Routing in polygonal domains

Bahareh Banyassady, Man Kwun Chiu, Matias Korman, Wolfgang Mulzer, André van Renssen, Marcel Roeloffzen, Paul Seiferth, Yannik Stein, Birgit Vogtenhuber, Max Willert

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

2 Citations (Scopus)
13 Downloads (Pure)


We consider the problem of routing a data packet through the visibility graph of a polygonal domain P with n vertices and h holes. We may preprocess P to obtain a label and a routing table for each vertex. Then, we must be able to route a data packet between any two vertices p and q of P, where each step must use only the label of the target node q and the routing table of the current node. For any fixed ϵ > 0, we present a routing scheme that always achieves a routing path that exceeds the shortest path by a factor of at most 1 + ϵ. The labels have O(log n) bits, and the routing tables are of size O((ϵ-1+h) log n). The preprocessing time is O(n2 log n+hn2+ ϵ-1hn). It can be improved to O(n2 + ϵ-1n) for simple polygons.

Original languageEnglish
Title of host publication28th International Symposium on Algorithms and Computation, ISAAC 2017
EditorsY. Okamoto, T. Tokuyama
Place of PublicationDagstuhl
PublisherSchloss Dagstuhl - Leibniz-Zentrum für Informatik
Number of pages13
ISBN (Electronic)9783959770545
Publication statusPublished - 1 Dec 2017
Externally publishedYes
Event28th International Symposium on Algorithms and Computation (ISAAC 2017) - Phuket, Thailand
Duration: 9 Dec 201712 Dec 2017
Conference number: 28

Publication series

NameLeibniz International Proceedings in Informatics (LIPIcs)
ISSN (Print)1868-8969


Conference28th International Symposium on Algorithms and Computation (ISAAC 2017)
Abbreviated titleISAAC 2017
Internet address


  • Polygonal domains
  • Routing scheme
  • Small stretch
  • Yao graph


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