wimax+sctp+multihome.tcl

NS2 simulation of wimax

# Test for 802.11 nodes.
# @author rouil
# @date 10/25/2005
# Test file for wimax
# Scenario: Communication between MN and Sink Node with MN attached to BS.
#           Using grep ^r out.res | grep MAC | grep -c cbr you can see the number of
#           mac packets received at the destination (100 packets). 
#           Using grep ^s out.res | grep MAC | grep -c cbr you can see the number of 
#           mac packets sent (200 packets). By default the scheduler uses BPSK for 
#           modulation, therefore the packets are being fragmented. 
#           Using higher modulation (16QAM for exemple), the number of packets sent and
#           received are the same (=100).
#
# Topology scenario:
#
#
#	        |-----|          
#	        | MN0 |                 ; 1.0.1 
#	        |-----|        
#
#
#		  (^)
#		   |
#	    |--------------|
#           | Base Station | 		; 1.0.0
#           |--------------|
#	    	   |
#	    	   |
#	     |-----------|
#            | Sink node | 		; 0.0.0
#            |-----------|
#

#check input parameters
if {$argc != 0} {
	puts ""
	puts "Wrong Number of Arguments! No arguments in this topology"
	puts ""
	exit (1)
}

# set global variables
set nb_mn 1				;# max number of mobile node
set output_dir .
set gap_size 1 ;#compute gap size between packets
puts "gap size=$gap_size"
set traffic_start 5
set traffic_stop  55
set simulation_stop 60

#define debug values
Mac/802_16 set debug_ 1
Mac/802_16 set rtg_ 20
Mac/802_16 set ttg_ 20
Mac/802_16 set frame_duration_ 0.008
Phy/WirelessPhy/OFDM set g_ 0.25

#define coverage area for base station: 20m coverage 
Phy/WirelessPhy set Pt_ 0.025
#Phy/WirelessPhy set freq_ 2412e+6
#Phy/WirelessPhy set RXThresh_ 2.90781e-09
Phy/WirelessPhy set RXThresh_ 2.025e-12 ;#500m radius
Phy/WirelessPhy set CSThresh_ [expr 0.9*[Phy/WirelessPhy set RXThresh_]]

# Parameter for wireless nodes
set opt(chan)           Channel/WirelessChannel    ;# channel type
set opt(prop)           Propagation/TwoRayGround   ;# radio-propagation model
set opt(netif)          Phy/WirelessPhy/OFDM       ;# network interface type
set opt(mac)            Mac/802_16                 ;# MAC type
set opt(ifq)            Queue/DropTail/PriQueue    ;# interface queue type
set opt(ll)             LL                         ;# link layer type
set opt(ant)            Antenna/OmniAntenna        ;# antenna model
set opt(ifqlen)         50              	   ;# max packet in ifq
set opt(adhocRouting)   NOAH                       ;# routing protocol

set opt(x)		1100			   ;# X dimension of the topography
set opt(y)		1100			   ;# Y dimension of the topography

Mac/802_11 set basicRate_ 11Mb
Mac/802_11 set dataRate_ 11Mb
Mac/802_11 set bandwidth_ 11Mb

#defines function for flushing and closing files
proc finish {} {
        global ns tf output_dir nb_mn namtrace
        $ns flush-trace
        close $tf
 	close $namtrace
        exec nam out.nam &
	exit 0
}

#create the simulator
set ns [new Simulator]
$ns use-newtrace

#create the topography
set topo [new Topography]
$topo load_flatgrid $opt(x) $opt(y)
#puts "Topology created"

#open file for trace
set tf [open $output_dir/out.res w]
$ns trace-all $tf
set namtrace [open $output_dir/out.nam w]
$ns namtrace-all $namtrace 

#puts "Output file configured"

# set up for hierarchical routing (needed for routing over a basestation)
#puts "start hierarchical addressing"
$ns node-config -addressType hierarchical
AddrParams set domain_num_ 2          			;# domain number
lappend cluster_num 1 1            			;# cluster number for each domain 
AddrParams set cluster_num_ $cluster_num
lappend eilastlevel 3 [expr ($nb_mn+1)] 		;# number of nodes for each cluster (1 for sink and one for mobile nodes + base station
AddrParams set nodes_num_ $eilastlevel
puts "Configuration of hierarchical addressing done"


# Create God
create-god [expr ($nb_mn + 4)]				;# nb_mn + 2 (base station and sink node)
#puts "God node created"

#creates the sink node in first addressing space.
set sinkNode [$ns node 0.0.0]
#provide some co-ord (fixed) to base station node
$sinkNode set X_ 50.0
$sinkNode set Y_ 50.0
$sinkNode set Z_ 0.0
#puts "sink node created"
set sinkNode_if0 [$ns node 0.0.1]
set sinkNode_if1 [$ns node 0.0.2]

$ns multihome-add-interface $sinkNode  $sinkNode_if0
$ns multihome-add-interface $sinkNode $sinkNode_if1 

#creates the Access Point (Base station)
$ns node-config -adhocRouting $opt(adhocRouting) \
                 -llType $opt(ll) \
                 -macType $opt(mac) \
                 -ifqType $opt(ifq) \
                 -ifqLen $opt(ifqlen) \
                 -antType $opt(ant) \
                 -propType $opt(prop)    \
                 -phyType $opt(netif) \
                 -channel [new $opt(chan)] \
                 -topoInstance $topo \
                 -wiredRouting ON \
                 -agentTrace ON \
                 -routerTrace ON \
                 -macTrace ON  \
                 -movementTrace OFF
#puts "Configuration of base station"

set bstation [$ns node 1.0.0]  
$bstation random-motion 0
#puts "Base-Station node created"
#provide some co-ord (fixed) to base station node
$bstation set X_ 550.0
$bstation set Y_ 550.0
$bstation set Z_ 0.0
set clas [new SDUClassifier/Dest]
[$bstation set mac_(0)] add-classifier $clas
#set the scheduler for the node. Must be changed to -shed [new $opt(sched)]
set bs_sched [new WimaxScheduler/BS]
[$bstation set mac_(0)] set-scheduler $bs_sched
[$bstation set mac_(0)] set-channel 0

# creation of the mobile nodes
$ns node-config -wiredRouting OFF \
                -macTrace ON  				;# Mobile nodes cannot do routing.

	set wl_node [$ns node 1.0.1] 	;# create the node with given @.	
	$wl_node random-motion 0			;# disable random motion
	$wl_node base-station [AddrParams addr2id [$bstation node-addr]] ;#attach mn to basestation
	#compute position of the node
        $wl_node set X_ [expr 340.0]
        #$ns at 4.0 "$wl_node set X_ 80"
        #$ns at 6.0 "$wl_node set X_ 50"
	$wl_node set Y_ 550.0
	$wl_node set Z_ 0.0
        $ns at 0 "$wl_node setdest 1060.0 550.0 1.0"
       			;# debug info

	set clas [new SDUClassifier/Dest]
        [$wl_node set mac_(0)] add-classifier $clas
        #set the scheduler for the node. Must be changed to -shed [new $opt(sched)]
        set ss_sched [new WimaxScheduler/SS]
        [$wl_node set mac_(0)] set-scheduler $ss_sched
        [$wl_node set mac_(0)] set-channel 0

Trace set show_sctphdr_ 1
        #create source traffic
# create the link between sink node and base station
$ns duplex-link $sinkNode_if0  $bstation 100Mb 1ms DropTail

set sctp0 [new Agent/SCTP]
$ns multihome-attach-agent $sinkNode $sctp0
$sctp0 set fid_ 0 
$sctp0 set debugMask_ -1
$sctp0 set debugFileIndex_ 0
$sctp0 set mtu_ 1500
$sctp0 set dataChunkSize_ 512
$sctp0 set numOutStreams_ 1
$sctp0 set oneHeartbeatTimer_ 0   # turns off heartbeating


set sctp1 [new Agent/SCTP]
$ns attach-agent $wl_node $sctp1
$sctp1 set debugMask_ -1
$sctp1 set debugFileIndex_ 1
$sctp1 set mtu_ 1500
$sctp1 set initialRwnd_ 131072 
$sctp1 set useDelayedSacks_ 0

$ns color 0 Red
$ns color 1 Blue

$ns connect $sctp0 $sctp1

set ftp0 [new Application/FTP]
$ftp0 attach-agent $sctp0
# force the source interface
$ns at 5.0 "$sctp0 force-source  $sinkNode_if0"



# Traffic scenario: here the all start talking at the same time


$ns at $traffic_start "$ftp0 start"
$ns at $traffic_stop  "$ftp0 stop"

$ns at $simulation_stop "finish"
#$ns at $simulation_stop "$ns halt"
# Run the simulation
puts "Running simulation for $nb_mn mobile nodes..."
$ns run
puts "Simulation done."