Obstacle-avoiding rectilinear Steiner tree construction based on Steiner point selection

Chih Hung Liu*, Shih Yi Yuan, Sy Yen Kuo, Jung Hung Weng

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

14 Scopus citations

Abstract

For the obstacle-avoiding rectilinear Steiner minimal tree (OARSMT) problem, this paper presents a Steiner-point based algorithm to achieve the best practical performance in wirelength and run time. Unlike many previous works, the Steiner-based framework is more focused on the usage of Steiner points instead of the handling of obstacles. This paper also proposes a new concept of Steiner point locations to provide an effective as well as efficient way to generate desirable Steiner point candidates. Experimental results show that this algorithm achieves the best solution quality in Θ(n log n) empirical time, which was originally generated by applying the maze routing on an Ω(n2)-space graph. The Steiner-point based framework and the new concept of Steiner point locations can be applied to future research on the OARSMT problem and its generations, such as the multi-layer OARSMT problem.

Original languageEnglish
Title of host publicationProceedings of the 2009 IEEE/ACM International Conference on Computer-Aided Design - Digest of Technical Papers, ICCAD 2009
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages26-32
Number of pages7
ISBN (Print)9781605588001
DOIs
StatePublished - 2009
Externally publishedYes
Event2009 IEEE/ACM International Conference on Computer-Aided Design, ICCAD 2009 - San Jose, CA, United States
Duration: 02 11 200905 11 2009

Publication series

NameIEEE/ACM International Conference on Computer-Aided Design, Digest of Technical Papers, ICCAD
ISSN (Print)1092-3152

Conference

Conference2009 IEEE/ACM International Conference on Computer-Aided Design, ICCAD 2009
Country/TerritoryUnited States
CitySan Jose, CA
Period02/11/0905/11/09

Keywords

  • Physical design
  • Routing
  • Spanning tree
  • Steiner tree

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