[ns] How to install propagation model

[AZHAR MOHD ARIS]

Please let me know how to install propagation model with step by step
instruction.. thanks

The bad news is :D i found an error when execute the command ns
singlehop.tcl

[EMAIL PROTECTED] :/usr/local/ns2/projek$ ns singlehop.tcl

num_nodes is set 3
invalid command name "Propagation/SimpleDistance"
    while executing
"Propagation/SimpleDistance create _o24 "
    invoked from within
"catch "$className create $o $args" msg"
    invoked from within
> "if [catch "$className create $o $args" msg] {
> if [string match "__FAILED_SHADOW_OBJECT_" $msg] {
> delete $o
> return ""
> }
> global errorInfo
> error "class $..."
>     (procedure "new" line 3)
>     invoked from within
> "new $propType_"
>     (procedure "_o3" line 29)
>     (Simulator node-config line 29)
>     invoked from within
> "$ns_ node-config -mobileIP OFF \
>                   -adhocRouting NOAH \
>                   -llType LL \
>                   -macType Mac/802_11 \
>        ..."
>     (file "singlehop.tcl" line 22)
>
>

-- 
AZHAR MOHD ARIS
UPM MALAYSIA