QoS support in wireless sensor networks: A survey

Dazhi Chen, Pramod K. Varshney

Research output: Contribution to conferencePaperpeer-review

385 Scopus citations


In this paper, we assess the state of the art of Quality of Services (QoS) support in wireless sensor networks (WSNs). Unlike traditional end-to-end multimedia applications, many non-end-to-end mission-critical applications envisioned for WSNs have brought forward new QoS requirements on the network. Further, unique characteristics of WSNs, such as extremely resource-constrained sensors, large-scale random deployment, and novel data-centric communication protocols, pose unprecedented challenges in the area of QoS support in WSNs. Thus, we first review the techniques for QoS support in traditional networks, analyze new QoS requirements in WSNs from a wide variety of applications classified by data delivery models, and propose some non-end-to-end collective QoS parameters. Next, the challenges of QoS support in this new paradigm are presented. Finally, we comment on current research efforts and identify many exciting open issues in order to stimulate more research interest in this largely unexplored area.

Original languageEnglish (US)
Number of pages7
StatePublished - 2004
EventProceedings of the International Conference on Wireless Networks, ICWN'04 - Las Vegas, NV, United States
Duration: Jun 21 2004Jun 24 2004


OtherProceedings of the International Conference on Wireless Networks, ICWN'04
Country/TerritoryUnited States
CityLas Vegas, NV


  • Collective QoS
  • QoS
  • Wireless networks
  • Wireless sensor networks

ASJC Scopus subject areas

  • General Engineering


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