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Queueing Systems

, 63:195 | Cite as

Coding and control for communication networks

  • Wei Chen
  • Danail Traskov
  • Michael Heindlmaier
  • Muriel Médard
  • Sean Meyn
  • Asuman Ozdaglar
Article

Abstract

The purpose of this paper is to survey techniques for constructing effective policies for controlling complex networks, and to extend these techniques to capture special features of wireless communication networks under different networking scenarios. Among the key questions addressed are:
  1. (i)

    The relationship between static network equilibria, and dynamic network control.

     
  2. (ii)

    The effect of coding on control and delay through rate regions.

     
  3. (iii)

    Routing, scheduling, and admission control.

     
Through several examples, ranging from multiple-access systems to network coded multicast, we demonstrate that the rate region for a coded communication network may be approximated by a simple polyhedral subset of a Euclidean space. The polyhedral structure of the rate region, determined by the coding, enables a powerful workload relaxation method that is used for addressing complexity—the relaxation technique provides approximations of a highly complex network by a far simpler one.

These approximations are the basis of a specific formulation of an h-MaxWeight policy for network routing. Simulations show a 50% improvement in average delay performance as compared to methods used in current practice.

Routing Scheduling Networks Coding Information theory Approximate dynamic programming 

Mathematics Subject Classification (2000)

68M20 68M10 90B18 90B15 94A05 

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Copyright information

© Springer Science+Business Media, LLC 2009

Authors and Affiliations

  • Wei Chen
    • 1
  • Danail Traskov
    • 2
  • Michael Heindlmaier
    • 2
  • Muriel Médard
    • 3
  • Sean Meyn
    • 1
  • Asuman Ozdaglar
    • 3
  1. 1.Department of Electrical and Computer Engineering and the Coordinated Sciences LaboratoryUniversity of Illinois at Urbana-ChampaignUrbanaUSA
  2. 2.Institute for Comm. EngineeringTechnical University MunichMunichGermany
  3. 3.Department of Electrical Engineering and Computer ScienceMassachusetts Institute of TechnologyCambridgeUSA

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