[ns] How to change data rate (modulation) in NIST 802.16e

Hi everyone, I try to change data rate (modulation) in 802.16 with TCP connection, but these is only one modulation can be set, I dunno how to change various modulations when I running TCP, here is part of code: == $ns_ at 0.0 [$node_(0) set

[ns] Fwd: help needed for using nam

Hi, I have just started using ns-2.34 in Cygwin-X environment. I've set all the paths as required but when i tried to run *nam out.nam* {out.nam had been created by the simulation file} I get the following error message: *nam: no display name and no $DISPLAY environment variable.* Can