Wireless sensor networks (WSNs) became one of the high-technology domains during the last  years. Real-time applications for them make it necessary to provide the guaranteed Quality of Service (QoS). The main contributions of the paper are a service framework and a guaranteed QoS model that are suitable for the WSNs with some characteristics of the distribution, multi-hop, etc . To do it, we develop a sensor node model based on virtual buffer sharing and present a two-layer scheduling model by arrival curves and service curves in the network calculus. With this service framework , we develop a guaranteed QoS model, such as the upper bounds on buffer queue length , buffer queue delay, end-to-end delay/jitter and end-to-end effective bandwidth. Numerical results show that the service framework and guaranteed QoS model are highly scalable for different types of input flows, including the self-similar input flows, and they are only affected by the parameters of service curves and flow regulators . Our proposal leads to buffer dimensioning, guaranteed QoS support and control in  WSNs.
Wireless sensor networks (WSNs) became one of the high technology domains during the last ten years. Real-time applications for them make it necessary to provide the guaranteed Quality of Service (QoS). The main contributions of this paper are a system skeleton and a guaranteed QoS model that are suitable for the WSNs . To do it, we develop a sensor node model based on virtual buffer sharing and present a two-layer scheduling model using the network calculus. With the system skeleton , we develop a guaranteed QoS model, such as the upper bounds on buffer queue length /delay/effective bandwidth, and single-hop/ multi-hops delay/jitter / effective bandwidth. Numerical results show the system skeleton and the guaranteed QoS model are scalable for different types of flows, including the self-similar traffic flows, and the parameters of flow regulators and service curves of sensor nodes affect them . Our proposal leads to buffer dimensioning, guaranteed QoS support and control in the WSNs.
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high-technology
high technology
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ten
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the
this
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service framework
system skeleton
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with some characteristics of the distribution, multi-hop, etc
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by arrival curves and service curves in
using
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this service framework
the system skeleton
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, buffer queue delay, end-to-end
/delay/effective bandwidth, and single-hop/ multi-hops
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and end-to-end
/
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that the service framework and
the system skeleton and the
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highly
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input
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input
traffic
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they are only affected by
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service curves and flow regulators
flow regulators and service curves of sensor nodes affect them
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the