Packet routing: complexity and algorithms

  • Authors:
  • Britta Peis;Martin Skutella;Andreas Wiese

  • Affiliations:
  • Technische Universität Berlin, Berlin, Germany;Technische Universität Berlin, Berlin, Germany;Technische Universität Berlin, Berlin, Germany

  • Venue:
  • WAOA'09 Proceedings of the 7th international conference on Approximation and Online Algorithms
  • Year:
  • 2009

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Abstract

Store-and-forward packet routing belongs to the most fundamental tasks in network optimization. Limited bandwidth requires that some packets cannot move to their destination directly but need to wait at intermediate nodes on their path or take detours. In particular, for time critical applications, it is desirable to find schedules that ensure fast delivery of the packets. It is thus a natural objective to minimize the makespan, i.e., the time at which the last packet arrives at its destination. In this paper we present several new ideas and techniques that lead to novel algorithms and hardness results.