Non disruptive data services towards real-time traffic in wireless ad hoc networks

  • Authors:
  • Jérémie Leguay;Hicham Khalife;Georgios Sotiropoulos;Vania Conan;Naceur Malouch

  • Affiliations:
  • Thales Communications;UPMC Univ Paris;Thales Communications;Thales Communications;UPMC Univ Paris

  • Venue:
  • ICC'09 Proceedings of the 2009 IEEE international conference on Communications
  • Year:
  • 2009

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Abstract

Mobile wireless Ad hoc NETworks (MANETs) naturally support a traffic mix of elastic and real-time flows but the shared nature and lossy properties of the radio medium make their coexistence challenging. We argue in this paper for a new kind of elastic data transport service which would preserve the quality of real-time priority flows while guaranteeing an acceptaple (tunable) end-to-end delivery time of elastic data. We propose to use mechanisms from Delay Tolerant Networking (DTN) to support hop-by-hop data transfer from source to destination and an adaptation of TCP which monitors its agressiveness towards local VoIP traffic on each hop. The scheme is evaluated in simulation on a simple 4-node scenario and in a more realistic case where doubling data transfer time allows for the support of seven VoIP flows of medium quality against none for standard TCP.