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Fixed-Data-Rate Power Minimization Algorithm for OFDM-Based Power-Line Communication Networks.

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Název: Fixed-Data-Rate Power Minimization Algorithm for OFDM-Based Power-Line Communication Networks.
Autoři: Marijić, Zdravko, Ilić, Zeljko, Bažant, Alen
Zdroj: IEEE Transactions on Power Delivery; Jan2010, Vol. 25 Issue 1, p141-149, 10p, 2 Diagrams, 2 Charts, 5 Graphs
Témata: ELECTRIC lines, ALGORITHMS, ORTHOGONAL frequency division multiplexing, POWER transmission, ELECTRONIC data processing, COMPUTATIONAL complexity
Abstrakt: In this paper, we present a suboptimal integer bit allocation algorithm that minimizes power output for given user demands in multiuser orthogonal frequency-division multiplexing (OFDM) systems implemented in downlink transmission of power-line communication (PLC) networks. Assuming complete knowledge of a channel and the predetermined data rates for every user, the presented algorithm solves the power minimization problem analytically. The simulation results have shown significant advantages of this approach, especially in comparison with algorithms that deal with the problem of user data rate demands in an iterative manner. Compared to iterative algorithms, the proposed algorithm proves to be a much more effective solution regarding processing time and computational complexity. In addition, the losses in its power allocation efficiency due to its suboptimal approach remain very small in cases where the number of users does not exceed half the number of available subchannels. [ABSTRACT FROM AUTHOR]
Copyright of IEEE Transactions on Power Delivery is the property of IEEE and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Databáze: Complementary Index
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  Data: Fixed-Data-Rate Power Minimization Algorithm for OFDM-Based Power-Line Communication Networks.
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  Data: <searchLink fieldCode="AR" term="%22Marijić%2C+Zdravko%22">Marijić, Zdravko</searchLink><br /><searchLink fieldCode="AR" term="%22Ilić%2C+Zeljko%22">Ilić, Zeljko</searchLink><br /><searchLink fieldCode="AR" term="%22Bažant%2C+Alen%22">Bažant, Alen</searchLink>
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  Data: IEEE Transactions on Power Delivery; Jan2010, Vol. 25 Issue 1, p141-149, 10p, 2 Diagrams, 2 Charts, 5 Graphs
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  Data: <searchLink fieldCode="DE" term="%22ELECTRIC+lines%22">ELECTRIC lines</searchLink><br /><searchLink fieldCode="DE" term="%22ALGORITHMS%22">ALGORITHMS</searchLink><br /><searchLink fieldCode="DE" term="%22ORTHOGONAL+frequency+division+multiplexing%22">ORTHOGONAL frequency division multiplexing</searchLink><br /><searchLink fieldCode="DE" term="%22POWER+transmission%22">POWER transmission</searchLink><br /><searchLink fieldCode="DE" term="%22ELECTRONIC+data+processing%22">ELECTRONIC data processing</searchLink><br /><searchLink fieldCode="DE" term="%22COMPUTATIONAL+complexity%22">COMPUTATIONAL complexity</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: In this paper, we present a suboptimal integer bit allocation algorithm that minimizes power output for given user demands in multiuser orthogonal frequency-division multiplexing (OFDM) systems implemented in downlink transmission of power-line communication (PLC) networks. Assuming complete knowledge of a channel and the predetermined data rates for every user, the presented algorithm solves the power minimization problem analytically. The simulation results have shown significant advantages of this approach, especially in comparison with algorithms that deal with the problem of user data rate demands in an iterative manner. Compared to iterative algorithms, the proposed algorithm proves to be a much more effective solution regarding processing time and computational complexity. In addition, the losses in its power allocation efficiency due to its suboptimal approach remain very small in cases where the number of users does not exceed half the number of available subchannels. [ABSTRACT FROM AUTHOR]
– Name: Abstract
  Label:
  Group: Ab
  Data: <i>Copyright of IEEE Transactions on Power Delivery is the property of IEEE and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1109/TPWRD.2009.2035286
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        Text: English
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      – SubjectFull: ELECTRIC lines
        Type: general
      – SubjectFull: ALGORITHMS
        Type: general
      – SubjectFull: ORTHOGONAL frequency division multiplexing
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      – SubjectFull: POWER transmission
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      – SubjectFull: ELECTRONIC data processing
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      – SubjectFull: COMPUTATIONAL complexity
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      – TitleFull: Fixed-Data-Rate Power Minimization Algorithm for OFDM-Based Power-Line Communication Networks.
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              Text: Jan2010
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              Y: 2010
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