CN 5 - PERFORMANCE OF GSM ON NS2

5. Implement and study the performance of GSM on NS2/NS3 (Using MAC layer) or equivalent environment.

cn5.tcl - PROGRAM

# Simulation parameters setup
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)     7                          ;# number of mobilenodes
set val(rp)     AODV                       ;# routing protocol
set val(x)      1151                       ;# X dimension of topography
set val(y)      900                        ;# Y dimension of topography
set val(stop)   10.0                       ;# time of simulation end

# Initialization        
#Create a ns simulator
set ns [new Simulator]

#Setup topography object
set topo [new Topography]
$topo load_flatgrid $val(x) $val(y)
create-god $val(nn)

#Open the NS trace file
set tracefile [open out.tr w]
$ns trace-all $tracefile

#Open the NAM trace file
set namfile [open out.nam w]
$ns namtrace-all $namfile
$ns namtrace-all-wireless $namfile $val(x) $val(y)
set chan [new $val(chan)];#Create wireless channel

# Mobile node parameter setup
$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 \
                -topoInstance  $topo \
                -agentTrace    ON \
                -routerTrace   ON \
                -macTrace      ON \
                -movementTrace ON

# Nodes Definition        
#Create 7 nodes
set n0 [$ns node]
$n0 set X_ 338
$n0 set Y_ 305
$n0 set Z_ 0.0
$ns initial_node_pos $n0 20

set n1 [$ns node]
$n1 set X_ 527
$n1 set Y_ 300
$n1 set Z_ 0.0
$ns initial_node_pos $n1 20

set n2 [$ns node]
$n2 set X_ 672
$n2 set Y_ 305
$n2 set Z_ 0.0
$ns initial_node_pos $n2 20

set n3 [$ns node]
$n3 set X_ 867
$n3 set Y_ 304
$n3 set Z_ 0.0
$ns initial_node_pos $n3 20

set n4 [$ns node]
$n4 set X_ 1051
$n4 set Y_ 302
$n4 set Z_ 0.0
$ns initial_node_pos $n4 20

set n5 [$ns node]
$n5 set X_ 292
$n5 set Y_ 438
$n5 set Z_ 0.0
$ns initial_node_pos $n5 20

set n6 [$ns node]
$n6 set X_ 349
$n6 set Y_ 58
$n6 set Z_ 0.0
$ns initial_node_pos $n6 20

# Generate movement          
$ns at 1 " $n6 setdest 890 58 75 "

# Agents Definition        
#Setup a TCP connection
set tcp0 [new Agent/TCP]
$ns attach-agent $n5 $tcp0
set sink1 [new Agent/TCPSink]
$ns attach-agent $n6 $sink1
$ns connect $tcp0 $sink1
$tcp0 set packetSize_ 1500

# Applications Definition        
#Setup a FTP Application over TCP connection
set ftp0 [new Application/FTP]
$ftp0 attach-agent $tcp0
$ns at 1.0 "$ftp0 start"
$ns at 10.0 "$ftp0 stop"

# Termination        
#Define a 'finish' procedure
proc finish {} {
    global ns tracefile namfile
    $ns flush-trace
    close $tracefile
    close $namfile
    exec nam out.nam &
    exit 0
}

for {set i 0} {$i < $val(nn) } { incr i } {
    $ns at $val(stop) "\$n$i reset"
}

$ns at $val(stop) "$ns nam-end-wireless $val(stop)"
$ns at $val(stop) "finish"
$ns at $val(stop) "puts \"done\" ; $ns halt"

$ns run

cn5.awk - PROGRAM

BEGIN {

count=0;

total=0;

}

{ 

event=$1;

if(event=="D") {

count++;

}

}

END {

printf("No of packets dropped : %d\n",count);

}

STEPS :

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OUTPUT :

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