hi to all,
i have read a lot of posts about this two parameters but i have a lot of doubts.
a)
1)RSSI(d)=Pt-PL(d0)-10nlog(d/d0)+chisigma where n=exp path lost, chisigma=gaussian variable
2)LQI=(CORR-a) x b
for formula 2) a and b i found that will be calculated in empirically way....but i need to know how!!!!!!!
someone can help me?
b)
i found that 50<LQI<100 why?
c)
another formula for LQI=255x(RSSI+81)/91
why?
d)
in some post i found some persons that write RSSI and LQI are the same thing,the only difference is that RSSI is given in dBm while LQI is a number betwenn 0 and 255
so we must transform RSSI data RAW in LQI value
is that true?
e)
i need to know the macro that make this trasformation,i try to find it witouh results,can anybody post it?????
i search in mac_radio_defs.h file but i have find nothing