try the following modified code of u r program...it will work. b4 that you
just verfiy whether u have set environment varible in .bashrc or not. all
the beast.
#############
#####################################################
#This is a sample Tcl script file for using with TeNs
#####################################################
set val(chan) Channel/WirelessChannel ;# channel type
set val(prop) Propagation/Shadowing ;# 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/DirAntenna ;# antenna model
set val(ifqlen) 50 ;# max packet in ifq
set val(nn) 4 ;# number of mobilenodes
#One can use AODV also , all other wireless protocols currently don't work
set val(rp) AODV ;# routing protocol
set val(ni) 1
#This type of modulation is a new addition
set opt(mod) Modulation/BPSK
# ======================================================================
# Main Program
# ======================================================================
#
# Initialize Global Variables
#
set ns_ [new Simulator]
set tracefd [open simple.tr w]
#set par [open param.tr w]
$ns_ trace-all $tracefd
$ns_ use-newtrace
# set up topography object
set topo [new Topography]
$topo load_flatgrid 10000 10000
#$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
$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 ON \
-numif $val(ni) \
create-god 6
proc create_node { x y z } {
global ns_
#Mac/802_11 MAC_RTSThreshold 2000
#Mac/802_11 MAC_FragmentationThreshold 2500
#Mac/802_11 DSSS_AirPropagationTime 0.000003
Mac/802_11 set dataRate_ 11mb
Mac/802_11 set basicRate_ 1mb
# This statement can be used to enable BPSK Modulation scheme
# If one does not want to use this then it can be set to zero.
# By default it is set to zero.
Phy/WirelessPhy set modulationscheme_ 1
set newnode [$ns_ node]
$newnode random-motion 0
$newnode set X_ $x
$newnode set Y_ $y
$newnode set Z_ $z
return $newnode
}
proc create_cbr_connection { from to startTime interval packetSize } {
global ns_
set udp0 [new Agent/UDP]
set src [new Application/Traffic/CBR]
$udp0 set packetSize_ $packetSize
$src set packetSize_ $packetSize
$src set interval_ $interval
set sink [new Agent/Null]
$ns_ attach-agent $from $udp0
$src attach-agent $udp0
$ns_ attach-agent $to $sink
$ns_ connect $udp0 $sink
$ns_ at $startTime "$src start"
return $udp0
}
proc create_tcp_connection { from to startTime } {
#global ns_ par
set tcp [new Agent/TCP]
$tcp set packetSize_ 1500
$tcp set class_ 2
set sink [new Agent/TCPSink]
$ns_ attach-agent $from $tcp
$ns_ attach-agent $to $sink
$ns_ connect $tcp $sink
set ftp [new Application/FTP]
$ftp set packetSize_ 1500
$ftp attach-agent $tcp
$ns_ at $startTime "$ftp start"
$tcp attach $par
$tcp trace cwnd_
$tcp trace maxseq_
$tcp trace rtt_
$tcp trace dupacks_
$tcp trace ack_
$tcp trace ndatabytes_
$tcp trace ndatapack_
$tcp trace nrexmit_
$tcp trace nrexmitpack_
return $tcp
}
$ns_ node-config -numif 1
set node_(0) [create_node 10 10 0]
[$node_(0) set netif_(0)] set channel_number_ 1
[$node_(0) set netif_(0)] set Pt_ 0.1
set a [new Antenna/DirAntenna]
$a setType 1
$a setAngle 90
#$a setWidth 10
[$node_(0) set netif_(0)] dir-antenna $a
#This is to set the number of interfaces in one node, in this case the no.
of
#interfaces in node is set to 1
$ns_ node-config -numif 2
#This is the way a node is created (situated at 10,60,0)
set node_(1) [create_node 10 60 0]
#This is the method of setting the power at which a particular network
interface of a node
# will transmit at. For eg. in this case the interface no.0 of node no 1
will work at 0.005W
[$node_(1) set netif_(0)] set Pt_ 0.1
#This is the method of setting the channel at which a particular network
interface of a node
#will work at. For eg. in this case the interface no.0 of node no 1 will
work at channel 1
[$node_(1) set netif_(0)] set channel_number_ 1
#This is the method of setting the power at which a particular network
interface of a
#node will transmit at. For eg. in this case the interface no.1 of node no 1
will work at 0.005W
[$node_(1) set netif_(1)] set Pt_ 0.1
#This is the method of setting the channel at which a particular network
interface of
#a node will work at. For eg. in this case the interface no.1 of node no 1
will work at channel 1
[$node_(1) set netif_(1)] set channel_number_ 6
#This is the way a new directional antenna is created
set a [new Antenna/DirAntenna]
#The type can be set to zero if you want to use directional antennae in the
following form :
#A packet is received if the path between the sender and receiver fall in
the
#cone(parallelogram) formed by the directional antennae of the sender and
receiver
$a setType 1
#This sets the start angle of the directional antenna
$a setAngle 265
#This sets the angle of cone of the directional antenna
#$a setWidth 10
#Thus the above antenna will cover all area between angle 265 to
275(anticlockwise +x axis)
#with the node as the origin.
#Note: ALL ANGLES ARE IN DEGREES
#Note: Directional Antennae specification can also be given by setting the
type as an integer
#ranging from 1-8. In that case there is no need to give the setWidth
command. One only needs to do the following:
#e.g.: $a setType 7
# $a setAngle 30 #This 30 gives the angle in degrees(anticlockwise from
+ve
x axis) of the direction of maximum gain, with the node at the center.
#This attaches the node to the directional antenna to the interface 0 of
node1
[$node_(1) set netif_(0)] dir-antenna $a
set a [new Antenna/DirAntenna]
$a setType 1
$a setAngle 0
$a setWidth 10
#This attaches the node to the directional antenna to the interface 1 of
node1
[$node_(1) set netif_(1)] dir-antenna $a
$ns_ node-config -numif 2
set node_(2) [create_node 60 60 0]
[$node_(2) set netif_(0)] set Pt_ 0.1
[$node_(2) set netif_(0)] set channel_number_ 6
[$node_(2) set netif_(1)] set Pt_ 0.1
[$node_(2) set netif_(1)] set channel_number_ 11
set a [new Antenna/DirAntenna]
$a setType 1
$a setAngle 180
$a setWidth 10
[$node_(2) set netif_(0)] dir-antenna $a
set a [new Antenna/DirAntenna]
$a setType 1
$a setAngle 90
#$a setWidth 10
[$node_(2) set netif_(1)] dir-antenna $a
$ns_ node-config -numif 1
set node_(3) [create_node 60 6100 0]
[$node_(3) set netif_(0)] set Pt_ 0.1
[$node_(3) set netif_(0)] set channel_number_ 11
set a [new Antenna/DirAntenna]
$a setType 1
$a setAngle 270
#$a setWidth 10
[$node_(3) set netif_(0)] dir-antenna $a
#These following set of commands manually makes a routing table for
"wlstatic"
#the syntax is as follows:
#[$node_(0) set ragent_] addstaticroute <number of hops> <next hop>
<destination node> <interface to use>
#[$node_(0) set ragent_] addstaticroute 1 1 1 0
#[$node_(0) set ragent_] addstaticroute 2 1 2 0
#[$node_(0) set ragent_] addstaticroute 3 1 3 0
#[$node_(1) set ragent_] addstaticroute 1 0 0 0
#[$node_(1) set ragent_] addstaticroute 1 2 2 1
#[$node_(1) set ragent_] addstaticroute 2 2 3 1
#[$node_(2) set ragent_] addstaticroute 2 1 0 0
#[$node_(2) set ragent_] addstaticroute 1 1 1 0
#[$node_(2) set ragent_] addstaticroute 1 3 3 1
#[$node_(3) set ragent_] addstaticroute 3 2 0 0
#[$node_(3) set ragent_] addstaticroute 2 2 1 0
#[$node_(3) set ragent_] addstaticroute 1 2 2 0
set tcp0 [create_cbr_connection $node_(0) $node_(3) 1.0 0.005 1500]
#
# Tell nodes when the simulation ends
#
for {set i 0} {$i < $val(nn) } {incr i} {
$ns_ at 110.0 "$node_($i) reset";
}
$ns_ at 110.0 "stop"
$ns_ at 110.01 "puts \"NS EXITING...\" ; $ns_ halt"
proc stop {} {
global ns_ tracefd par
$ns_ flush-trace
close $tracefd
#close $par
}
puts "Starting Simulation..."
$ns_ run
--
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