erreur dans NS2 pour le réseau de Vanet seul réseau LTE

Question

moi simulation réseau adhoc par la station lte, mon code et l'erreur est comme suit

Mac/802_11Ext set CWMin_   15 
Mac/802_11Ext set CWMax_   1023 
Mac/802_11Ext set SlotTime_   0.000009 
Mac/802_11Ext set SIFS_    0.000016 
Mac/802_11Ext set ShortRetryLimit_ 7 
Mac/802_11Ext set LongRetryLimit_ 4 
Mac/802_11Ext set HeaderDuration_ 0.000020 
Mac/802_11Ext set SymbolDuration_ 0.000004 
Mac/802_11Ext set BasicModulationScheme_ 0 
Mac/802_11Ext set use_802_11a_flag_ true 
Mac/802_11Ext set RTSThreshold_  2000 
Mac/802_11Ext set MAC_DBG   0 
#===================================================================== 
Phy/WirelessPhyExt set CSThresh_   6.30957e-12 
Phy/WirelessPhyExt set Pt_     0.001 
Phy/WirelessPhyExt set freq_    5.18e9 
Phy/WirelessPhyExt set noise_floor_  2.51189e-13 
Phy/WirelessPhyExt set L_     1.0 
Phy/WirelessPhyExt set PowerMonitorThresh_ 2.10319e-12 
Phy/WirelessPhyExt set HeaderDuration_  0.000020 
Phy/WirelessPhyExt set BasicModulationScheme_ 0 
Phy/WirelessPhyExt set PreambleCaptureSwitch_ 1 
Phy/WirelessPhyExt set DataCaptureSwitch_ 0 
Phy/WirelessPhyExt set SINR_PreambleCapture_ 2.5118 
Phy/WirelessPhyExt set SINR_DataCapture_ 100.0 
Phy/WirelessPhyExt set trace_dist_   1e6 
Phy/WirelessPhyExt set PHY_DBG_   0 
Phy/WirelessPhyExt set CPThresh_   0 ;# not used at the moment 
Phy/WirelessPhyExt set RXThresh_   0 ;# not used at the moment 
#===================================================================== 
#configure RF model parameters 
Antenna/OmniAntenna set Gt_ 1.0 
Antenna/OmniAntenna set Gr_ 1.0 
Propagation/Nakagami set use_nakagami_dist_ false 
Propagation/Nakagami set gamma0_ 2.0 
Propagation/Nakagami set gamma1_ 2.0 
Propagation/Nakagami set gamma2_ 2.0 
Propagation/Nakagami set d0_gamma_ 200 
Propagation/Nakagami set d1_gamma_ 500 
Propagation/Nakagami set m0_ 1.0 
Propagation/Nakagami set m1_ 1.0 
Propagation/Nakagami set m2_ 1.0 
Propagation/Nakagami set d0_m_ 80 
Propagation/Nakagami set d1_m_ 200 
set opt(namfile)   out.nam 
set opt(tracefile)  out.tr 
set val(chan) Channel/WirelessChannel; #channel type 
set val(prop) Propagation/Nakagami; #radio-propagation model 
set val(netif) Phy/WirelessPhyExt;   #network interface type 
set val(mac)  Mac/802_11Ext;     #MAC type 
set val(ifq)  Queue/LTEQueue/ULAirQueue; #interface queue type 
set val(ifqlen) 100;       #max nbr of packets in ifq 
set val(ll)  LL;       #link layer type 
set val(ant)  Antenna/OmniAntenna;  #antenna type 
set val(adhocRP) AODV;      #routing protocol 
set val(x)  1903;      #x dimension of the topography 
set val(y)  882;      #y dimension of the topography 
set val(stop) 3607.0;      #simulation time 
set val(mobility) "mobility.tcl" 
set val(start)  1 
set val(stop)  3607.0 
set val(nn)   38 
set val(eNB)   1 
#set val(gw_discovery) reactive;    #gateway discovery method 
#--------------------------- 
#Initialize Global Variables 
#--------------------------- 
#create a simulator object 
set ns_ [new Simulator] 
$ns_ color 0 Brown 
#---------------------------------------- 
#Define The Hierachial Topology Structure 
#---------------------------------------- 
$ns_ node-config -addressType hierarchical 
AddrParams set domain_num_ 2 
lappend clusterNbr 2 2 
AddrParams set cluster_num_ $clusterNbr 
lappend eilastlevel 2 2 [expr $val(nn)/2+1] [expr $val(nn)/2-5] 
AddrParams set nodes_num_ $eilastlevel 
#create trace objects for ns and nam 
$ns_ use-newtrace 
set nstrace [open $opt(tracefile) w] 
$ns_ trace-all $nstrace 
set namtrace [open $opt(namfile) w] 
$ns_ namtrace-all-wireless $namtrace $val(x) $val(y) 
#-------------------------------------------------------- 
#create a topology object and define topology 
#-------------------------------------------------------- 
set topo [new Topography] 
$topo load_flatgrid $val(x) $val(y) 
#-------------------------------------------------------- 
# Create GOD 
    #-------------------------------------------------------- 
    set god [create-god [expr $val(nn)+$val(eNB)]] 
set aGW [$ns_ node 0.0.0] 
    set server [$ns_ node 0.0.1] 
    #Use hierarchical addresses for GWs and MNs 
    set chan1 [new $val(chan)] 
    #configure for gateway 
    $ns_ node-config -adhocRouting $val(adhocRP) \ 
    -llType $val(ll)   \ 
    -macType $val(mac)   \ 
    -ifqType $val(ifq)   \ 
    -ifqLen $val(ifqlen)  \ 
    -antType $val(ant)   \ 
    -propType $val(prop)  \ 
    -phyType $val(netif)  \ 
    -topoInstance $topo   \ 
    -channel $chan1    \ 
    -agentTrace ON    \ 
    -routerTrace ON    \ 
    -macTrace ON    \ 
    -movementTrace ON 
    $ns_ node-config -wiredRouting ON 
    set eNB(0) [$ns_ node 2.0.0] 
    $eNB(0) random-motion 0 
    $eNB(0) set X_ 500.0 
    $eNB(0) set Y_ 100.0 
    $eNB(0) set Z_ 0.0 
    $ns_ at 0.00 "$eNB(0) setdest 500 100 0" 
    $ns_ node-config -wiredRouting OFF 
    for {set i 0} {$i < $val(nn)} {incr i} { 
    set node_($i) [$ns_ node 2.0.[expr $i + 1]] 
    $node_($i) base-station [AddrParams addr2id [ $server node-addr]] 
    $node_($i) random-motion 0 
} 
#20 defines the node size in nam, must adjust it according to your scenario 
#The function must be called after mobility model is defined 
for {set i 0} {$i < $val(nn)} {incr i} {   
$ns_ initial_node_pos $node_($i) 20  
} 
$ns_ simplex-link $eNB(0) $aGW 1000Mb 2ms LTEQueue/ULS1Queue 
$ns_ simplex-link $aGW $eNB(0) 1000Mb 2ms LTEQueue/DLS1Queue 
#The bandwidth between aGW and server is not the bottleneck. 
$ns_ simplex-link $aGW $server 5000Mb 2ms DropTail 
$ns_ simplex-link $server $aGW 5000Mb 2ms LTEQueue/DLQueue 
$ns_ duplex-link-op $server $aGW orient down 
$ns_ duplex-link-op $aGW $eNB(0) orient left-down 
#--------------------- 
#Source Mobility Pattern 
#--------------------- 
source $val(mobility) 
#---------------- 
#Labels & Color 
#---------------- 
$server color blue 
$aGW color green 
$eNB(0) color red 
$ns_ at 0.0 "$server label \"SERVER\"" 
$ns_ at 0.0 "$aGW label \"GTW\"" 
$ns_ at 0.0 "$eNB(0) label eNB_0" 
for {set i 0} {$i < $val(nn)} {incr i} { 
$ns_ at 0.0 "$node_($i) label \"vehicle [expr $i]\"" 
    } 
    #----------------------------------- 
    #Define Node Initial Position In Nam 
    #----------------------------------- 
    #--------------------- #Setup Traffic 
    for {set i 0} {$i < $val(nn)} {incr i} { 
set udp($i) [new Agent/UDP] 
set null($i) [new Agent/Null] 
    $ns_ attach-agent $node_($i) $udp($i) 
    $ns_ attach-agent $server $null($i) 
    $udp($i) set fid_ 0 
    $ns_ connect $udp($i) $null($i) 
    set cbr($i) [new Application/Traffic/CBR] 
    $cbr($i) attach-agent $udp($i) 
     $cbr($i) set packetSize_ 512 
    $cbr($i) set interval_ 0.2 
    $ns_ at $val(start) "$cbr($i) start" 
    $ns_ at $val(stop) "$cbr($i) stop" 
     } 
     #----------------------------------- 
     #Tell Nodes When The Simulation Ends 
      #----------------------------------- 
    for {set i 0} {$i < $val(nn)} {incr i} { 
     $ns_ at $val(stop).0 "$node_($i) reset"; 
    } 
    $ns_ at $val(stop).0 "expr $server reset"; 
    #$ns_ at $val(stop).0 "expr $server reset"; 
    $ns_ at $val(stop).0001 "stop" 
    $ns_ at $val(stop).0002 "puts \"NS EXITING...\" ; $ns_ halt" 
    proc stop {} { 
    global ns_ nstrace namtrace 
    $ns_ flush-trace 
    close $nstrace 
     close $namtrace 
     exec nam out.nam & 
      exit 0 
      } 
     puts "Starting simulation..." 
     $ns_ run 

et son erorr:

madani @ ubuntu: ~/cluster $ ns map.tcl num_nodes est fixé 39 INITIALISER lA LISTE xListHead simulation ... a partir Segmentation fault (core dumped)

Answer 1

Il est possible d'utiliser Queue/LTEQueue/DLAirQueue t ensemble avec {Propagation/Nakagami, Phy/WirelessPhyExt, Mac/802_11Ext + les "paramètres 802.11p" suggérés} dans une simulation. Exemple de fichier LTE: bicfixdownlink.tcl https://drive.google.com/file/d/0B7S255p3kFXNSmd4Q3h3dXp1QWc/view?usp=sharing

source 802.11p-file 

set opt(chan)   Channel/WirelessChannel  ;# channel type 
set opt(prop)   Propagation/Nakagami  ;# radio-propagation model 
set opt(netif)   Phy/WirelessPhyExt   ;# network interface type 
set opt(mac)   Mac/802_11Ext    ;# MAC type 
set opt(ifq)   Queue/LTEQueue/DLAirQueue ;# interface queue type 

... où 802.11p-file est votre code de la question.

Le fichier "bicfixdownlink.tcl" édité fonctionne correctement avec le LTE corrigé ns. L'animation 'nam' est bonne. Et la sortie xgraph est acceptable:

xgraph down0 down1 down2 down3 down4 &

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EDIT: Autre exemple, L-guindy-teatinos40A.tcl + flowmod-teatinos-M40.tcl + mobmod-teatinos-M40A.tcl, où L-guindy- utilise * les paramètres de 802.11p de mobmod-teatinos-M40A.tcl https://drive.google.com/file/d/0B7S255p3kFXNRkVKVFBuNnFLcG8/view?usp=sharing

les fichiers Teatinos SUMO sont de http://neo.lcc.uma.es/staff/jamal/vanet/?q=node/11