IEEE 802.11 WLAN for medical-grade QoS

  • Authors:
  • Kyung-Joon Park;Deepesh M. Shrestha;Young-Bae Ko;Nitin H. Vaidya;Lui Sha

  • Affiliations:
  • University of Illinois at Urbana-Champaign, Urbana, IL, USA;Ajou University, Suwon, South Korea;Ajou University, Suwon, South Korea;University of Illinois at Urbana-Champaign, Urbana, IL, USA;University of Illinois at Urbana-Champaign, Urbana, IL, USA

  • Venue:
  • Proceedings of the 1st ACM international workshop on Medical-grade wireless networks
  • Year:
  • 2009

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Abstract

In this paper, we study the problem of how to design a medical-grade wireless LAN for healthcare facilities. Unlike IEEE 802.11e MAC, which categorizes traffic primarily by delay constraint, we prioritize medical applications into access categories according to medical criticality. We design a fully-distributed contention control mechanism that can efficiently utilize wireless channel for improving medical-grade QoS. We further derive a sufficient condition for the convergence of the proposed algorithm. Our simulation result shows that our medical access categorization and the contention control mechanism significantly improve the performance of a medical network over the conventional IEEE 802.11e MAC.