[ns] UMTS and 802.11

[Giovanni Bisegna]

Hi Mario Enrique

> set val(prop) Proppagation/TwoRayGround
> set val(propu) Propagation/UmtsTdd

Yes, I know that i have to use two different propagation model, 
but when i start the simulation I receive a segmentation fault error, 
and i don't know why...do you have any idea?

> So you are going to use two set node-config, one for
> prop (the nodes WLAN) and the other for propu (nodes
> UMTS). But there are another characteristics like
> network interface, mac, ll and ifq that are different.

Thanks, i know that ll, mac and ifq are different, but i don't know 
why the script doesn't work.

Thank you again

Giovanni Bisegna

PS: If you want i can send the tcl code that i use...