Minimizing Flow Time in the Wireless Gathering Problem

Bonifaci, Vincenzo; Korteweg, Peter; Marchetti-Spaccamela, Alberto; Stougie, Leen

doi:10.4230/LIPIcs.STACS.2008.1338

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Minimizing Flow Time in the Wireless Gathering Problem

Authors Vincenzo Bonifaci, Peter Korteweg, Alberto Marchetti-Spaccamela, Leen Stougie

Part of: Volume: 25th International Symposium on Theoretical Aspects of Computer Science (STACS 2008)
Part of: Series: Leibniz International Proceedings in Informatics (LIPIcs)
Part of: Conference: Symposium on Theoretical Aspects of Computer Science (STACS)
License: Creative Commons Attribution-NoDerivs 3.0 Unported license
Publication Date: 2008-02-06

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Document Identifiers

DOI: 10.4230/LIPIcs.STACS.2008.1338
URN: urn:nbn:de:0030-drops-13381

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Keywords

Wireless networks
data gathering
approximation algorithms
distributed algorithms

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Abstract

We address the problem of efficient data gathering in a wireless
   network through multi-hop communication.  We focus on the objective
   of minimizing the maximum flow time of a data packet.  We prove
   that no polynomial time algorithm for this problem can have
   approximation ratio less than $Omega(m^{1/3)$ when $m$ packets
   have to be transmitted, unless $P = NP$.  We then use resource
   augmentation to assess the performance of a FIFO-like strategy.  We
   prove that this strategy is 5-speed optimal, i.e., its cost remains
   within the optimal cost if we allow the algorithm to transmit data
   at a speed 5 times higher than that of the optimal solution we
   compare to.

Cite As Get BibTex

Vincenzo Bonifaci, Peter Korteweg, Alberto Marchetti-Spaccamela, and Leen Stougie. Minimizing Flow Time in the Wireless Gathering Problem. In 25th International Symposium on Theoretical Aspects of Computer Science. Leibniz International Proceedings in Informatics (LIPIcs), Volume 1, pp. 109-120, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2008) https://doi.org/10.4230/LIPIcs.STACS.2008.1338

Author Details

Vincenzo Bonifaci

Peter Korteweg

Alberto Marchetti-Spaccamela

Leen Stougie

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