Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The Weighted Sum Rate Maximization in MIMO Interference Networks: The
  Minimax Lagrangian Duality and Algorithm   We take a new perspective on the weighted sum-rate maximization in
multiple-input multiple-output (MIMO) interference networks, by formulating an
equivalent max-min problem. This seemingly trivial reformulation has
significant implications: the Lagrangian duality of the equivalent max-min
problem provides an elegant way to establish the sum-rate duality between an
interference network and its reciprocal when such a duality exists, and more
importantly, suggests a novel iterative minimax algorithm for the weighted
sum-rate maximization. Moreover, the design and convergence proof of the
algorithm use only general convex analysis. They apply and extend to any
max-min problems with similar structure, and thus provide a general class of
algorithms for such optimization problems. This paper presents a promising step
and lends hope for establishing a general framework based on the minimax
Lagrangian duality for characterizing the weighted sum-rate and developing
efficient algorithms for general MIMO interference networks.

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The categories of this paper are: dg-ga
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The categories of this paper are: adap-org
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The categories of this paper are: bayes-an
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The categories of this paper are: eess
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The categories of this paper are: comp-gas
12
The categories of this paper are: nucl-th
37
The categories of this paper are: supr-con
35
The categories of this paper are: mtrl-th
33
The categories of this paper are: plasm-ph
0
The categories of this paper are: hep-ph
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The categories of this paper are: chao-dyn
20
The categories of this paper are: acc-phys
9
The categories of this paper are: nlin
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The categories of this paper are: q-fin
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The categories of this paper are: funct-an
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The categories of this paper are: q-alg