Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A Novel Algorithm for Joint Bit and Power Loading for OFDM Systems with
  Unknown Interference   In this paper, a novel low complexity bit and power loading algorithm is
formulated for orthogonal frequency division multiplexing (OFDM) systems
operating in fading environments and in the presence of unknown interference.
The proposed non-iterative algorithm jointly maximizes the throughput and
minimizes the transmitted power, while guaranteeing a target bit error rate
(BER) per subcarrier. Closed-form expressions are derived for the optimal bit
and power distributions per subcarrier. The performance of the proposed
algorithm is investigated through extensive simulations. A performance
comparison with the algorithm in [1] shows the superiority of the proposed
algorithm with reduced computational effort.

26
The categories of this paper are: bayes-an
16
The categories of this paper are: stat
9
The categories of this paper are: nlin
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The categories of this paper are: comp-gas
35
The categories of this paper are: mtrl-th
14
The categories of this paper are: math-ph
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The categories of this paper are: alg-geom
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The categories of this paper are: atom-ph
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The categories of this paper are: q-fin
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The categories of this paper are: cmp-lg
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The categories of this paper are: acc-phys
6
The categories of this paper are: astro-ph
34
The categories of this paper are: chem-ph
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The categories of this paper are: patt-sol
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The categories of this paper are: chao-dyn
4
The categories of this paper are: cond-mat