[ns] Understanding Mobile Nodes movement in NS2

[Nicholas Loulloudes]

Nicholas Loulloudes wrote:
>
> ------------------------------------------------------------------------
>
> Hello all,
>
> I am trying to understand how mobile nodes in NS-2 move and i would like
> any possible help.
>
> Assuming that i have the following mobility scenario where i am
> interested for Node 49:
>
>
> $node_(49) set X_ 696220.000000
> $node_(49) set Y_ 260720.000000
> $node_(49) set Z_ 0.0
> $ns_ at 7.0 "$node_(49) setdest 696193.8102 261479.3690 8.1233"
> ..
> ..
> /* Other Node movements */
> ..
> ..
> $ns_ at 41.0 "$node_(49) setdest 696269.3069 261551.7842 8.7203"
>
> While reading the Nam trace file i can see that at Time= 27.0 , node 49
> is at the following coordinates ( 696087.18 , 261285.68 ). These
> coordinates are no where included in the mobility scenario. How did ns-2
> obtain these coordinates?
>
> Do you know how ns-2 implements node movements? Is there an algorithm
> for this?
>
> Thanks in advance.
>
Any suggestions?

-- 
_________________________________________________

Nicholas Loulloudes
High Performance Computing Systems Laboratory (HPCL)
University of Cyprus,
Nicosia, Cyprus

Tel:  +357-22892663
Email: loulloudes.n[at]cs.ucy.ac.cy