# ===============
# Define options
# ===============
set val(chan) Channel/WirelessChannel ;# channel type
set val(prop) Propagation/TwoRayGround ;# radio-propagation model
set val(ant) Antenna/OmniAntenna ;# Antenna type
set val(ll) LL ;# Link layer type
set val(ifq) Queue/DropTail/PriQueue ;# Interface queue type
set val(ifqlen) 50 ;# max packet in ifq
set val(netif) Phy/WirelessPhy ;# network interface type
set val(mac) Mac/802_11 ;# MAC type
set val(rp) DSDV ;# ad-hoc routing protocol
set val(nn) 5 ;# number of mobilenodes
# Create simulator
set ns_ [new Simulator]
# Set up trace file
$ns_ use-newtrace
set tracefd [open simple.tr w]
$ns_ trace-all $tracefd
# Create the "general operations director"
# Used internally by MAC layer: must create!
create-god $val(nn)
# Create and configure topography (used for mobile scenarios)
set topo [new Topography]
# 1000x1000m terrain
$topo load_flatgrid 1000 1000
$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 [new $val(chan)] \
-topoInstance $topo \
-agentTrace ON \
-routerTrace ON \
-macTrace OFF \
-movementTrace OFF
for {set i 0} {$i < $val(nn) } {incr i} {
set node_($i) [$ns_ node]
$node_($i) random-motion 0 ;# disable random motion
$node_($i) set X_ 0.0
$node_($i) set Y_ 0.0
$node_($i) set Z_ 0.0
}
$node_(0) set X_ 0.0
$node_(1) set X_ 200.0
$node_(2) set X_ 400.0
$node_(3) set X_ 600.0
$node_(4) set X_ 800.0
# 1500 - 20 byte IP header - 40 byte TCP header = 1440 bytes
Agent/TCP set packetSize_ 1440 ;# This size EXCLUDES the TCP header
set agent [new Agent/TCP]
set app [new Application/FTP]
set sink [new Agent/TCPSink]
$app attach-agent $agent
$ns_ attach-agent $node_(0) $agent
$ns_ attach-agent $node_(4) $sink
$ns_ connect $agent $sink
# 120 seconds of running the simulation time
$ns_ at 0.0 "$app start"
$ns_ at 120.0 "$ns_ halt"
$ns_ run
$ns_ flush-trace
close $tracefd
s -t 0.000000000 -Hs 0 -Hd -2 -Ni 0 -Nx 0.00 -Ny 0.00 -Nz 0.00 -Ne -1.000000 -Nl AGT …
r -t 0.000000000 -Hs 0 -Hd -2 -Ni 0 -Nx 0.00 -Ny 0.00 -Nz 0.00 -Ne -1.000000 -Nl RTR …
ns2stats.py
: Aggregate statisticsthroughputOverTime.py
: Throughput per secondstupidplot.py
: Plot data from PythonTime 0:0 -> 4:0 4:0 -> 0:0 1.0 0.0 0.0 2.0 0.0 0.0 3.0 0.0 0.0 4.0 0.0 0.0 5.0 0.0 0.0 6.0 0.0 0.0 7.0 0.0 0.0 8.0 0.0 0.0 9.0 0.0 0.0 10.0 0.0 0.0
if len( sys.argv ) != 3:
print "example.py <trace file> <output eps file>"
sys.exit( 1 )
input = file( sys.argv[1] )
flows = flowanalysis.parseFlowsFromTrace( input )
input.close()
data = throughputOverTime.throughputOverTime( flows )
stupidplot.gnuplotTable( data, sys.argv[2] )
Includes: