RT Conference Proceedings
T1 IEEE 802.15.4 TSCH in Sub-GHz: Design Considerations and Multi-band Support
A1 Brachmann, Martina
A1 Duquennoy, Simon
A1 Tsiftes, Nicolas
A1 Voigt, Thiemo
AB In this paper, we address the support of Time-Slotted Channel Hopping (TSCH) on multiple frequency bands within a single TSCH network. This allows to simultaneously run applications with different requirements on link characteristics and to increase resilience against interference. To this end, we first enable sub-GHz communication in TSCH, which has been primarily defined for the 2.4 GHz band. Thereafter, we propose two designs to support multiple physical layers in TSCH on the same nodes. Our experimental evaluation shows that TSCH is applicable in a wide range of data rates between 1.2 kbps and 1000 kbps. We find that data rates of 50 kbps and below have a long communication range and a nearly perfect link symmetry, but also have a 20x higher channel utilization compared to higher data rates, increasing the risk of collisions. Using these findings, we show the advantages of the multi-band support on the example of synchronization accuracy when exchanging TSCH beacons with a low data rate and application data at a high data rate.
PB IEEE
YR 2019
FD 2019
LK https://hdl.handle.net/10016/29060
UL https://hdl.handle.net/10016/29060
LA eng
NO This paper has been presented at :  The 44th IEEE Conference on Local Computer Networks (LCN) October 14-17, 2019.
NO In Press / En Prensa
NO This work was financed by the H2020 collaborative Europe/Taiwan research project 5G-CORAL (grant num. 761586), the ERCIM Alain Bensoussan postdoc fellowship program, and the distributed environment E-care@home, funded by the Swedish Knowledge Foundation.
DS e-Archivo
RD 3 jun. 2024