ryan m wrote:
hello,
I'm using dei80211mr-1.1.1 and ns-allinone-2.31 and I want to simulate
a typical 802.11g ad-hoc network, so I set the following parameters to
that end.
$mac($i) dataMode_ Mode54Mb
$mac($i) basicMode_ Mode2Mb
With these settings (and several others) I'm getting the error
Tabella non inizializzata 1 repetatly to cerr,
Ok I'll translate that error message to something more meaningful for
english speakers in the next release ;-)
This error occurs when a Packet Error Rate value cannot be found for
some PHYMode. The common reason for the error is that you did not load
the correct Packet Error Rate table into an instance of a PER object.
In the adhoc_tcp.tcl script this is done using the following command:
set per [new PER]
$per loadPERTable80211gTrivellato
but that table is for 802.11g modes only. If you try, e.g., to use
Mode1Mb in the same simluation script, you'll get the error you mentioned.
In dei80211mr we provide also a PER table for 802.11b, which is loaded
using this command:
$per loadPERTable80211bIntersilHFA3861B
You can also define your own PER table if you wish. Just have a look at
src/per_table_*.tcl to see how to do it. The last four values for each
row are: PHYmode packetsize SNR(dB) PacketErrorRate
Regards,
Nicola
