Very low-complexity filter lookup-table design with non-uniform spacing for SOA linearisation
Non-linearities introduced by power amplifiers in communication systems have been a subject of interest for industry and academia for a long time. On one hand, the search for increased range intrinsically incites operators to boost input power. On the other hand, this leads to stronger non-linear ph...
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| Published in | IET optoelectronics Vol. 14; no. 5; pp. 306 - 311 |
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| Main Authors | , , , , |
| Format | Journal Article |
| Language | English |
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The Institution of Engineering and Technology
01.10.2020
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| Abstract | Non-linearities introduced by power amplifiers in communication systems have been a subject of interest for industry and academia for a long time. On one hand, the search for increased range intrinsically incites operators to boost input power. On the other hand, this leads to stronger non-linear phenomena in amplifiers, which in turn increase the bit error rate. The situation led to the emergence of digital predistortion algorithms that compensate for the power amplifier's non-linearities and improve the overall performance of the link. A rich corpus of literature exists on this topic but it mainly addresses wireless microwave networks. The case of digital predistortion specifically tailored for optical communications is much less explored. This study focuses on predistortion via filter-lookup-tables and tackles the issue of non-uniform spacing. The work is mainly aimed at coherent optical-orthogonal frequency-division multiplexing systems including low-cost semiconductor optical amplifiers. |
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| AbstractList | Nonlinearities introduced by power amplifiers in communication systems have been a subject of interest for industry and academia for a long time. On one hand the search for increased range intrinsically incites operators to boost input power. On the other hand this leads to stronger nonlinear phenomena in amplifiers which in turn increase the bit error rate. The situation led to the emergence of digital predistortion algorithms that compensate the power-amplifier's nonlinearities and improve the overall performance of the link. A rich corpus of literature exists on this topic but it mainly addresses wireless microwave networks. The case of digital predistortion specifically tailored for optical communications is much less explored. This paper focuses on predistortion via filter-lookup-tables and tackles the issue of non-uniform spacing. The work is mainly aimed at CO-OFDM systems including low-cost semiconductor optical amplifiers. Non‐linearities introduced by power amplifiers in communication systems have been a subject of interest for industry and academia for a long time. On one hand, the search for increased range intrinsically incites operators to boost input power. On the other hand, this leads to stronger non‐linear phenomena in amplifiers, which in turn increase the bit error rate. The situation led to the emergence of digital predistortion algorithms that compensate for the power amplifier's non‐linearities and improve the overall performance of the link. A rich corpus of literature exists on this topic but it mainly addresses wireless microwave networks. The case of digital predistortion specifically tailored for optical communications is much less explored. This study focuses on predistortion via filter‐lookup‐tables and tackles the issue of non‐uniform spacing. The work is mainly aimed at coherent optical‐orthogonal frequency‐division multiplexing systems including low‐cost semiconductor optical amplifiers. |
| Author | Telescu, Mihai Azou, Stéphane Tanguy, Noël Morel, Pascal Younes, Mohamad |
| Author_xml | – sequence: 1 givenname: Mohamad surname: Younes fullname: Younes, Mohamad organization: 1Univ Brest, Lab-STICC, CNRS, UMR 6285, F-29200 Brest, France – sequence: 2 givenname: Mihai surname: Telescu fullname: Telescu, Mihai organization: 1Univ Brest, Lab-STICC, CNRS, UMR 6285, F-29200 Brest, France – sequence: 3 givenname: Stéphane orcidid: 0000-0001-8185-7134 surname: Azou fullname: Azou, Stéphane email: azou@enib.fr organization: 2ENIB, Lab-STICC, CNRS, UMR 6285, Brest, France – sequence: 4 givenname: Pascal surname: Morel fullname: Morel, Pascal organization: 2ENIB, Lab-STICC, CNRS, UMR 6285, Brest, France – sequence: 5 givenname: Noël surname: Tanguy fullname: Tanguy, Noël organization: 1Univ Brest, Lab-STICC, CNRS, UMR 6285, F-29200 Brest, France |
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| Cites_doi | 10.1364/OE.22.000737 10.1109/TCSII.2013.2296194 10.1109/TVT.2009.2034749 10.1109/JLT.2008.2010002 10.1109/LPT.2011.2172405 10.1109/25.61359 10.1364/OE.21.007354 10.1109/TCSII.2006.877278 10.1109/TMTT.2004.837313 10.1109/MICC.2015.7725457 10.1049/el.2013.2458 10.1109/TVT.2007.895566 10.1109/TCS.1978.1084497 10.1109/LPT.2015.2455674 10.1109/25.543741 10.1109/25.293651 10.1109/JLT.2012.2226702 10.1364/OE.22.017854 10.1002/9781119004424 10.1109/ISCAS.2001.921786 |
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| Keywords | filter-lookup-tables power amplifier optical-orthogonal frequency-division multiplexing systems optical communication systems digital predistortion algorithms bit error rate table lookup very low-complexity filter lookup-table design wireless microwave networks semiconductor optical amplifiers OFDM modulation power amplifiers error statistics nonuniform spacing SOA linearisation nonlinear phenomena |
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Express – year: 2015 – ident: e_1_2_6_2_1 doi: 10.1364/OE.22.000737 – ident: e_1_2_6_11_1 doi: 10.1109/TCSII.2013.2296194 – ident: e_1_2_6_16_1 doi: 10.1109/TVT.2009.2034749 – ident: e_1_2_6_7_1 doi: 10.1109/JLT.2008.2010002 – ident: e_1_2_6_24_1 doi: 10.1109/LPT.2011.2172405 – ident: e_1_2_6_12_1 doi: 10.1109/25.61359 – ident: e_1_2_6_8_1 doi: 10.1364/OE.21.007354 – ident: e_1_2_6_10_1 doi: 10.1109/TCSII.2006.877278 – ident: e_1_2_6_15_1 doi: 10.1109/TMTT.2004.837313 – volume-title: ‘High linearity RF amplifliers design' year: 2000 ident: e_1_2_6_5_1 – ident: e_1_2_6_18_1 doi: 10.1109/MICC.2015.7725457 – ident: e_1_2_6_19_1 doi: 10.1049/el.2013.2458 – ident: e_1_2_6_20_1 doi: 10.1109/TVT.2007.895566 – ident: e_1_2_6_13_1 doi: 10.1109/TCS.1978.1084497 – ident: e_1_2_6_21_1 doi: 10.1109/LPT.2015.2455674 – ident: e_1_2_6_22_1 doi: 10.1109/25.543741 – ident: e_1_2_6_9_1 doi: 10.1109/25.293651 – start-page: 1 volume-title: 13th European Signal Processing Conf. year: 2005 ident: e_1_2_6_17_1 – ident: e_1_2_6_23_1 doi: 10.1109/JLT.2012.2226702 – ident: e_1_2_6_3_1 doi: 10.1364/OE.22.017854 – ident: e_1_2_6_6_1 doi: 10.1002/9781119004424 – volume-title: ‘Semiconductor optical amplifiers' year: 2002 ident: e_1_2_6_4_1 – ident: e_1_2_6_14_1 doi: 10.1109/ISCAS.2001.921786 |
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| Snippet | Non-linearities introduced by power amplifiers in communication systems have been a subject of interest for industry and academia for a long time. On one hand,... Non‐linearities introduced by power amplifiers in communication systems have been a subject of interest for industry and academia for a long time. On one hand,... Nonlinearities introduced by power amplifiers in communication systems have been a subject of interest for industry and academia for a long time. On one hand... |
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| SubjectTerms | bit error rate digital predistortion algorithms Engineering Sciences error statistics filter‐lookup‐tables nonlinear phenomena nonuniform spacing OFDM modulation optical communication systems optical‐orthogonal frequency‐division multiplexing systems power amplifier power amplifiers Research Article semiconductor optical amplifiers Signal and Image processing SOA linearisation table lookup very low‐complexity filter lookup‐table design wireless microwave networks |
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| Title | Very low-complexity filter lookup-table design with non-uniform spacing for SOA linearisation |
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