Hi all,
I am writing one Tcl script with following simulation settings.
Please tell me if i am wrong somewhere....
1. Nodes move within the area according to the random way-point
mobility model.
2. Velocity of the nodes is uniformly distributed between 2 m/sec
and 38 m/sec.
3. pause time of nodes is 0.
For above three requirements i have run the following command
from
~/ns-allinone-2.28/ns-2.28.indep-utils/cmu-scen-gen/setdest..
./setdest -v(2) -n 20 -m 2.0 -M 38.0 -t 150 -p 0.0 -x 500 -y
500 >scen-20
4. FreeSpace propogation model is used for radio propagation
model.
For this i am using following statement in tcl script...
set val(prop) Propagation/FreeSpace
5. Each node generate CBR traffic at the rate of 1.5kbps
For this i run following command from
~/ns-allinone-2.28/ns-2.28/indep-utils/cmu-scen-gen
ns cbrgen.tcl -type cbr -nn 20 -seed 1.0 -mc 20 -rate 1.5
>cbr-20
6.Packet lenght is set to 1000 bytes.
7.Whole traffic is destined to stationary sink node located at
(250m,250m)
Now for 6th and 7th requirement, i am writing following
statements in TCl script. This is a part of my tcl script...
************
set node_(0) [$ns_ node]
$node_(0) random-motion 0
$node_(0) set X_ 250
$node_(0) set Y_ 250
$node_(0) set Z_ 0
$ns_ initial_node_pos $node_(0) 5
for {set i 0} {$i < $val(nn) } {incr i} {
set node_($i) [$ns_ node]
$node_($i) random-motion 1 ; # disable random motion
}
puts "Loading connection pattern..."
source "cbr-20"
for {set i 0} {$i < $val(nn) } {incr i} {
set tcp_($i) [new Agent/UDP]
#$tcp_($i) set class_ 2
set sink_($i) [new Agent/Null]
$ns_ attach-agent $node_($i) $tcp_($i)
$ns_ attach-agent $node_(0) $sink_($i)
$ns_ connect $tcp_($i) $sink_($i)
set ftp_($i) [new Application/Traffic/CBR]
$ftp_($i) set rate_ 1.6k
$ftp_($i) set packetSize_ 1000
puts "hello1"
$ftp_($i) attach-agent $tcp_($i)
$ns_ at [expr 10.0+0.01*$i] "$ftp_($i) start"
}
# Define traffic model
puts "Loading scenario file..."
source "scen-20"
***********
Please tell me if i am going wrong somewhere... i have doubt in
my 7th requirement... have i done it right??? Am i writing the
statements in order?? loading scenario file should be called here
only??
Please do tell me.. Its very urgent..
I will be highly thankful...
Regards,
Manpreet...
