Throughput and delay of dsl dynamic spectrum management with dynamic arrivals

Paschalis Tsiaflakis, Yung Yi, Mung Chiang, Marc Moonen

Research output: Chapter in Book/Report/Conference proceedingConference contribution

5 Scopus citations

Abstract

In modern DSL networks, crosstalk among different lines (i.e., users) is the major source of performance degradation. Dynamic spectrum management (DSM) refers to a set of techniques to mitigate the effect of crosstalk leading to spectacular performance gains. However the main research efforts in DSM aim at only physical layer performance whereas the true end user experience depends on what they see at the application rather than the physical layer. Upper layer performance metrics like throughput and delay may be much more important to improve the user satisfaction. To that end, we provide a framework to study upper layer performance by looking at scheduling and DSM together. We show how optimal scheduling can be combined with optimal DSM and provide throughput-optimal scheduling algorithms which require only polynomial complexity. We furthermore present extensions that significantly improve delay performance by using the specific structure of the underlying problem.

Original languageEnglish (US)
Title of host publication2008 IEEE Global Telecommunications Conference, GLOBECOM 2008
Pages2832-2836
Number of pages5
DOIs
StatePublished - Dec 1 2008
Event2008 IEEE Global Telecommunications Conference, GLOBECOM 2008 - New Orleans, LA, United States
Duration: Nov 30 2008Dec 4 2008

Publication series

NameGLOBECOM - IEEE Global Telecommunications Conference

Other

Other2008 IEEE Global Telecommunications Conference, GLOBECOM 2008
CountryUnited States
CityNew Orleans, LA
Period11/30/0812/4/08

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering

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