[ns] AODV cannot find a route through intermediate nodes

[Semra YILMAZ]

Dear all,
I have sent some e-mail about the porblem of aodv, but couldn't get any response. Could you please help me for the following lines of script in which the AODV cannot find a route from source to destination? I cannot find what I am misssing.
Any response will sincerely be appreciated.
Semra
 
 

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)             4                          ;# number of mobilenodes

set val(rp)             AODV                       ;# routing protocol

set val(x)        350

set val(y)        350

 

Phy/WirelessPhy set bandwidth_ 1Mb

 

# Initialize Global Variables

set ns_           [new Simulator]

$ns_ use-newtrace

 

set tracefd     [open wireless_4nodes_aodv.tr w]

$ns_ trace-all $tracefd

 

set namtrace [open wireless_4nodes_aodv.nam w]

$ns_ namtrace-all-wireless $namtrace $val(x) $val(y)

 

# set up topography object

set topo [new Topography]

 

$topo load_flatgrid $val(x) $val(y)

 

# Create God

create-god $val(nn)

 

# Create channel #1 and #2

set chan_1_ [new $val(chan)]

 

# Create node(0) "attached" to channel #1

 

# configure node, please note the change below.

$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) \

                  -topoInstance $topo \

                  -agentTrace ON \

                  -routerTrace ON \

                  -macTrace OFF \

                  -movementTrace OFF \

                  -channel $chan_1_ 

 

for {set i 0} {$i < $val(nn)} {incr i} {

      set node_($i) [$ns_ node]

      #$node_($i) add-ifq-send-trace

      $node_($i) random-motion 0

      #$node_($i) start

 

      $ns_ initial_node_pos $node_($i) 20

}

 

#

# Provide initial (X,Y, for now Z=0) co-ordinates for mobilenodes

#

$node_(0) set X_ 49.0

$node_(0) set Y_ 127.0

$node_(0) set Z_ 0.0

 

$node_(1) set X_ 49.0

$node_(1) set Y_ 227.0

$node_(1) set Z_ 0.0

 

$node_(2) set X_ 199.0

$node_(2) set Y_ 177.0

$node_(2) set Z_ 0.0

 

$node_(3) set X_ 299.0

$node_(3) set Y_ 177.0

$node_(3) set Z_ 0.0

 

 

# Now produce some simple node movements

 

$ns_ at 0.09 "$node_(0) setdest 50.0 128.0 10.0"

$ns_ at 0.09 "$node_(1) setdest 50.0 228.0 10.0"

$ns_ at 0.09 "$node_(2) setdest 200.0 178.0 10.0"

$ns_ at 0.09 "$node_(3) setdest 300.0 178.0 10.0"

 

# Setup traffic flow between nodes

 

# TCP connections between node_(0) and node_(3)

set tcp [new Agent/TCP]

$tcp set class_ 1

set sink [new Agent/TCPSink]

$ns_ attach-agent $node_(0) $tcp

$ns_ attach-agent $node_(3) $sink

$ns_ connect $tcp $sink

set ftp [new Application/FTP]

$ftp attach-agent $tcp

$ns_ at 0.5 "$ftp start" 

 

# TCP connections between node_(1) and node_(3)

set tcp2 [new Agent/TCP]

$tcp2 set class_ 2

set sink [new Agent/TCPSink]

$ns_ attach-agent $node_(1) $tcp2

$ns_ attach-agent $node_(3) $sink

$ns_ connect $tcp2 $sink

set ftp2 [new Application/FTP]

$ftp2 attach-agent $tcp2

$ns_ at 0.6 "$ftp2 start" 

 

#

# Tell nodes when the simulation ends

#

for {set i 0} {$i < $val(nn) } {incr i} {

    $ns_ at 4.0 "$node_($i) reset";

}

$ns_ at 3.0 "stop"

$ns_ at 3.01 "puts \"NS EXITING...\" ; $ns_ halt"

proc stop {} {

    global ns_ tracefd

    $ns_ flush-trace

    close $tracefd

}

 

puts "Starting Simulation..."

$ns_ run
######################################################################
Dikkat:

Bu elektronik posta mesaji kisisel ve ozeldir. Eger size 
gonderilmediyse lutfen gondericiyi bilgilendirip mesaji siliniz. 
Firmamiza gelen ve giden mesajlar virus taramasindan gecirilmekte, 
guvenlik nedeni ile kontrol edilerek saklanmaktadir. Mesajdaki 
gorusler ve bakis acisi gondericiye ait olup Aselsan A.S. resmi 
gorusu olmak zorunda degildir.

######################################################################
Attention: 

This e-mail message is privileged and confidential. If you are 
not the intended recipient please delete the message and notify 
the sender. E-mails to and from the company are monitored for 
operational reasons and in accordance with lawful business practices. 
Any views or opinions presented are solely those of the author and 
do not necessarily represent the views of the company.

######################################################################