Instance at TU Dresden#
For now (February 2026) the testbed is reshaped to mimic an elongated multihop mesh-network on the lower part of the office-map.
The initial deployment covered the ring of offices around the buildings ventilation system. The inner structure mostly blocks RF due to lots of metal vents. 10 - 14 shepherd observers were used for the testrun. Unfortunately the RF-Performance of the nodes was not strong enough to close the gap between II62 and II75 (left side of plan).
Deployment#
Below is a screenshot of the Campus-Navigator with marked node-positions.
CFAED floor with marked node-positions. Most horizontal walls are concrete, while the walls between offices are drywall.#
Link-Matrix#
The link-matrix of the testbed is currently measured mostly after changes in deployment. It is planned to offer weekly scans in the future while also keeping the history available.
Tx⟍Rx 1 2 3 4 5 6 7 8 9 10 11
+-----------------------------------------------------------------
1 | -36 -57 -64 -67 -73 -84 -81
2 | -37 -49 -65 -64 -69 -83
3 | -57 -49 -56 -49 -60 -86 -76
4 | -63 -64 -55 -44 -49 -70 -60
5 | -67 -63 -48 -44 -53 -68 -70
6 | -73 -68 -59 -49 -53 -59 -64 -80 -78
7 | -83 -85 -70 -67 -58 -53 -76 -61 -77
8 | -82 -82 -76 -61 -71 -65 -54 -85 -73
9 | -80 -77 -84 -40 -74
10 | -79 -62 -73 -41 -82
11 | -78 -74 -82
Changes in near Future#
Currently new hardware is manufactured, validated and calibrated.
With the official public release of the testbed in January 2026 it is planned to roll out an extended layout:
floor with marked future node-positions. Most horizontal walls are concrete, while the walls between offices are drywall.#
What does that mean for the user?#
number of observable GPIO from the target increases from 9 to 12, see table here
two power good signals to communicate current state of the virtual source to the target (similar to Riotee) for more advanced intermittent computing algorithms
usable node-count increases from 11 to 20+ for enabling more complex scenarios and a wider range of topologies