[Tinyos-help] Correlation between LQI and RSSI

[Kevin Klues]

They should be different values.  Depending on how big your payloads
were when you ran these experiments though, the followign bug was
recently fixed and only exists in CVS

http://www.mail-archive.com/tinyos-help@millennium.berkeley.edu/msg17626.html

Kevin

On Jan 27, 2008 3:49 PM, Daria Wotzka (Geb. Zmarzly)
<Daria.Zmarzly at gmx.net> wrote:
> Dear TinyOS profs,
>
> I have made an experiments with TMote Sky (from moteiv) devices and
> collected the RSSI and LQI values given by Tiny OS 2.0 that is installed
> on motes. Actually I have expected that LQIs are the correlation values
> supported by CC2420 and RSSI is the signal strength in dBm just scaled to
> the range defined in the 802.11.4 standard. As I plotted these values and
> made some calculations and I have found out that the plots are exactly the
> same and the correlation coefficient is 1. Does anybody have a clue why?
>
> Daria
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-- 
~Kevin