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Wireless Personal Communications
Erschienen in: Wireless Personal Communications 3/2015

01.06.2015

A Modified Low Complexity Based Distributed Iterative Water-Filling (IWF) Spectrum Management Algorithm

verfasst von: Sunil Sharma, O. P. Sahu

Erschienen in: Wireless Personal Communications | Ausgabe 3/2015

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Abstract

In digital subscriber line (DSL) system, crosstalk created by electromagnetic interference among twisted pairs degrades the system performance. Very high bit rate DSL (VDSL), utilizes higher bandwidth of copper cable for data transmission. In upstream data transmission, a ‘Near–Far’ problem occurs in VDSL system. In this problem the far end crosstalk is produced from near end user degrades the data rate achieved at the far end user. Several dynamic spectrum management (DSM) algorithms were proposed in literature to remove this problem. In this paper, a new distributed DSM algorithm is proposed in which power from only those subcarriers of near end user are reduced which create interference to far end user. This power back off strategy takes place with the help of power spectral density masks at those interference creating subcarriers of near end user. The results after simulating the low complex proposed algorithm show an improvement in terms of data rate and approaches near the rate of highly complex optimal spectrum balancing algorithm.
Vorheriger Artikel An Image Sequence Transmission Method in Wireless Video Surveillance Systems
Nächster Artikel Performance Evaluation of Virtual MIMO Multi-User System in a Measured Indoor Environment at 5 GHz

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Metadaten
Titel
A Modified Low Complexity Based Distributed Iterative Water-Filling (IWF) Spectrum Management Algorithm
verfasst von
Sunil Sharma
O. P. Sahu
Publikationsdatum
01.06.2015
Verlag
Springer US
Erschienen in
Wireless Personal Communications / Ausgabe 3/2015
Print ISSN: 0929-6212
Elektronische ISSN: 1572-834X
DOI
https://doi.org/10.1007/s11277-015-2278-5

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