Hi all,
Whenver I try to simulate TORA in ns2, after some time, the execution
hangs/stops at some point and doesnot proceed. There is NO error shown as such,
but program doesnot proceed.
The tcl script is also attached below.
If anyone faced similar problem before or knows the solution, please reply. Its
urgent for my project.
-------------------------------------------------------
num_nodes is set 20
found DATA
16384 data points read
fm0 = 30.000000 fm = 0.000000 fs = 1000.000000
INITIALIZE THE LIST xListHead
Loading connection pattern...
Loading scenario file...
Starting Simulation...
SORTING LISTS ...DONE!
channel.cc:sendUp - Calc highestAntennaZ_ and distCST_
highestAntennaZ_ = 1.5, distCST_ = 550.0
node 0 received `QRY` for itself.
node 0 received `QRY` for itself.
node 0 received `QRY` for itself.
EXECUTION STOPS HERE AND DOESNT PROCEED FURTHER.
--------------------------------------
TORA Tcl Script:
proc getopt {argc argv} {
global argv0 seed rate cp sc
if {$argc < 4} {
puts "\nusage: $argv0 seed rate cbr-connection_file node-movement_file\n"
exit
}
set seed [lindex $argv 0]
set rate [lindex $argv 1]
set cp [lindex $argv 2]
set sc [lindex $argv 3]
#puts "\n $seed $rate $cp $sc \n"
}
# ====================================================================
# Define options
# ====================================================================
set val(chan) Channel/WirelessChannel
set val(prop) Propagation/Ricean ;# radio-propagation model
set val(netif) Phy/WirelessPhy
set val(mac) Mac/802_11
set val(ifq) Queue/DropTail/PriQueue ;# for aodv
set val(ll) LL
set val(ant) Antenna/OmniAntenna
set val(x) 500 ;# X dimension of the topography
set val(y) 500 ;# Y dimension of the topography
set val(ifqlen) 50 ;# max packet in ifq
set val(adhocRouting) TORA
set val(nn) 20 ;# how many nodes are simulated
set val(cn) 20 ;# how many connections
set val(stop) 200 ;# simulation time
# unity gain, omni-directional antennas
# set up the antennas to be centered in the node and 1.5 meters above it
Antenna/OmniAntenna set X_ 0
Antenna/OmniAntenna set Y_ 0
Antenna/OmniAntenna set Z_ 1.5
Antenna/OmniAntenna set Gt_ 1.0
Antenna/OmniAntenna set Gr_ 1.0
# Initialize the SharedMedia interface with parameters to make
# It works like the 914MHz Lucent WaveLAN DSSS radio interface
Phy/WirelessPhy set CPThresh_ 10.0
Phy/WirelessPhy set CSThresh_ 1.559e-11
Phy/WirelessPhy set RXThresh_ 3.652e-10
Phy/WirelessPhy set Rb_ 2*1e6
Phy/WirelessPhy set Pt_ 0.2818
Phy/WirelessPhy set freq_ 914e+6
Phy/WirelessPhy set L_ 1.0
# ====================================================================
# Main Program
# ====================================================================
#
# Initialize Global Variables
#
getopt $argc $argv
# create simulator instance
set ns_ [new Simulator]
$ns_ use-newtrace;
# setup topography object
set topo [new Topography]
# create trace object for ns and nam
set tracefd [open out${sc}_nn${val(nn)}_mc${val(cn)}.tr w]
set namtrace [open out${sc}_nn${val(nn)}_mc${val(cn)}.nam w]
$ns_ trace-all $tracefd
$ns_ namtrace-all-wireless $namtrace $val(x) $val(y)
# define topology
$topo load_flatgrid $val(x) $val(y)
# Create God
set god_ [create-god $val(nn)]
# Create channel #1
set chan_1_ [new $val(chan)]
#global node setting
# Create node "attached" to channel #1
$ns_ node-config -adhocRouting $val(adhocRouting) \
-llType $val(ll) \
-macType $val(mac) \
-ifqType $val(ifq) \
-ifqLen $val(ifqlen) \
-antType $val(ant) \
-propType $val(prop) \
-phyType $val(netif) \
-channel $chan_1_ \
-topoInstance $topo \
-agentTrace ON \
-dsrTrace OFF \
-routerTrace OFF \
-macTrace ON \
-movementTrace OFF \
-toraDebug ON
###############################################
# Set Ricean and Rayleigh fading propagation parameter
## ############################################
set prop_inst [$ns_ set propInstance_]
$prop_inst MaxVelocity 2.5;
$prop_inst RiceanK 0;
$prop_inst LoadRiceFile "rice_table.txt";
#
# Create the specified number of nodes [$val(nn)] and "attach" them
# to the channel.
for {set i 0} {$i < $val(nn) } {incr i} {
set node_($i) [$ns_ node]
$node_($i) random-motion 0 ;# disable random motion
}
#
# Define traffic model
#
source $cp #taken as argument
if { $sc != 0} {
source $sc
#taken as argument
}
# Define node initial position in nam
for {set i 0} {$i < $val(nn)} {incr i} {
$ns_ initial_node_pos $node_($i) 20
}
#
# Tell nodes when the simulation ends
#
for {set i 0} {$i < $val(nn) } {incr i} {
$ns_ at $val(stop).0 "$node_($i) reset";
}
$ns_ at $val(stop).0001 "$ns_ nam-end-wireless $val(stop).0001"
puts $tracefd "M 0.0 nn=$val(nn) x=$val(x) y=$val(y) rp=$val(adhocRouting)"
puts $tracefd "M 0.0 sc=$sc cp=$cp seed=$seed"
puts $tracefd "M 0.0 prop=$val(prop) ant=$val(ant)"
#Define a 'finish' procedure
proc finish {} {
global ns_ tracefd namtrace val(stop)
$ns_ flush-trace
close $tracefd
close $namtrace
}
$ns_ at $val(stop).0002 "finish"
$ns_ at $val(stop).0004 "$ns_ halt"
puts "Starting Simulation..."
$ns_ run
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