English
 
Help Privacy Policy Disclaimer
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT
  Scheduling multicasts on unit-capacity trees and meshes

Henzinger, M. R., & Leonardi, S.(1998). Scheduling multicasts on unit-capacity trees and meshes (MPI-I-1998-1-015). Saarbrücken: Max-Planck-Institut für Informatik.

Item is

Files

show Files
hide Files
:
MPI-I-98-1-015.pdf (Any fulltext), 393KB
Name:
MPI-I-98-1-015.pdf
Description:
-
Visibility:
Public
MIME-Type / Checksum:
application/pdf / [MD5]
Technical Metadata:
Copyright Date:
-
Copyright Info:
-
License:
-

Locators

show

Creators

show
hide
 Creators:
Henzinger, Monika R.1, Author
Leonardi, Stefano2, Author              
Affiliations:
1External Organizations, ou_persistent22              
2Algorithms and Complexity, MPI for Informatics, Max Planck Society, ou_24019              

Content

show
hide
Free keywords: -
 Abstract: This paper studies the multicast routing and admission control problem on unit-capacity tree and mesh topologies in the throughput-model. The problem is a generalization of the edge-disjoint paths problem and is NP-hard both on trees and meshes. We study both the offline and the online version of the problem: In the offline setting, we give the first constant-factor approximation algorithm for trees, and an O((log log n)^2)-factor approximation algorithm for meshes. In the online setting, we give the first polylogarithmic competitive online algorithm for tree and mesh topologies. No polylogarithmic-competitive algorithm is possible on general network topologies [Bartal,Fiat,Leonardi, 96], and there exists a polylogarithmic lower bound on the competitive ratio of any online algorithm on tree topologies [Awerbuch,Azar,Fiat,Leighton, 96]. We prove the same lower bound for meshes.

Details

show
hide
Language(s): eng - English
 Dates: 1998
 Publication Status: Published in print
 Pages: 38 p.
 Publishing info: Saarbrücken : Max-Planck-Institut für Informatik
 Table of Contents: -
 Rev. Type: -
 Identifiers: Report Nr.: MPI-I-1998-1-015
BibTex Citekey: HenzingerLeonardi98
 Degree: -

Event

show

Legal Case

show

Project information

show

Source 1

show
hide
Title: Research Report / Max-Planck-Institut für Informatik
Source Genre: Series
 Creator(s):
Affiliations:
Publ. Info: -
Pages: - Volume / Issue: - Sequence Number: - Start / End Page: - Identifier: -