Hi everybody
After Philip Levis's comments on the strange fact that the LQI is better (in
our experiments) for predicting distances, I was doubtful and began to
wonder if there wasn't an error in our experiments. So I decided to
(re-re-)check the code used in our experiments and I found a damn
Hi !
Yes we are in really short distances ( 1-7 m if I remember correctly)
And yes it seemed a bit strange to us
So we did 2 others experiments recording LQI and RSSI in 2 differents
environnements (inside and outside) on a range of ~ 1 to 50 m.
And the RSSI seemed better in this experiment.
I'd like to add that RSSI doesn't seem really correlated with distance in
the experiments we did with our sensors nodes in an inside environnement
with distances going from 1 to 10 meters.
Lqi seem to be more correlated with distance in the same experiment
I can send you our paper about
I'd like to add that RSSI doesn't seem really correlated with distance in
the experiments we did with our sensors nodes in an inside environnement
with distances going from 1 to 10 meters.
Lqi seem to be more correlated with distance in the same experiment
I can send you our paper about this if
On Jul 6, 2007, at 4:09 AM, Van der Haegen Mathieu wrote:
I'd like to add that RSSI doesn't seem really correlated with
distance in the experiments we did with our sensors nodes in an
inside environnement with distances going from 1 to 10 meters.
Lqi seem to be more correlated with
I wondered and googled rssi values vs. distance and reached some
papers.
http://www.ece.rochester.edu/research/wcng/papers/conference/holland_sec
on06.pdf
http://zoo.cs.yale.edu/classes/cs490/03-04b/nana.dankwa.ee.pdf
Firat TARAKTAS
ElectricalElectronics Engineer
Reseracher
GENETLAB
