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4.tcl
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# This script is created by NSG2 beta1
# <http://wushoupong.googlepages.com/nsg>
if {$argc != 1} {
error "Commad: <ScriptName>.tcl <Number_of_Nodes>"
exit 0
}
#===================================
# Simulation parameters setup
#===================================
set val(chan) Channel/WirelessChannel ;# channel type
set val(prop) Propagation/TwoRayGround ;# radio-propagation model
set val(netif) Phy/WirelessPhy ;# network interface type
set val(mac) Mac/802_11 ;# MAC type
set val(ifq) Queue/DropTail/PriQueue ;# interface queue type
set val(ll) LL ;# link layer type
set val(ant) Antenna/OmniAntenna ;# antenna model
set val(ifqlen) 50 ;# max packet in ifq
set val(nn) [lindex $argv 0] ;# number of mobilenodes
set val(rp) AODV ;# routing protocol
set val(x) 750 ;# X dimension of topography
set val(y) 750 ;# Y dimension of topography
set val(stop) 100.0 ;# time of simulation end
#===================================
# Initialization
#===================================
#Create a ns simulator
set ns [new Simulator]
#Setup topography object
set topo [new Topography]
$topo load_flatgrid $val(x) $val(y)
create-god $val(nn)
#Open the NS trace file
set tracefile [open out.tr w]
$ns trace-all $tracefile
#Open the NAM trace file
set namfile [open out.nam w]
$ns namtrace-all $namfile
$ns namtrace-all-wireless $namfile $val(x) $val(y)
set chan [new $val(chan)];#Create wireless channel
#===================================
# Mobile node parameter setup
#===================================
$ns node-config -adhocRouting $val(rp) \
-llType $val(ll) \
-macType $val(mac) \
-ifqType $val(ifq) \
-ifqLen $val(ifqlen) \
-antType $val(ant) \
-propType $val(prop) \
-phyType $val(netif) \
-channel $chan \
-topoInstance $topo \
-agentTrace ON \
-routerTrace ON \
-macTrace OFF \
-movementTrace OFF
#===================================
# Nodes Definition
#===================================
#add manually
for {set i 0} {$i < $val(nn)} {incr i} {
set n($i) [$ns node]
}
#Randomly placing the nodes
for {set i 0} {$i < $val(nn)} {incr i} {
set XX [expr rand()*750]
set YY [expr rand()*750]
$n($i) set X_ $XX
$n($i) set Y_ $YY
}
$ns at 0.0 "destination"
for {set i 0} {$i < $val(nn)} {incr i} {
$ns initial_node_pos $n($i) 50
}
proc destination {} {
global ns val n
set now [$ns now]
set time 3.0
for {set i 0} {$i < $val(nn)} {incr i} {
set XX [expr rand()*750]
set YY [expr rand()*750]
$ns at [expr $now + $time] "$n($i) setdest $XX $YY 20.0"
}
$ns at [expr $now + $time] "destination"
}
#end
#===================================
# Agents Definition
#===================================
#add manually
#Setup a TCP connection
set tcp0 [new Agent/TCP]
$ns attach-agent $n(0) $tcp0
set sink1 [new Agent/TCPSink]
$ns attach-agent $n(5) $sink1
$ns connect $tcp0 $sink1
$tcp0 set packetSize_ 1500
#end
#===================================
# Applications Definition
#===================================
#Setup a FTP Application over TCP connection
set ftp0 [new Application/FTP]
$ftp0 attach-agent $tcp0
$ns at 1.0 "$ftp0 start"
#===================================
# Termination
#===================================
#Define a 'finish' procedure
proc finish {} {
global ns tracefile namfile
$ns flush-trace
close $tracefile
close $namfile
exec nam out.nam &
exec awk -f 4.awk out.tr &
exit 0
}
for {set i 0} {$i < $val(nn) } { incr i } {
$ns at $val(stop) "$n($i) reset"
}
$ns at $val(stop) "$ns nam-end-wireless $val(stop)"
$ns at $val(stop) "finish"
$ns at $val(stop) "puts \"done\" ; $ns halt"
$ns run