Broadcasting in Undirected Ad hoc Radio Networks

Dariusz R. Kowalski, Andrzej Pelc

Research output: Contribution to conferencePaper

Abstract

We consider distributed broadcasting in radio networks, modeled as undirected graphs, whose nodes have no information on the topology of the network, nor even on their immediate neighborhood. For randomized broadcasting, we give an algorithm working in expected time O(D log(n/D)+log2 n) in n-node radio networks of diameter D, which is optimal, as it matches the lower bounds of Alon et al. and Kushilevitz and Mansour. Our algorithm improves the best previously known randomized broadcasting algorithm of Bar-Yehuda, Goldreich and Itai, running in expected time O(D log n+log2 n). For deterministic broadcasting, we show the lower bound Ω(n logn/log(n/D)) on broadcasting time in n-node radio networks of diameter D. This implies previously known lower bounds of Bar-Yehuda, Goldreich and Itai and Bruschi and Del Pinto, and is sharper than any of them in many cases. We also give an algorithm working in time O(n log n), thus shrinking - for the first time - the gap between the upper and the lower bound on deterministic broadcasting time to a logarithmic factor.

Original languageEnglish (US)
Pages73-82
Number of pages10
StatePublished - Dec 1 2003
Externally publishedYes
EventTwenty-Second Annual ACM Symposium on Principles of Distributed Computing, PODC 2003 - Boston, MA, United States
Duration: Jul 13 2003Jul 16 2003

Conference

ConferenceTwenty-Second Annual ACM Symposium on Principles of Distributed Computing, PODC 2003
CountryUnited States
CityBoston, MA
Period7/13/037/16/03

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Broadcasting
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ASJC Scopus subject areas

  • Software
  • Hardware and Architecture
  • Computer Networks and Communications

Cite this

Kowalski, D. R., & Pelc, A. (2003). Broadcasting in Undirected Ad hoc Radio Networks. 73-82. Paper presented at Twenty-Second Annual ACM Symposium on Principles of Distributed Computing, PODC 2003, Boston, MA, United States.

Broadcasting in Undirected Ad hoc Radio Networks. / Kowalski, Dariusz R.; Pelc, Andrzej.

2003. 73-82 Paper presented at Twenty-Second Annual ACM Symposium on Principles of Distributed Computing, PODC 2003, Boston, MA, United States.

Research output: Contribution to conferencePaper

Kowalski, DR & Pelc, A 2003, 'Broadcasting in Undirected Ad hoc Radio Networks', Paper presented at Twenty-Second Annual ACM Symposium on Principles of Distributed Computing, PODC 2003, Boston, MA, United States, 7/13/03 - 7/16/03 pp. 73-82.
Kowalski DR, Pelc A. Broadcasting in Undirected Ad hoc Radio Networks. 2003. Paper presented at Twenty-Second Annual ACM Symposium on Principles of Distributed Computing, PODC 2003, Boston, MA, United States.
Kowalski, Dariusz R. ; Pelc, Andrzej. / Broadcasting in Undirected Ad hoc Radio Networks. Paper presented at Twenty-Second Annual ACM Symposium on Principles of Distributed Computing, PODC 2003, Boston, MA, United States.10 p.
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