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High-SNR capacity of wireless communication
channels in the noncoherent setting: A primer
Authors
Giuseppe Durisi and Helmut BölcskeiReference
International Journal of Electronics and Communications (AEÜ), Vol. 65, Issue 8, pp. 707-712, Aug. 2011
DOI: 10.1016/j.aeue.2011.02.003
[BibTeX, LaTeX, and HTML Reference] Abstract
This paper, mostly tutorial in nature, deals with the problem of characterizing
the capacity of fading channels in the high signal-to-noise ratio (SNR) regime.
We focus on the practically relevant noncoherent setting, where neither transmitter
nor receiver know the channel realizations, but both are aware of the
channel law. We present, in an intuitive and accessible form, two tools, first
proposed by Lapidoth and Moser (2003), of fundamental importance to
high-SNR capacity analysis: the duality approach and the escape-to-in finity property
of capacity-achieving distributions. Furthermore, we apply these tools to refi ne
some of the results that appeared previously in the literature and to simplify
the corresponding proofs.Keywords
Shannon capacity, high SNR, non coherent communication
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 Copyright Notice: © 2011 G. Durisi and H. Bölcskei.
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