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Nonlinear impairment compensation using expectation maximization for dispersion managed and unmanaged PDM 16-QAM transmission.
| Content Provider | Semantic Scholar |
|---|---|
| Author | Zibar, Darko Winther, Ole Franceschi, Niccolo Borkowski, Robert John Caballero, Antonio Arlunno, Valeria Schmidt, Mikkel N. Gonzales, Neil Guerrero Mao, Bangning Ye, Yabin Larsen, Knud J. Monroy, Idelfonso Tafur |
| Copyright Year | 2012 |
| Abstract | In this paper, we show numerically and experimentally that expectation maximization (EM) algorithm is a powerful tool in combating system impairments such as fibre nonlinearities, inphase and quadrature (I/Q) modulator imperfections and laser linewidth. The EM algorithm is an iterative algorithm that can be used to compensate for the impairments which have an imprint on a signal constellation, i.e. rotation and distortion of the constellation points. The EM is especially effective for combating non-linear phase noise (NLPN). It is because NLPN severely distorts the signal constellation and this can be tracked by the EM. The gain in the nonlinear system tolerance for the system under consideration is shown to be dependent on the transmission scenario. We show experimentally that for a dispersion managed polarization multiplexed 16-QAM system at 14 Gbaud a gain in the nonlinear system tolerance of up to 3 dB can be obtained. For, a dispersion unmanaged system this gain reduces to 0.5 dB. |
| Starting Page | 282 |
| Ending Page | 283 |
| Page Count | 2 |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | http://orbit.dtu.dk/en/publications/nonlinear-impairment-compensation-using-expectation-maximization-for-dispersion-managed-and-unmanaged-pdm-16qam-transmission(6efbe457-8a7f-4d70-ab38-45e4e294b291).pdf?nofollow=true&rendering=author |
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| PubMed reference number | 23262850v1 |
| Alternate Webpage(s) | https://doi.org/10.1364/OE.20.00B181 |
| DOI | 10.1364/oe.20.00b181 |
| Journal | Optics express |
| Volume Number | 20 |
| Issue Number | 26 |
| Language | English |
| Access Restriction | Open |
| Subject Keyword | CNS disorder Heuristics Imprinting (Psychology) Modulator Device Component Numerous OSA protein, Drosophila Revision procedure Scientific Publication Tissue fiber Welander Distal Myopathy algorithm benefit non-T, non-B childhood acute lymphoblastic leukemia |
| Content Type | Text |
| Resource Type | Article |
