Poster: Is Less More? Comparing TSCH and CSL on the FIT IoT-LAB

Autor	Krentz, Konrad-Felix; Eckel, Michael
Datum	2026
Art	Conference Paper
Abstrakt	Timeslotted channel hopping (TSCH) is a standardized medium access control (MAC) protocol for IEEE 802.15.4 networks. Its approach is to proactively avoid internal interference through careful scheduling. Conversely, coordinated sampled listening (CSL), another standardized MAC protocol for IEEE 802.15.4 networks, works in a contention-based manner. Thus far, only Zhou et al. empirically compared TSCH and CSL to the best of our knowledge. However, they tested implementations of TSCH and CSL that lacked recent enhancements, and they only employed small-scale Cooja simulations. Our poster expands on their work by reporting on real-world benchmarks of up-to-date implementations of TSCH and CSL. Diverging from Zhou et al.'s results, CSL reduced duty cycling by up to 80.0% compared to TSCH. On the other hand, CSL generally incurred longer delays and higher jitters than TSCH, diverging from Zhou et al.'s results, as well. When accelerating CSL's wake ups to match the delays and jitters of TSCH, CSL still lowered duty cycling between 50.2% and 54.9%, depending on the traffic rate.
Konferenz	International Conference on Embedded Wireless Systems and Networks 2026
Url	https://publica.fraunhofer.de/handle/publica/525298

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