Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Modulation Format Independent Joint Polarization and Phase Tracking for
  Coherent Receivers   The state of polarization and the carrier phase drift dynamically during
transmission in a random fashion in coherent optical fiber communications. The
typical digital signal processing solution to mitigate these impairments
consists of two separate blocks that track each phenomenon independently. Such
algorithms have been developed without taking into account mathematical models
describing the impairments. We study a blind, model-based tracking algorithm to
compensate for these impairments. The algorithm dynamically recovers the
carrier phase and state of polarization jointly for an arbitrary modulation
format. Simulation results show the effectiveness of the proposed algorithm,
having a fast convergence rate and an excellent tolerance to phase noise and
dynamic drift of the polarization. The computational complexity of the
algorithm is lower compared to state-of-the-art algorithms at similar or better
performance, which makes it a strong candidate for future optical systems.

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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: alg-geom
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The categories of this paper are: ao-sci
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The categories of this paper are: cmp-lg
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The categories of this paper are: chem-ph
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The categories of this paper are: hep-lat
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The categories of this paper are: dg-ga
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The categories of this paper are: quant-ph
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The categories of this paper are: hep-ph
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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: eess
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The categories of this paper are: bayes-an
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The categories of this paper are: adap-org
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The categories of this paper are: patt-sol