds tends to one as the average power tends to zero. The case where only an average-power constraint is imposed on the input is treated separately. In this case, the difference of the upper and lower bound tends to 0 as the average power tends to infinity, and their ratio tends to a constant as the power tends to zero.

Subfields: Artificial Intelligence, Biomedical Engineering, Electrical and Electronic Engineering

View Paper: https://www.semanticscholar.org/paper/0d9e0112e583e7a9252924fe20803411f1ea6e7d

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Citations in the corpus

LED Based Wavelength Division Multiplexed 10 Gb/s Visible Light Communications (2016, background): “channel, such as described in [15] and [16].”
Wireless Information and Power Transfer: Architecture Design and Rate-Energy Tradeoff (2012, background): “The details of choice for β and δ are provided in [18], and thus are omitted in this paper for brevity.”
A Survey of Rate-Optimal Power Domain NOMA With Enabling Technologies of Future Wireless Networks (2019, background): “It should be highlighted here that unlike RF systems, where the input is typically assumed to be scalar or vector with Gaussian distribution, the capacity-achieving inputs for amplitudeconstrained multi-user multiple-access and broadcast VLC and optical channels are still, in general, open problems ”