Computer Simulation Performance of Iterative Water-Filling Algorithm for ADSL2+ and VDSL Mixed System

Author

Xu, Jian ; Seo, Jong-Soo ; Xue, Lu ; Song, Sang Seob

Author_Institution

Yonsei Univ., Seoul

fYear

2007

fDate

23-24 Nov. 2007

Firstpage

368

Lastpage

372

Abstract

Crosstalk is a major issue in modern ADSL and VDSL systems. Static spectrum management (SSM), the traditional way to guarantee spectrum compatibility, employs spectral masks which can be overly restrictive and result in poor performance. In this paper, fixed margin iterative water-filling algorithm is applied in downstream VDSL and ADSL2+ scenario when they are in the same binder. The algorithm can minimize the transmission power and at the same time the overall high-quality service is guaranteed for all the users of the same binder. The simulation results show that ADSL2+ can realize performance gains by up to 80% compared with SSM techniques or ADSL.

Keywords

digital subscriber lines; iterative methods; telecommunication network management; ADSL2+; VDSL mixed system; asymmetric digital subscriber lines; computer simulation performance; iterative water-filling algorithm; static spectrum management; very high speed digital subscriber lines; Background noise; Computer simulation; Crosstalk; DSL; Frequency; Intersymbol interference; Iterative algorithms; Modems; Optical network units; Radio spectrum management;

fLanguage

English

Publisher

ieee

Conference_Titel

Information Technology Convergence, 2007. ISITC 2007. International Symposium on

Conference_Location

Joenju

Print_ISBN

0-7695-3045-1

Electronic_ISBN

978-0-7695-3045-1

Type

conf

DOI

10.1109/ISITC.2007.38

Filename

4410667