[net2-wg] link estimator interface

[Joe Polastre]

Its ratiometric.  Ie, if node A has a value of 20, then any node (say
node B) with a value < (20 - (20 >> 2)) = < 15 is at least 25% better
(less transmissions required).  That's relative, node B is estimated
to require 25% less transmissions than node A.

-Joe

On 3/6/06, henri dubois-ferriere <henridf at gmail.com> wrote:
> can someone explain what a relative ETX is?
>
> thanks
> henri
>
>
>
>
> On 06/03/06, Joe Polastre <joe at polastre.com> wrote:
> > > where v is the LQI. Given than an LQI of 100 (very good) will return
> > > 125, which is far from the ETX (~1.05-1.1).
> >
> > As per previous email--its a relative value, not absolute.  Besides,
> > do you really want to work with floating point on the mote???
> >
> > -Joe
> >
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>