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
-- Forwarded message --
From: Van der Haegen Mathieu [EMAIL PROTECTED]
Date: Jul 6, 2007 1:03 PM
Subject: Re: [Tinyos-help] relationship between RSSI and distance
To: CASTEL Myriam [EMAIL PROTECTED]
Hi !
Here is an interesting paper about RSSI :
http://sing.stanford.edu/pubs/rssi
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
/6/2007, Van der Haegen Mathieu [EMAIL PROTECTED] wrote:
-- Forwarded message --
From: Van der Haegen Mathieu [EMAIL PROTECTED]
Date: Jul 6, 2007 1:03 PM
Subject: Re: [Tinyos-help] relationship between RSSI and distance
To: CASTEL Myriam [EMAIL PROTECTED]
Hi !
Here
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
Hello,
I'm sorry if you already have had this message but my server lost all
mail of yesterday afternoon, so I don't know if you received it and if
you answered.
Please reply you response if you have done one yesterday.
I'm trying to use RSSI value to obtain the distance between two sensor
Hello,
I'm trying to use RSSI value to obtain the distance between two sensor
nodes mica2.
I know that a lot of such experiments are made and that a lot of people
use this method.
However, when I do the experiment, I obtain unexploitable results:
- between 0 and 70 cm, I obtain always the
Myriam
Sent: Wednesday, July 04, 2007 4:35 PM
To: tinyos-help@Millennium.Berkeley.EDU
Subject: [Tinyos-help] relationship between RSSI and distance
Hello,
I'm trying to use RSSI value to obtain the distance between two sensor
nodes mica2.
I know that a lot of such experiments are made and that a lot
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