[ns] Help to understanding results (ad hoc network)
Hello,
I need help to understanding the following situation:
An ad hoc network with 60 nodes, where nodes 58 and 59 are static and
opposite, in the extreme of scenario (right and left). 58 establich a TCP
connection with node 59, while the other nodes are moving between them with a
speed near 0m/s (almost static too). Time of simulation is 900s and I used
802.11b, 11Mbps bandwidth and range 160m. My objective is calculate throughput
and goodput for this TCP connection, including other similar scenarios.
My problem is I have obtained ridiculous 9.8 kbps throughput I don't know
what is happening, where I made a mistake when a execute NAM, I almost
can't see any transmission of packets... could someone help me? Thanks!
This is my tcl script:
#
# Scenario: DSR / TCP Vegas / Speed~0m/s
# ==
# 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) 60 ; # number
of mobilenodes
set val(rp) DSR ;# routing
protocol
set val(x) 1200 ;# X
dimension of topography
set val(y)600 ;# Y
dimension of topography
set val(stop) 900 ;# time of
simulation end
set val(start) 90.0;# Warm-Up
set val(sizePacket)512 ;# Size of TCP
packet
# ==
#Configuration for Orinoco 802.11b 11Mbps PC card with -160m range
==
Phy/WirelessPhy set Pt_ 0.031622777
Phy/WirelessPhy set bandwidth_ 11Mb
Mac/802_11 set dataRate_ 11Mb
Mac/802_11 set basicRate_ 1Mb
Phy/WirelessPhy set freq_ 2.472e9
Phy/WirelessPhy set CPThresh_ 10.0
Phy/WirelessPhy set CSThresh_ 5.011872e-12
Phy/WirelessPhy set L_ 1.0
Phy/WirelessPhy set RXThresh_ 1.15126e-10 ;# 160m range
# ==
# Main Program
==
# Initialize Global Variables
#
set ns_ [new Simulator]
set tracefile [open out.tr w]
set namtrace [open out.nam w]
#
$ns_ trace-all $tracefile
$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
#
create-god $val(nn)
#
# configure node
$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 $topo \
-agentTrace ON \
-routerTrace ON \
-macTrace OFF \
-movementTrace OFF
for {set i 0} {$i $val(nn) } {incr i} {
set node_($i) [$ns_ node]
$node_($i) random-motion 0 ;# disable
random motion
}
#
# Definicao das coordenadas dos nos estaticos node_(58) e node_(59)
#
$node_(58) set X_ 0.0
$node_(58) set Y_ 300.0
$node_(58) set Z_ 0.0
#
$node_(59) set X_ 1200.0
$node_(59) set Y_ 300.0
$node_(59) set Z_ 0.0
#
# Determinacao das coordenadas iniciais e geracao de movimentos para os
mobilenodes;
# Movimentos gerados pelo arquivo cenario01.ns_movements do BonnMotion
#
$node_(0) set X_ 645.4216080191918
$node_(0) set Y_ 428.070689547934
$ns_ at 0.0 $node_(0) setdest
[ns] Rv: PLEASE: ... help with compilation
- Mensaje reenviado
De: Douglas Restrepo [EMAIL PROTECTED]
Para: ns ns-users@isi.edu
Enviado: miércoles, 11 de junio, 2008 19:16:08
Asunto: PLEASE: ... help with compilation
Dear all.
I am trying to compile my code but always get this error.
###
num_nodes is set 101
(_o14 cmd line 1)
invoked from within
_o14 cmd addr
invoked from within
catch $self cmd $args ret
invoked from within
if [catch $self cmd $args ret] {
set cls [$self info class]
global errorInfo
set savedInfo $errorInfo
error error when calling class $cls: $args $...
(procedure _o14 line 2)
(SplitObject unknown line 2)
invoked from within
_o14 addr
(eval body line 1)
invoked from within
eval $node addr $args
(default arm line 2)
invoked from within
switch -exact $routingAgent_ {
DSDV {
set ragent [$self create-dsdv-agent $node]
}
DSR {
$self at 0.0 $node start-dsr
}
AODV {
set ragent [$self cre...
(procedure _o3 line 11)
(Simulator create-wireless-node line 11)
invoked from within
_o3 create-wireless-node
(eval body line 1)
invoked from within
eval $self create-wireless-node $args
(procedure _o3 line 23)
(Simulator node line 23)
invoked from within
$ns_ node
(for body line 2)
invoked from within
for {set i 0} {$i $val(nn) } {incr i} {
set node_($i) [$ns_ node]
$node_($i) random-motion 0 ;# disable random motion
}
(file simulacion.tcl line 129)
###
this is the code what i have in the line 129
# Node creation
129: for {set i 0} {$i $val(nn) } {incr i} {
130:set node_($i) [$ns_ node]
131:$node_($i) random-motion 0;# disable random motion
132: }
this always refer to me at the line 129, but i don't know why?
Somebody has idea about this kind of error?
i hope yours can help me.
Thankyou
__
Enviado desde Correo Yahoo! La bandeja de entrada más inteligente.
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