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New Concept of PLC Modems: Multi-Carrier System for Frequency Selective Slow-Fading Channels Based on Layered SCCC Turbocodes.

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Název: New Concept of PLC Modems: Multi-Carrier System for Frequency Selective Slow-Fading Channels Based on Layered SCCC Turbocodes.
Autoři: ZAVRTÁLEK, Jan1 zavrtjan@fel.cvut.cz, KEKRT, Daniel1 kekrtdl@fel.cvut.cz, HRAD, Jaromír1 hrad@fel.cvut.cz
Zdroj: Radioengineering. Sep2015, Vol. 24 Issue 3, p857-872. 16p.
Témata: Modems, Multi-carrier modulation, Carrier transmission on electric lines, Radio transmitter fading, Soft-in soft-out decoding, Turbo codes
Abstrakt: The article introduces a novel concept of a PLC modem as a complement to the existing G3 and PRIME standards for communications using medium- or high-voltage overhead or cable lines. The proposed concept is based on the fact that the levels of impulse noise and frequency selectivity are lower on high-voltage lines than on low-voltage ones. Also, the demands for "cost-effective" circuitry design are not so crucial as in the case of modems for low-voltage level. In contract to these positive conditions, however, there is the need to overcome much longer distances and to take into account low SNR on the receiving side. With respect to the listed reasons, our concept makes use ofMCM, instead of OFDM. The assumption of low SNR is compensated through the use of an efficient channel coding based on a serially concatenated turbo code. In addition, MCM offers lower latency and PAPR compared to OFDM. Therefore, when using MCM, it is possible to excite the line with higher power. The proposed concept has been verified during experimental transmission of testing data over a real, 5 km long, 22 kV overhead line. [ABSTRACT FROM AUTHOR]
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Header DbId: edo
DbLabel: Supplemental Index
An: 109329111
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AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 845.042724609375
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  Label: Title
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  Data: New Concept of PLC Modems: Multi-Carrier System for Frequency Selective Slow-Fading Channels Based on Layered SCCC Turbocodes.
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  Data: <searchLink fieldCode="AR" term="%22ZAVRTÁLEK%2C+Jan%22">ZAVRTÁLEK, Jan</searchLink><relatesTo>1</relatesTo><i> zavrtjan@fel.cvut.cz</i><br /><searchLink fieldCode="AR" term="%22KEKRT%2C+Daniel%22">KEKRT, Daniel</searchLink><relatesTo>1</relatesTo><i> kekrtdl@fel.cvut.cz</i><br /><searchLink fieldCode="AR" term="%22HRAD%2C+Jaromír%22">HRAD, Jaromír</searchLink><relatesTo>1</relatesTo><i> hrad@fel.cvut.cz</i>
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  Data: <searchLink fieldCode="JN" term="%22Radioengineering%22">Radioengineering</searchLink>. Sep2015, Vol. 24 Issue 3, p857-872. 16p.
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  Data: <searchLink fieldCode="DE" term="%22Modems%22">Modems</searchLink><br /><searchLink fieldCode="DE" term="%22Multi-carrier+modulation%22">Multi-carrier modulation</searchLink><br /><searchLink fieldCode="DE" term="%22Carrier+transmission+on+electric+lines%22">Carrier transmission on electric lines</searchLink><br /><searchLink fieldCode="DE" term="%22Radio+transmitter+fading%22">Radio transmitter fading</searchLink><br /><searchLink fieldCode="DE" term="%22Soft-in+soft-out+decoding%22">Soft-in soft-out decoding</searchLink><br /><searchLink fieldCode="DE" term="%22Turbo+codes%22">Turbo codes</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: The article introduces a novel concept of a PLC modem as a complement to the existing G3 and PRIME standards for communications using medium- or high-voltage overhead or cable lines. The proposed concept is based on the fact that the levels of impulse noise and frequency selectivity are lower on high-voltage lines than on low-voltage ones. Also, the demands for "cost-effective" circuitry design are not so crucial as in the case of modems for low-voltage level. In contract to these positive conditions, however, there is the need to overcome much longer distances and to take into account low SNR on the receiving side. With respect to the listed reasons, our concept makes use ofMCM, instead of OFDM. The assumption of low SNR is compensated through the use of an efficient channel coding based on a serially concatenated turbo code. In addition, MCM offers lower latency and PAPR compared to OFDM. Therefore, when using MCM, it is possible to excite the line with higher power. The proposed concept has been verified during experimental transmission of testing data over a real, 5 km long, 22 kV overhead line. [ABSTRACT FROM AUTHOR]
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        Value: 10.13164/re.2015.0857
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      – Code: eng
        Text: English
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        PageCount: 16
        StartPage: 857
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      – SubjectFull: Modems
        Type: general
      – SubjectFull: Multi-carrier modulation
        Type: general
      – SubjectFull: Carrier transmission on electric lines
        Type: general
      – SubjectFull: Radio transmitter fading
        Type: general
      – SubjectFull: Soft-in soft-out decoding
        Type: general
      – SubjectFull: Turbo codes
        Type: general
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      – TitleFull: New Concept of PLC Modems: Multi-Carrier System for Frequency Selective Slow-Fading Channels Based on Layered SCCC Turbocodes.
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            NameFull: ZAVRTÁLEK, Jan
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            NameFull: KEKRT, Daniel
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            – D: 01
              M: 09
              Text: Sep2015
              Type: published
              Y: 2015
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              Value: 24
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