Quality-of-Service in Wireless Sensor Networks: state-of-the-art and future directions
Ref: HURRAY-TR-091108 Publication Date: 11, Nov, 2009
Quality-of-Service in Wireless Sensor Networks: state-of-the-art and future directions
Ref: HURRAY-TR-091108 Publication Date: 11, Nov, 2009Abstract:
Wireless sensor networks (WSNs) are one of today’s most prominent instantiations
of the ubiquituous computing paradigm. In order to achieve high
levels of integration, WSNs need to be conceived considering requirements
beyond the mere system’s functionality. While Quality-of-Service (QoS) is
traditionally associated with bit/data rate, network throughput, message delay
and bit/packet error rate, we believe that this concept is too strict, in
the sense that these properties alone do not reflect the overall quality-ofservice
provided to the user/application. Other non-functional properties
such as scalability, security or energy sustainability must also be considered
in the system design. This paper identifies the most important non-functional
properties that affect the overall quality of the service provided to the users,
outlining their relevance, state-of-the-art and future research directions.
Key words: Wireless Sensor Networks, Quality-of-Service, Non-Functional
Properties, Cooperating Objects, Scalability, Reliability, Timeliness,
Mobility, Heterogeneity, Security, Energy-Sustainability.
Mário Alves
Nouha Baccour
Anis Koubâa
Ricardo Severino
Nuno Pereira
Paulo Gandra de SousaDocument:
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