Tải bản đầy đủ (.doc) (2 trang)

NS2 wireless network dsdv protocol

Bạn đang xem bản rút gọn của tài liệu. Xem và tải ngay bản đầy đủ của tài liệu tại đây (20 KB, 2 trang )

#=============================
#dungnq06 (): Mo phong danh gia hieu nang mang Wireless
network bang NS2
#Kich ban mang: danh gia giao thuc dsdv. Mo phong voi 3 truong hop so luong nut
khac nhau, su thay doi vi tri nut khac nhau.
#====================================================================
# Define options
# ======================================================================
set opt(chan)
Channel/WirelessChannel
set opt(prop)
Propagation/TwoRayGround
set opt(netif)
Phy/WirelessPhy
set opt(mac)
Mac/802_11
set opt(ifq)
Queue/DropTail/PriQueue
set opt(ll)
LL
set opt(ant)
Antenna/OmniAntenna
set opt(x)
1000
;# X dimension of the topography
set opt(y)
1000
;# Y dimension of the topography
set opt(ifqlen)
50ls
;# max packet in ifq


set opt(seed)
0.0
set opt(tr)
ex01_dsdv_50.tr
;# trace file
set opt(nf)
ex01_dsdv_50.nam
;#nam file
set opt(adhocRouting)
DSDV
set opt(nn)
50
;# how many nodes are simulated
set opt(cp)
"scenarios/scen-50-1000-1000"; #use setdest generation
set opt(sc)
"scenarios/cp_50"; #use cbrgen.tcl generation
set opt(stop)
100.0
;# simulation time
#======================================================================
# Main Program
# ======================================================================
# Initialize Global Variables
# create simulator instance
set ns_
[new Simulator]
# set wireless channel, radio-model and topography objects
set wtopo
[new Topography]

# create trace object for ns and nam
set namtrace [open $opt(nf) w]
$ns_ namtrace-all-wireless $namtrace $opt(x) $opt(y)
set tracefd [open $opt(tr) w]
$ns_ trace-all $tracefd
# use new trace file format
$ns_ use-newtrace
# define topology
$wtopo load_flatgrid $opt(x) $opt(y)
# Create God
set god_ [create-god $opt(nn)]
# define how node should be created
#global node setting
$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) \
-channelType $opt(chan) \


-topoInstance $wtopo \
-agentTrace ON \
-routerTrace ON \
-macTrace OFF
# Create the specified number of nodes [$opt(nn)] and "attach" them
# to the channel.

for {set i 0} {$i < $opt(nn) } {incr i} {
set node_($i) [$ns_ node]
$node_($i) random-motion 0
;# disable random motion
}

# Define node movement model
#puts "Loading connection pattern..."
source $opt(cp)
# Define traffic model
puts "Loading scenario file..."
source $opt(sc)
# Define node initial position in nam
for {set i 0} {$i < $opt(nn)} {incr i} {
# 20 defines the node size in nam, must adjust it according to your scenario
# The function must be called after mobility model is defined
$ns_ initial_node_pos $node_($i) 20

}
# Next add informative headers for the CMUTrace file, just before the line "ns_
run"
puts $tracefd "M 0.0 nn $opt(nn) x $opt(x) y $opt(y) rp $opt(adhocRouting)"
puts $tracefd "M 0.0 sc $opt(sc) cp $opt(cp) seed $opt(seed)"
puts $tracefd "M 0.0 prop $opt(prop) ant $opt(ant)"
# Tell nodes when the simulation ends
for {set i 0} {$i < $opt(nn) } {incr i} {
$ns_ at $opt(stop).000000001 "$node_($i) reset";
}
# tell nam the simulation stop time
#$ns_ at $opt(stop)

"$ns_ nam-end-wireless $opt(stop)"
$ns_ at $opt(stop) "stop"
#$ns_ at 20.01 "puts \"end simulation\" ; $ns_ halt"
puts "Starting Simulation..."
proc stop {} {
global ns_ tracefd namtrace
$ns_ flush-trace
close $tracefd
close $namtrace
exec nam ex01_dsdv_50.nam &
}
$ns_ run



×