0

代码：

set val(chan)   Channel/WirelessChannel
set val(prop)   Propagation/TwoRayGround
set val(ant)    Antenna/OmniAntenna
set val(ll)     LL
set val(ifq)    Queue/DropTail/PriQueue
set val(ifqlen) 50
set val(netif)  Phy/WirelessPhy
set val(mac)    Mac/802_11
set val(rp)     DSDV
set val(nn)     15
set val(x)      700
set val(y)      500
set val(stop)   130

set ns [new Simulator]
set tracefd       [open trust.tr w]
set windowVsTime2 [open win.tr w]
set namtrace      [open trust.nam w]

$ns trace-all $tracefd
$ns namtrace-all-wireless $namtrace $val(x) $val(y)
set topo       [new Topography]
$topo load_flatgrid $val(x) $val(y)
create-god (1)
#create-god (3)

 $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\
                   -energyModel "EnergyModel" \
-initialEnergy 50

# Energy model
     $ns node-config  -energyModel EnergyModel \
                       -initialEnergy 50 \
                       -txPower 0.75
                       #-rxPower 0.25 \
                       #idlePower 0.0 \
                       #sensePower 0.0
for {set i 0} {$i < $val(nn) } { incr i } {
           set node_($i) [$ns node]
     }
for {set i 0} {$i < $val(nn) } { incr i } {
                 set xx [expr rand()*600]
                 set yy [expr rand()*500]
                 $node_($i) set X_ $xx
                 $node_($i) set Y_ $yy
                 $node_($i) set Z_ 0.0
           }


$ns at 0.0 "$ns trace-annotate \"MOBILE NODE MOVEMENTS\""
set tcp [new Agent/TCP/Newreno]
$tcp set class_ 2
set sink [new Agent/TCPSink]
$ns attach-agent $node_(1) $tcp
$ns attach-agent $node_(3) $sink
$ns connect $tcp $sink
set ftp [new Application/FTP]
$ftp attach-agent $tcp
$ns at 10.0 "$ftp start"


#setting initial position:
for {set i 0} {$i < $val(nn)} { incr i } {
$ns initial_node_pos $node_($i) 30
}


#$ns at $val(stop) "$ns nam-end-wireless $val(stop)"
$ns at $val(stop) "stop"
$ns at 130.01 "puts \"end simulation\" ; $ns halt"
proc stop {} {
   global ns tracefd namtrace
   $ns flush-trace
   close $tracefd
   close $namtrace
exec nam trust.nam &
}

$ns run

此代码运行但移动节点每次都是动态的如何使动态移动节点变为静态？如何使其成为静态移动节点并需要在 ns2 tcl 代码中进行随机监听

4

2 回答 2

1 
for {set i 0} {$i < $val(nn) } { incr i } {
    set xx [expr rand()*600]
    set yy [expr rand()*500]
    $node_($i) set X_ $xx
    $node_($i) set Y_ $yy
    $node_($i) set Z_ 0.0
    $node_($i) random-motion 0  ;# disable random motion
}
于 2014-10-18T19:30:58.140 回答
0 
for {set i 0} {$i < $val(nn) } { incr i } {
    set xx [expr rand()*600]
    set yy [expr rand()*500]
    $node_($i) set X_ $xx
    $node_($i) set Y_ $yy
    $node_($i) set Z_ 0.0
}

此代码设置节点的移动性。您可以评论此代码并查看。然后节点应该是静态的。

于 2011-10-12T17:52:10.673 回答