Abstract
Link estimators are extremely important in dynamic wireless sensor networks for obtaining a good network performance because they drive the decisions made by the routing protocol. Many estimators exist but the quality of their estimation depends on the scenario at hand. In this paper, the impact of the estimator on the network performance is investigated in different networking scenarios. Also the influence of the underlying MAC protocol was evaluated. The evaluation was performed both in simulation and on a real-life testbed.
The results clearly show that there is no link estimator that is best in all scenario’s. Another major finding indicates that the results obtained in simulator differ heavily from the testbed results. This illustrates that research findings cannot be solely based on simulation results but also requires real-world experiments. The influence off the underlying MAC protocol is limited on the choice of estimator.
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Acknowledgments
This work was partially supported by the Fund for Scientific Research-Flanders (FWO-V), project “ASN: wireless Acoustic Sensor Networks”, grant #G.0763.12, and the agency for Innovation by Science and Technology Flanders (IWT-V), project “SAMURAI: Software Architecture and Modules for Unified RAdIo control”, and the iMinds IoT Strategic Research program, and European Commission Horizon 2020 Programme under grant agreement n645274 (WiSHFUL).
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Ruckebusch, P., Devloo, J., Carels, D., De Poorter, E., Moerman, I. (2016). An Evaluation of Link Estimation Algorithms for RPL in Dynamic Wireless Sensor Networks. In: Mandler, B., et al. Internet of Things. IoT Infrastructures. IoT360 2015. Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering, vol 170. Springer, Cham. https://doi.org/10.1007/978-3-319-47075-7_40
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