Ensuring fair coexistence of multimedia applications in a wireless home

  • Authors:
  • Claudio E. Palazzi;Nicola Stievano;Marco Roccetti;Gustavo Marfia

  • Affiliations:
  • Dipartimento di Matematica Pura ed Applicata, Università degli Studi di Padova, Padova, Italy;Dipartimento di Matematica Pura ed Applicata, Università degli Studi di Padova, Padova, Italy;Dipartimento di Scienze dell'Informazione, Università di Bologna, Bologna, Italy;Dipartimento di Scienze dell'Informazione, Università di Bologna, Bologna, Italy

  • Venue:
  • WD'09 Proceedings of the 2nd IFIP conference on Wireless days
  • Year:
  • 2009

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Abstract

Nowadays, wireless connectivity is increasingly available in homes to support heterogeneous multimedia applications. However, with current off-the-shelf systems, real-time applications (e.g., video streaming, online games) suffer from delays caused by the interference with elastic (e.g., TCP-based downloading sessions) ones. Furthermore, simultaneous elastic application flows are not able to fairly share the same bottleneck, severely damaging those featured with long round-trip times (RTTs). In this article, we discuss how a solution based on a smart access point can actually solve these problems, ensuring low per-packet delays to real-time applications and both high and RTT-fair throughput to elastic ones. We discuss the experimental outcome of our solution showing the benefits achieved with respect to using the legacy protocols and even to adopting a TCP Vegas-based solution, known for providing the same goals we are aiming at.