[Tinyos-devel] Lqi and CC2420

[Omprakash Gnawali]

On Fri, Feb 29, 2008 at 2:03 AM, Andreas Koepke <koepke at tkn.tu-berlin.de> wrote:
> Omprakash Gnawali:
>  > On Thu, Feb 28, 2008 at 1:58 PM, Philip Levis <pal at cs.stanford.edu> wrote:
>  >> On Feb 28, 2008, at 11:59 AM, Andreas Koepke wrote:
>  > ...
>  >>  The big impact is that it defines a LinkCost interface, which is now
>  >>  expected to be a value component component reports based on the
>  >>  source address of a packet. The assumption in your approach is that
>  >>  it can be an HIL. For this to work, different link layers or link
>  >>  estimators need to be designed that meet this interface.  Adding such
>  >>  an interface to the core distribution should probably involve
>  >>  discussions with net2 and core. The net2 WG spent a lot of time on
>  >>  this topic, and settling on the white bit involved a great deal of
>  >>  discussion back and forth with core[2,3].
>  >
>  > A related discussion: if a chip provides RSSI and LQI, what would
>  > LinkCost return and why?
>  >
>  > - om_p
>
>  Pragmatically: something that delivers a comparable performance.

Phil can elaborate more because he has looked at RSSI and LQI in
detail but it is not clear if one can get comparable performance using
RSSI vs LQI.

- om_p