Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Linear Degrees of Freedom of MIMO Broadcast Channels with Reconfigurable
  Antennas in the Absence of CSIT   The K-user multiple-input and multiple-output (MIMO) broadcast channel (BC)
with no channel state information at the transmitter (CSIT) is considered,
where each receiver is assumed to be equipped with reconfigurable antennas
capable of choosing a subset of receiving modes from several preset modes.
Under general antenna configurations, the sum linear degrees of freedom (LDoF)
of the K-user MIMO BC with reconfigurable antennas is completely characterized,
which corresponds to the maximum sum DoF achievable by linear coding
strategies. The LDoF region is further characterized for a class of antenna
configurations. Similar analysis is extended to the K-user MIMO interference
channels with reconfigurable antennas and the sum LDoF is characterized for a
class of antenna configurations.

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The categories of this paper are: cond-mat
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The categories of this paper are: funct-an
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The categories of this paper are: plasm-ph
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The categories of this paper are: q-alg
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The categories of this paper are: cmp-lg
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The categories of this paper are: math-ph
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The categories of this paper are: q-bio
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The categories of this paper are: hep-lat
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The categories of this paper are: stat
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The categories of this paper are: dg-ga
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The categories of this paper are: bayes-an
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The categories of this paper are: mtrl-th
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The categories of this paper are: quant-ph
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The categories of this paper are: patt-sol
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The categories of this paper are: hep-th
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The categories of this paper are: chao-dyn