[ns] Urgent Help Needed with running AODV on NS-2.34

[kdcorp]

salam,
ok, looking at your configuration file, we can see that you forgot to give
the other nodes positions.

look at this section :


for {set i 0} {$i < $val(nn) } { incr i } {
        set node_($i) [$ns node]
        $node_($i) random-motion 0; # disable random motion
    }
 
# Provide initial location of mobilenodes
#$node_(0) set X_ 10.0
#$node_(0) set Y_ 15.0
 
$node_(0) set Z_ 0.0
 
#$node_(1) set X_ 20.0
#$node_(1) set Y_ 25.0
#$node_(1) set Z_ 0.0
 
#$node_(2) set X_ 200.0
#$node_(2) set Y_ 225.0
#$node_(2) set Z_ 0.0

You created 50 nodes but only 3 of them have there positions. you need to
configure the other's positions. I suggest that you test this for only 10
nodes. "set val(nn) 10" and, if it works, expande to the nuber of nodes
desired.

i hope this will be useful



Anoop thesis wrote:
> 
> 
> Hi Fellow ns2 users,
> 
>  I am pretty new to NS2 and need to learn it for my Thesis.
> 
> I am trying to simulate AODV in ns2.34. It worked fine for a 3 node
> example
> where I could simply give the node positions and work it out.
> 
> However, i am now trying to modify the 50 node example ( wireless.tcl) for
> a
> AODV scenario.
> 
> The following are the changes I have implemented in the 3-node example. I
> may have made some basic mistakes. But please help me out.
> 
> I have already created the scenario using the cmu generator setdest and
> cbrgen.
> 
> 
> Modified Example for 50 node AODV:
> 
> # 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)             50                          ;# number of
> mobilenodes
> set val(rp)             AODV                       ;# routing protocol
> set val(x)              1200                     ;# X dimension of
> topography
> set val(y)              800                      ;# Y dimension of
> topography
> set opt(cp)        "../home/anoop/ns2/ns-
> allinone-2.34/ns-2.34/indep-utils/cmu-scen-gen/b.out"
> set opt(sc)
> "../home/anoop/ns2/ns-allinone-2.34/ns-2.34/indep-utils/cmu-scen-gen/setdest/mov.out"
> set val(stop)           600                        ;# time of simulation
> end
> 
> set ns          [new Simulator]
> set tracefd       [open aodv_50.tr w]
> set windowVsTime2 [open win_aodv.tr w]
> set namtrace      [open simwrls_aodv.nam w]
> 
> $ns trace-all $tracefd
> $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 $val(nn)
> 
> 
> #  Create nn mobilenodes [$val(nn)] and attach them to the channel.
> 
> 
> # configure the nodes
>         $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) \
>              -channelType $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
>     }
> 
> # Provide initial location of mobilenodes
> #$node_(0) set X_ 10.0
> #$node_(0) set Y_ 15.0
> 
> $node_(0) set Z_ 0.0
> 
> #$node_(1) set X_ 20.0
> #$node_(1) set Y_ 25.0
> #$node_(1) set Z_ 0.0
> 
> #$node_(2) set X_ 200.0
> #$node_(2) set Y_ 225.0
> #$node_(2) set Z_ 0.0
> 
> # Generation of movements
> #$ns at 10.0 "$node_(0) setdest 10.0 5.0 3.0"
> #$ns at 15.0 "$node_(1) setdest 45.0 14.0 5.0"
> #$ns at 110.0 "$node_(0) setdest 48.0 5.0 5.0"
> 
> # Set a TCP connection between node_(0) and node_(1)
> #set tcp [new Agent/TCP/Newreno]
> #$tcp set class_ 2
> #set sink [new Agent/TCPSink]
> #$ns attach-agent $node_(0) $tcp
> #$ns attach-agent $node_(1) $sink
> #$ns connect $tcp $sink
> #set ftp [new Application/FTP]
> #$ftp attach-agent $tcp
> #$ns at 10.0 "$ftp start"
> 
> # Printing the window size
> #proc plotWindow {tcpSource file} {
> global ns
> set time 0.01
> set now [$ns now]
> #set cwnd [$tcpSource set cwnd_]
> #puts $file "$now $cwnd"
> #$ns at [expr $now+$time] "plotWindow $tcpSource $file" }
> #$ns at 10.1 "plotWindow $tcp $windowVsTime2"
> 
> # Define node initial position in nam
> for {set i 0} {$i < $val(nn)} { incr i } {
> # 30 defines the node size for nam
> $ns initial_node_pos $node_($i)
> }
> 
> # Telling nodes when the simulation ends
> for {set i 0} {$i < $val(nn) } { incr i } {
>     $ns at $val(stop) "$node_($i) reset";
> }
> 
> # ending nam and the simulation
> $ns at $val(stop) "$ns nam-end-wireless $val(stop)"
> $ns at $val(stop) "stop"
> $ns at 600.01 "puts \"end simulation\" ; $ns halt"
> proc stop {} {
>     global ns tracefd namtrace
>     $ns flush-trace
>     close $tracefd
>     close $namtrace
> }
> 
> $ns run
> 
> 
> 
> Thanks in advance
> 
> Anoop
> 
> 

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