[Olsr-users] OLSR in Android...a good idea?

Juliusz Chroboczek (spam-protected)
Fri Oct 15 15:32:45 CEST 2010


> I've just discovered the following document on Google:
>
> Enhancing the 'Willingness' on the OLSR Protocol to Optimize
> the Usage of Power Battery Power Sources Left
> http://www.cscjournals.org/csc/manuscript/Journals/IJE/Volume2/Issue3/IJE-15.pdf
>
> I thought I would point this out with regards the context of power
> optimization and Willingness being discussed here.
>
> I'm no expert on olsr however I would appreciate if someone could tell me if
> the optimizations mentioned in this study are in line with those already
> being implemented for olsr?

They are identical to the ones already in olsrd.

What people don't realise is that OLSR's ``willingness'' is the
willingness to become MPR; in existent variants of OLSR, all nodes are
equally willing to route data packets.  In other words, OLSR (RFC)
always minimises hop count, OLSR-ETX always minimises ETX, and neither
is able to take battery status into account.

Note that metrics depending on battery status would not be difficult to
add, either to OLSR-ETX or OLSRv2.  Note further that they are trivial
to add to distance-vector, where it is possible to play a lot of
interesting tricks with metrics with no risk of incurring routing loops.

                                        Juliusz





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