Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The Optimal DoF for the Noncoherent MIMO Channel with Generic Block
  Fading   The high-SNR capacity of the noncoherent MIMO channel has been derived for
the case of independent and identically distributed (IID) Rayleigh block fading
by exploiting the Gaussianity of the channel matrix. This implies the optimal
degrees of freedom (DoF), i.e., the capacity pre-log factor. Nevertheless, as
far as the optimal DoF is concerned, IID Rayleigh fading is apparently a
sufficient but not necessary condition. In this paper, we show that the optimal
DoF for the IID Rayleigh block fading channel is also the optimal DoF for a
more general class of generic block fading channels, in which the random
channel matrix has finite power and finite differential entropy. Our main
contribution is a novel converse proof based on the duality approach.

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The categories of this paper are: hep-ph
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The categories of this paper are: econ
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The categories of this paper are: hep-lat
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The categories of this paper are: nucl-ex
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The categories of this paper are: ao-sci
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The categories of this paper are: nlin
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The categories of this paper are: nucl-th
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The categories of this paper are: solv-int
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The categories of this paper are: math-ph
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The categories of this paper are: funct-an
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The categories of this paper are: alg-geom
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The categories of this paper are: q-alg
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The categories of this paper are: adap-org
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The categories of this paper are: plasm-ph
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The categories of this paper are: patt-sol
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The categories of this paper are: supr-con