Optimal spectrum management with group power constraint for digital subscriber loops

Author

Xu, Yang ; Panigrahi, Saswat ; Le-Ngoc, Tho

Author_Institution

Dept. of Electr. & Comput. Eng., McGill Univ., Montreal, Que.

fYear

2005

fDate

1-4 May 2005

Firstpage

1598

Lastpage

1601

Abstract

This paper proposes a centralized optimum spectrum management (OSM) technique with group power constraint (GPC), which jointly determines total transmission power and power spectral densities (PSD) of the different lines to control the crosstalks in a fully collaborative manner for digital subscriber lines (DSL) systems. Dual decomposition is employed to develop the algorithm for OSM-GPC. Simulation results for practical DSL systems show that the proposed OSM-GPC can achieve better performance than existing OSM with individual link power constraints. In particular, higher rates can be supported for longer links

Keywords

crosstalk; digital subscriber lines; telecommunication links; telecommunication network management; DSL; digital subscriber lines; digital subscriber loops; group power constraint; link power constraints; optimal spectrum management; power spectral densities; transmission power; ANSI standards; Centralized control; Collaboration; Computational complexity; Computational modeling; Crosstalk; DSL; Modems; Radio spectrum management; Sliding mode control;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical and Computer Engineering, 2005. Canadian Conference on

Conference_Location

Saskatoon, Sask.

ISSN

0840-7789

Print_ISBN

0-7803-8885-2

Type

conf

DOI

10.1109/CCECE.2005.1557288

Filename

1557288