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The rapid growth of the Internet of Things paradigm is pushing the need to
connect billions of batteryoperated devices to the internet and among them. To
address this need, the introduction of energy-efficient wireless mesh networks
based on Bluetooth provides an effective solution. This paper proposes a
testbed setup to accurately evaluate and compare the standard Bluetooth Mesh
5.0 and the emerging energy-efficient Wirepas protocol that promises better
performance. The paper presents the evaluation in terms of power consumption,
energy efficiency, and transmission latency which are the most crucial
features, in a controlled and reproducible test setup consisting of 10 nodes.
Experimental results demonstrated that Wirepas has a median latency of 2.83 ms
in Low-Latency mode respectively around 2 s in the Low-Energy mode. The
corresponding power consumption is 6.2 mA in Low-Latency mode and 38.9 uA in
Low-Energy mode. For Bluetooth Mesh the median latency is 4.54 ms with a power
consumption of 6.2 mA at 3.3 V. Based on this comparison, conclusions about the
advantages and disadvantages of both technologies can be drawn.
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