i am running a ns2 simulation regarding how to minimze the energy of the nodes using DSR protocol
problems :
1- does this code do the function ? and if no how could I implement it.
2- when I run the code this error appears
num_nodes is set 6
Node Configuration Started here...
-channel Channel/WirelessChannel
-adhocRouting DSR
-llType LL
-macType Mac/802_11
-ifqType Queue/DropTail/PriQueue
-ifqLen 5
-antType Antenna/OmniAntenna
-propType Propagation/TwoRayGround
-phyType Phy/WirelessPhy

warning: Please use -channel as shown in tcl/ex/wireless-mitf.tcl
INITIALIZE THE LIST xListHead
end simulation
---------------------
MY CODE:

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) 5 ;# max packet in ifq
set val(nn) 6 ;# number of mobilenodes
set val(rp) DSR ;# routing protocol
set val(x) 750 ;# X dimension of topography
set val(y) 550 ;# Y dimension of topography
set val(stop) 18.0 ;# time of simulation end
## Create a simulator object(nothing but, a scheduler's object)..
set ns [new Simulator]
## Create a trace file and nam file..
set tracefd [open wireless1.tr w]
set namtrace [open wireless1.nam w]
## Trace the nam and trace details from the main simulation..
$ns trace-all $tracefd
$ns namtrace-all-wireless $namtrace $val(x) $val(y)
## set up topography object..
set topo [new Topography]
$topo load_flatgrid $val(x) $val(y)
set god_ [create-god $val(nn)]
## Color Descriptions..
$ns color 1 dodgerblue
$ns color 2 blue
$ns color 3 cyan
$ns color 4 green
$ns color 5 yellow
$ns color 6 black
$ns color 7 magenta
$ns color 8 gold
$ns color 9 red

# Setting The Distance Variables..
# For model 'TwoRayGround'
set dist(5m) 7.69113e-06
set dist(9m) 2.37381e-06
set dist(10m) 1.92278e-06
set dist(11m) 1.58908e-06
set dist(12m) 1.33527e-06
set dist(13m) 1.13774e-06
set dist(14m) 9.81011e-07
set dist(15m) 8.54570e-07
set dist(16m) 7.51087e-07
set dist(20m) 4.80696e-07
set dist(25m) 3.07645e-07
set dist(30m) 2.13643e-07
set dist(35m) 1.56962e-07
set dist(40m) 1.56962e-10
set dist(45m) 1.56962e-11
set dist(50m) 1.20174e-13
#Phy/WirelessPhy set CSThresh_ $dist(50m)
#Phy/WirelessPhy set RXThresh_ $dist(50m)
## Setting node config event with set of inputs..
puts "Node Configuration Started here...\n \
-channel $val(chan) \n \
-adhocRouting $val(rp) \n \
-llType $val(ll) \n \
-macType $val(mac) \n \
-ifqType $val(ifq) \n \
-ifqLen $val(ifqlen) \n \
-antType $val(ant) \n \
-propType $val(prop) \n \
-phyType $val(netif) \n"

$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 ON
# Energy model
$ns node-config -energyModel EnergyModel \
-initialEnergy 20 \
-txPower 0.9 \
-rxPower 0.8 \
-idlePower 0.0 \
-sensePower 0.0175
## Creating node objects..
for {set i 0} {$i < $val(nn) } { incr i } {
set node_($i) [$ns node]
}
for {set i 0} {$i < $val(nn)} {incr i} {
$node_($i) color darkgreen
$ns at 0.0 "$node_($i) color darkgreen"
}
## Provide initial location of mobilenodes..

if {$val(nn) >0} {
for {set i 1} {$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
}
}
## set god distance..
$god_ set-dist 0 1 2
$god_ set-dist 0 2 2
$god_ set-dist 0 3 2
$god_ set-dist 0 4 1
$god_ set-dist 0 5 2
$god_ set-dist 1 2 3
$god_ set-dist 1 3 3

## Define node initial position in nam..
for {set i 0} {$i < $val(nn)} { incr i } {
# 30 defines the node size for nam..
$ns initial_node_pos $node_($i) 30
}
## Telling nodes when the simulation ends..
for {set i 0} {$i < $val(nn) } { incr i } {
$ns at $val(stop) "$node_($i) reset";
}
## Ending nam and the simulation..
$ns at $val(stop) "$ns nam-end-wireless $val(stop)"
$ns at $val(stop) "stop"
$ns at 16.01 "puts "end simulation" " ;# $ns halt

## Stop procedure..
proc stop {} {
global ns tracefd namtrace
$ns flush-trace
close $tracefd
close $namtrace
exec nam wireless1.nam &
exit 0
}
$ns run