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Re: [ns] MANET Class Project ideas:Correction
John:
The line parsing routine was in the wrong place in the last script. It would always run the defaults ere it is corrected.
#
# simple-manet.tcl
# A simple example for wireless simulation
# usage: ns simple_manet.tcl manet <routing protocol name>
# - Joe Macker
# ======================================================================
# Define options
# ======================================================================
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) 10 ;# number of mobilenodes
set val(rp) AODV ;# routing protocol
set val(x) 500
set val(y) 500
proc usage {} {
puts {cbr_mobile: Usage> ns simple_manet.tcl [manet <DSR,AODV,TORA,OLSR,NRLOLSR,others> }
puts {PARAMETERS NEED NOT BE SPECIFIED... DEFAULTS WILL BE USED}
exit
}
set state flag
foreach arg $argv {
switch -- $state {
flag {
switch -- $arg {
manet {set state manet}
help {usage}
default {error "unknown flag $arg"}
}
}
manet {set state flag; set val(rp) $arg}
}
}
puts "this is a basic manet test program"
# =====================================================================
# Main Program
# ======================================================================
#
# Initialize Global Variables
#
set ns_ [new Simulator]
set tracefd [open simple_manet.tr w]
$ns_ trace-all $tracefd
set namtrace [open simple_manet.nam w]
$ns_ namtrace-all-wireless $namtrace $val(x) $val(y)
# set up topography object
set topo [new Topography]
$topo load_flatgrid 500 500
#
# Create God
#
create-god $val(nn)
#
# Create the specified number of mobilenodes [$val(nn)] and "attach" them
# to the channel.
# Here two nodes are created : node(0) and node(1)
# configure node
set chan_1_ [new $val(chan)]
$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_1_ \
-topoInstance $topo \
-agentTrace ON \
-routerTrace ON \
-macTrace OFF \
-movementTrace ON
for {set i 0} {$i < $val(nn) } {incr i} {
set node_($i) [$ns_ node]
$node_($i) random-motion 1
;# enable random motion
}
for {set i 0} {$i < $val(nn) } {incr i} {
$ns_ initial_node_pos $node_($i) 25 ;# set size of nodes
}
#
# Provide initial (X,Y, for now Z=0) co-ordinates for mobilenodes
#
$node_(0) set X_ 50.0
$node_(0) set Y_ 90.0
$node_(1) set X_ 450.0
$node_(1) set Y_ 410.0
for {set i 2} {$i < $val(nn) } {incr i} {
$node_($i) set X_ 250.0
$node_($i) set Y_ 250.0
$node_($i) set Z_ 0.0
}
#
# Now produce some simple node movements
# Node_(1) starts to move towards node_(0)
#
$ns_ at 0.1 "$node_(1) setdest 10.0 460.0 5.0"
$ns_ at 0.1 "$node_(0) setdest 420.0 100.0 5.0"
$ns_ at 0.1 "$node_(2) setdest 10.0 260.0 10.0"
$ns_ at 0.1 "$node_(3) setdest 50.0 280.0 5.0"
$ns_ at 0.1 "$node_(4) setdest 180.0 230.0 20.0"
$ns_ at 0.1 "$node_(5) setdest 0.1 200.0 10.0"
$ns_ at 0.1 "$node_(6) setdest 230.0 250.0 3.0"
$ns_ at 0.1 "$node_(7) setdest 420.0 250.0 5.0"
$ns_ at 0.1 "$node_(8) setdest 350.0 290.0 20.0"
$ns_ at 0.1 "$node_(9) setdest 490.0 189.0 5.0"
# Node_(1) then starts to move away from node_(0)
$ns_ at 100.0 "$node_(0) setdest 2.0 450.0 25.0"
$ns_ at 100.0 "$node_(1) setdest 490.0 40.0 15.0"
#Set cbr agent
set udp1 [new Agent/UDP]
$ns_ attach-agent $node_(1) $udp1
$udp1 set class_ 0
#$udp1 set fid_ 2
set cbr1 [new Application/Traffic/CBR]
$cbr1 attach-agent $udp1
$cbr1 set packetSize_ 1000
$cbr1 set interval_ 0.02
set null1 [new Agent/Null]
$ns_ attach-agent $node_(0) $null1
$ns_ connect $udp1 $null1
$ns_ at 2.0 "$cbr1 start"
$ns_ at 160.0 "stop"
$ns_ at 160.01 "puts \"NS EXITING...\" ; $ns_ halt"
proc stop {} {
global ns_ tracefd namtrace
$ns_ flush-trace
close $tracefd
close $namtrace
}
puts "Starting Simulation..."
$ns_ run
>What I would really like to hear is feedback from anyone who has given
>similar assignments: what worked, what didn't. I'd be happy to post a
>summary of reactions from students after I assign the project and follow
>it through to its (happy) conclusion.
>
>Best regards,
>John
>
>
>--
>John WELLS
>Virginia Tech Networking and Visualization Lab
>PGP Public key: http://www.ee.vt.edu/~wells/pgpkey.txt