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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, 2009

Abstract:
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.

Authors:
Mário Alves
,
Nouha Baccour
,
Anis Koubâa
,
Ricardo Severino
,
Gianluca Dini
,
Nuno Pereira
,
Rui Sá
,
Ida Savino
,
Paulo Gandra de Sousa




Record Date: 11, Nov, 2009