hello,
I have patched ns-2.28 with EURANE. I wanted to test the UMTS link but
my code seem to contain some error. UE, node 2 in my case, is not
connected as visible in nam even though I have created a DCH channel.
Can anyone give a hint what could be wrong in the following script.
Thank you in anticipation. cheers,
Luqman
.............................................
#Create a simulator object
set ns [new Simulator]
#Open the nam trace file
set nf [open out.nam w]
$ns namtrace-all $nf
#Define a 'finish' procedure
proc finish {} {
global ns nf
$ns flush-trace
#Close the trace file
close $nf
#Execute nam on the trace file
exec nam out.nam &
puts "Simulation ended!"
exit 0
}
# Insert your own code for topology creation
# and agent definitions, etc. here
# Node address is 0
$ns node-config -UmtsNodeType rnc
set rnc [$ns create-Umtsnode]
# Node address is 1
$ns node-config -UmtsNodeType bs \
-downlinkBW 32kbs \
-downlinkTTI 10ms \
-uplinkBW 32kbs \
-uplinkTTI 10ms \
set bs [$ns create-Umtsnode]
#Iub configuration between RNC and BS
$ns setup-Iub $bs $rnc 622Mbit 622Mbit 15ms 15ms DummyDropTail 2000
# Node address for ue1 is 2
$ns node-config -UmtsNodeType ue \
-baseStation $bs \
-radioNetworkController $rnc
set ue1 [$ns create-Umtsnode]
# Node address for sgsn0 and ggsn0 is 3 and 4, respectively
set sgsn0 [$ns node]
set ggsn0 [$ns node]
# Node address for node1 is 5
set node1 [$ns node]
$ns duplex-link $node1 $ggsn0 622Mbit 1ms DropTail 1000
$ns duplex-link $ggsn0 $sgsn0 622Mbit 1ms DropTail 1000
$ns duplex-link $sgsn0 $rnc 622Mbit 1ms DropTail 1000
$rnc add-gateway $sgsn0
set rtp_sender [new Agent/RTP]
$ns attach-agent $node1 $rtp_sender
set rtp_receiver [new Agent/RTP]
$ns attach-agent $ue1 $rtp_receiver
# Create a CBR traffic source and attach it to udp0
set cbr0 [new Application/Traffic/CBR]
$cbr0 set packetSize_ 500
$cbr0 set interval_ 0.005
$cbr0 attach-agent $rtp_sender
#creation of DCH channel
$ns node-config -llType UMTS/RLC/AM \
-downlinkBW 64kbs \
-uplinkBW 64kbs \
-downlinkTTI 10ms \
-uplinkTTI 10ms
set dch0 [$ns create-dch $ue1 $rtp_receiver]
#Call the finish procedure after 5 seconds simulation time
$ns at 5.0 "finish"
#Run the simulation
$ns run
