DSDV.zip_dsdv

# A 100-node example for ad-hoc simulation with 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) CMUPriQueue ;# 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) 3 ;# number of mobilenodes set val(rp) DSDV ;# routing protocol set val(x) 500 ;# X dimension of topography set val(y) 400 ;# Y dimension of topography set val(stop) 150 ;# time of simulation end #-------Event scheduler object creation--------# set ns [new Simulator] #Creating trace file and nam file set tracefd [open dsr.tr w] set windowVsTime2 [open win.tr w] set namtrace [open dsr.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) # 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 $topo \ -agentTrace ON \ -routerTrace ON \ -macTrace OFF \ -movementTrace ON for {set i 0} {$i < $val(nn) } { incr i } { set node_($i) [$ns node] } # Provide initial location of mobilenodes $node_(0) set X_ 5.0 $node_(0) set Y_ 5.0 $node_(0) set Z_ 0.0 $node_(1) set X_ 490.0 $node_(1) set Y_ 285.0 $node_(1) set Z_ 0.0 $node_(2) set X_ 150.0 $node_(2) set Y_ 240.0 $node_(2) set Z_ 0.0 # Generation of movements $ns at 10.0 "$node_(0) setdest 250.0 250.0 3.0" $ns at 15.0 "$node_(1) setdest 45.0 285.0 5.0" $ns at 110.0 "$node_(0) setdest 480.0 300.0 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) 30 } # 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 150.01 "puts \"end simulation\" ; $ns halt" proc stop {} { global ns tracefd namtrace $ns flush-trace close $tracefd close $namtrace exec nam dsr.nam & exit 0 } $ns run