aodv.tcl

ns2下的仿真环境tcl文件。40节点的随即数据传送

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)             Queue/DropTail/PriQueue    ;# 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)            40                         ;# number of mobilenodes
set val(rp)              AODV                       ; # routing protocol
set val(stop)         200
set val(x)              1000                       ;# X dimension of the topography
set val(y)              1000                      ;# Y dimension of the topography

# $val(netif) set RXThresh_ 1.42681e-08 ;  #100m

set ns_  [new Simulator]

set tracefd [open aodv.tr w]  ;
$ns_ trace-all $tracefd
set namtracefd [open aodv.nam w]
$ns_ namtrace-all-wireless $namtracefd $val(x) $val(y)

proc stop {} {

global ns_ tracefd
#global ns_ namtracefd
$ns_ flush-trace 
close  $tracefd
#close  $namtracefd
#exec nam aodv.nam &
exit 0 

}




set topo [new Topography]

$topo load_flatgrid $val(x) $val(y)      ;#very important

# New API to config node: 
# 1. Create channel (or multiple-channels);
# 2. Specify channel in node-config (instead of channelType);
# 3. Create nodes for simulations.

set chan_1  [new Channel/WirelessChannel]  ;

set god_  [create-god $val(nn)]

# two lines  blew is the same to the line up
#create-god $val(nn)      
#set god_ [God instance]

$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) \
		-channel $chan_1 \
                -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
}

 
source "scen_40_nodes"           ; # use scece created  by  setdest

source "cbr_40"             ;  # use cbr-gen creat cbr flow


for {set i 0} {$i < $val(nn) } {incr i} {

     $ns_ initial_node_pos $node_($i) 2

    $ns_ at $val(stop).0  "$node_($i) reset" ;

}

$ns_ at $val(stop).0  "stop"
$ns_ at $val(stop).01 "puts \" NS EXITING...\" ; $ns_ halt"


puts "Starting  Simulation..."
$ns_ run