A dynamic spectrum management algorithm in VDSL systems

Authors

SUNIL SHARMA
OM PARKASH SAHU

DOI

10.3906/elk-1404-441

Abstract

A modified iterative water-filling algorithm is proposed in which power from only those subcarriers of the near end user are reduced, which has the worst effect on bit rates of far end users. The power back off from these subcarriers is done by reducing power spectral masks at respective subcarriers. The results after simulating the proposed algorithm give significant performance advantages in terms of data rate over the traditional iterative water-filling algorithm. These results approach the performance of highly complex optimal spectrum management algorithms while maintaining the complexity of the traditional iterative water-filling algorithm.

Keywords

Digital subscriber line, dynamic spectrum management, iterative water-filling, optimal spectrum balancing, coding scheme

First Page

3483

Last Page

3491

Recommended Citation

SHARMA, SUNIL and SAHU, OM PARKASH (2016) "A dynamic spectrum management algorithm in VDSL systems," Turkish Journal of Electrical Engineering and Computer Sciences: Vol. 24: No. 5, Article 12. https://doi.org/10.3906/elk-1404-441
Available at: https://journals.tubitak.gov.tr/elektrik/vol24/iss5/12