Autor: | D. Meier, E. Blaß, M. Pink, S. Kellner, E. Blaß, S. Kellner | Links: | Bibtex |
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Quelle: | Proceedings of IEEE Fifth Annual Conference on Wireless On demand Network Systems and Services, 97-100, Garmisch-Partenkirchen, Germany, Januar 2008 | ||
Energy consumption is one of the most critical protocol properties in
a wireless sensor network. Therefore, a precise energy model is
required for the evaluation of protocols. In addition to evaluation,
an energy model can also be used for on-line energy accounting. After
processing user queries, nodes aware of the energy model can send an
energy bill towards the network's sink. This allows the user to adjust
future queries to be more energy efficient. The contribution of this
paper is twofold: First, a theoretical energy model based on simple
finite automata is presented. This model can be used for on-line
accounting, simulation and generation of a-priori knowledge. Second,
the proposed theoretical model is backed up by practical measurements
using a new measurement device called SNMD that also offers management
functions for sensor-net testbeds. Therewith, output of the
theoretical model can be compared to and justified by real-world
measurements.