Hi ns2 users.
I try to exchange data in wireless environnement.
However, I'm not able to use routing informations : nodes that are in
antennas range are
able to exchange informations, but when I have the following scheme
(for communication
range, I mean)
A <-> B
B <-> C (and not A <->C), A and C are not able to exchange informations.
Does anyone knows how to exchange these informations ? As I use the
same principle as in
the ping application (which means : using the send() function), I am
supposed to think
that I do it on the right way, but maybe I'm wrong ?
I put here an extract of my tcl file (which the minimum lines ...)
Thanks.
Julien Thomas
# ======================================================================
# Define options
# ======================================================================
set opt(chan) Channel/WirelessChannel ;# channel type
set opt(prop) Propagation/TwoRayGround ;# radio-propagation model
set opt(netif) Phy/WirelessPhy ;# network interface type
set opt(mac) Mac/802_11 ;# 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(nn) 3 ;# number of mobilenodes
set opt(adhocRouting) OLSR ;# routing protocol
set opt(cp) "";
#"~/bin/ns-2/ns-2.31/tcl/mobility/scene/cbr-3-test" ; #
connection pattern file
set opt(sc) "";
#"~/bin/ns-2/ns-2.31/tcl/mobility/scene/scen-3-test" ; # node
movement file.
set opt(x) 400 ;# x coordinate of topology
set opt(y) 600 ;# y coordinate of topology
set opt(seed) 0.0 ;# seed for random
number gen.
set opt(stop) 1000 ;# time to stop
simulation
# ============================================================================
#
# check for random seed
#
if {$opt(seed) > 0} {
puts "Seeding Random number generator with $opt(seed)\n"
ns-random $opt(seed)
}
#
# create simulator instance
#
set ns_ [new Simulator]
#
# define topology
#
$topo load_flatgrid $opt(x) $opt(y)
#
# create God
#
create-god $opt(nn)
set chan_1_ [new $opt(chan)]
#
# configure mobile nodes
#
$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) \
-topoInstance $topo \
-wiredRouting OFF \
-agentTrace ON \
-routerTrace ON \
-macTrace OFF \
-channel $chan_1_
#-channelType $opt(chan) \
#create nodes
#attach OLSRRep agents
for {set i 0} {$i < $opt(nn)} {incr i} {
set node_($i) [$ns_ node]
set olsrRAgent($i) [new Agent/OLSRRep]
set udp_($i) [new Agent/UDP]
$node_($i) random-motion 0 ;# disable random motion
$ns_ attach-agent $node_($i) $olsrRAgent($i)
}
#
# positions
#
$node_(0) set X_ 150.0
$node_(0) set Y_ 200.0
$node_(0) set Z_ 0.0
$node_(1) set X_ 320.0
$node_(1) set Y_ 200.0
$node_(1) set Z_ 0.0
$node_(2) set X_ 500.0
$node_(2) set Y_ 200.0
$node_(2) set Z_ 0.0
for {set i 0} {$i < $opt(nn)} {incr i} {
$ns_ at $opt(stop).0001 "$olsrRAgent($i) finaldisplay"
}
#
# NS-2 management
#
for {set i 0} {$i < $opt(nn) } {incr i} {
$ns_ at $opt(stop).0 "$node_($i) reset";
}
puts "Starting Simulation..."
$ns_ run
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