10.1002/ett.3089
https://zenodo.org/records/851597
oai:zenodo.org:851597
Sciancalepore, Savio
Savio
Sciancalepore
Polytechnic of Bari
Vučinić, Mališa
Mališa
Vučinić
Grenoble Alps University
Piro, Giuseppe
Giuseppe
Piro
Polytechnic of Bari
Boggia, Gennaro
Gennaro
Boggia
Polytechnic of Bari
Watteyne, Thomas
Thomas
Watteyne
Inria
Link-layer security in TSCH networks: effect on slot duration
Zenodo
2016
wirless
TSCH
security
2016-07-29
https://zenodo.org/communities/eu
Creative Commons Attribution 4.0 International
The IEEE802.15.4e-2012 standard is widely used in multi-hop wireless industrial Internet of things applications. In the time-slotted channel hopping mode, nodes are synchronised, and time is cut into timeslots. A schedule orchestrates all communications, resulting in high reliability and low power operations. A timeslot must be long enough for a node to send a data frame to its neighbour, and for that neighbour to send back an acknowledgement. Shorter timeslots enable higher bandwidth and lower latency, yet the minimal timeslot duration is limited by how long link-layer security operations take. We evaluate the overhead of link-layer security in time-slotted channel hopping networks in terms of minimal timeslot length, memory footprint and energy consumption. We implement full link-layer security on a range of hardware platforms, exploring different hardware/software implementation strategies. Through an extensive measurement campaign, we quantify the advantage of hardware accelerations for link-layer security and show how the minimal duration of a timeslot varies between 9 and 88ms for the most common configuration, depending on hardware support. Furthermore, we also highlighted the impact that the timeslot duration has on both high-level application design and energy consumption.
European Commission
10.13039/501100000780
688156
Symbiosis of smart objects across IoT environments