[ns] Missing MAC collisions in EDCA simulations

2006-08-06 Thread Sven Kopetzki
Hello All, I recently played around with the IEEE 802.11e EDCA Model from TKN Berlin. I used ns 2.28. I enabled MAC tracing in their example script 'multi_udpflows.tcl' and set all UDP agents to priority 0. Surprisingly there were no collisions in the trace file. So, I disabled edca support [set

[ns] ns 2.28 default values for IEEE 802.11

2006-08-14 Thread Sven Kopetzki
I want to set phy and mac parameters for 802.11a and 802.11b. I wonder about some duplicate default values in tcl-files of ns2.28. During a search within tcl-files I found some duplicate entries (disregarding upper and lower case) e.g. for CWMin_, CWMax_, SlotTime_ and SIFS_ in ~\ns-allinone-2.28_