Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Enhanced Inter-cell Interference Coordination for Heterogeneous Networks
  in LTE-Advanced: A Survey   Heterogeneous networks (het-nets) - comprising of conventional macrocell base
stations overlaid with femtocells, picocells and wireless relays - offer
cellular operators burgeoning traffic demands through cell-splitting gains
obtained by bringing users closer to their access points. However, the often
random and unplanned location of these access points can cause severe near-far
problems, typically solved by coordinating base-station transmissions to
minimize interference. Towards this direction, the 3rd generation partnership
project Long Term Evolution-Advanced (3GPP-LTE or Rel-10) standard introduces
time-domain inter-cell interference coordination (ICIC) for facilitating a
seamless deployment of a het-net overlay. This article surveys the key features
encompassing the physical layer, network layer and back-hauling aspects of
time-domain ICIC in Rel-10.

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The categories of this paper are: alg-geom
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The categories of this paper are: eess
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The categories of this paper are: dg-ga
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The categories of this paper are: nucl-th
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The categories of this paper are: hep-ex
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The categories of this paper are: chao-dyn
13
The categories of this paper are: quant-ph
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The categories of this paper are: bayes-an
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The categories of this paper are: chem-ph
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The categories of this paper are: math-ph
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The categories of this paper are: acc-phys
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The categories of this paper are: nlin
10
The categories of this paper are: q-bio
5
The categories of this paper are: gr-qc
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The categories of this paper are: atom-ph
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The categories of this paper are: cmp-lg