[ns] transmission range
Song Luo
sluons at gmail.com
Tue Jan 15 09:49:14 PST 2008
I am sorry, the script messed up. Send it again.
script:
----------------
# First pair: n0 and n1, placed at the topology bottom, receiving range 50m,
carrier sensing range 100m
# Second pair: n2 and n3, placed at the topology top, receiving range 100m,
carrier sensing range 200m
# The two pairs are place far away from each other that they do not
interfere
# ==========================================================
#Definition
# ==========================================================
set opt(chan) Channel/WirelessChannel ;# channel type
set opt(prop) Propagation/FreeSpace ;# radio-propagation
set opt(ant) Antenna/OmniAntenna ;# Antenna type
set opt(ll) LL ;# Link layer type
set opt(ifq) CMUPriQueue ;# Interface queue
set opt(ifqlen) 100 ;# max packet in ifq
set opt(netif) Phy/WirelessPhy ;# network interface
set opt(mac) Mac/802_11 ;# MAC type
set opt(nn) 2 ;# number of mobilenodes
set opt(rp) DSR ;# routing protocol
set opt(x) 1000
set opt(y) 1000
set opt(seed) 0.0
set opt(stop) 10.0
# ==========================================================
# Initialize Global Variables
# ==========================================================
set ns [new Simulator]
$ns use-newtrace
set trace [open out.tr w]
$ns trace-all $trace
set namtrace [open out.nam w]
$ns namtrace-all-wireless $namtrace $opt(x) $opt(y)
# ==========================================================
# set up topography object
# ==========================================================
set topo [new Topography]
$topo load_flatgrid $opt(x) $opt(y)
# ==========================================================
# Create God --> General Operations Director
# ==========================================================
create-god $opt(nn)
# ==========================================================
# Create channel (koneksi wireless)
# ==========================================================
set chan_1 [new $opt(chan)]
# ==========================================================
# configure and create nodes
# ==========================================================
$ns node-config -addressType expanded \
-adhocRouting $opt(rp) \
-llType $opt(ll) \
-macType $opt(mac) \
-ifqType $opt(ifq) \
-ifqLen $opt(ifqlen) \
-antType $opt(ant) \
-propType $opt(prop) \
-phyType $opt(netif) \
-topoInstance $topo \
-agentTrace ON \
-routerTrace ON \
-macTrace OFF \
-movementTrace OFF \
-channel $chan_1
# =======================================================================
# create node 0，node 1
# =======================================================================
Phy/WirelessPhy set CPThresh_ 10.0
Phy/WirelessPhy set CSThresh_ 2.78831e-9 ;#100m
Phy/WirelessPhy set RXThresh_ 1.11532e-8 ;#50m
Phy/WirelessPhy set bandwidth_ 1Mb
Phy/WirelessPhy set Pt_ 0.2818
Phy/WirelessPhy set freq_ 2.4e+9
Phy/WirelessPhy set L_ 1.0
Antenna/OmniAntenna set X_ 0
Antenna/OmniAntenna set Y_ 0
Antenna/OmniAntenna set Z_ 0.25
Antenna/OmniAntenna set Gt_ 1
Antenna/OmniAntenna set Gr_ 1
set node_(0) [$ns node]
$node_(0) random-motion 0
$node_(0) set X_ 0.0
$node_(0) set Y_ 0.0
$node_(0) set Z_ 0.0
set node_(1) [$ns node]
$node_(1) random-motion 0
$node_(1) set X_ 90.0
$node_(1) set Y_ 0.0
$node_(1) set Z_ 0.0
# ========================================================================
# create node 2, node 3
# ========================================================================
Phy/WirelessPhy set CPThresh_ 10.0
Phy/WirelessPhy set CSThresh_ 6.97078e-10 ;#200m
Phy/WirelessPhy set RXThresh_ 2.78831e-9 ;#100m
Phy/WirelessPhy set bandwidth_ 1Mb
Phy/WirelessPhy set Pt_ 0.2818
Phy/WirelessPhy set freq_ 2.4e+9
Phy/WirelessPhy set L_ 1.0
Antenna/OmniAntenna set X_ 0
Antenna/OmniAntenna set Y_ 0
Antenna/OmniAntenna set Z_ 0.25
Antenna/OmniAntenna set Gt_ 1
Antenna/OmniAntenna set Gr_ 1
set node_(2) [$ns node]
$node_(2) random-motion 0
$node_(2) set X_ 0.0
$node_(2) set Y_ 500.0
$node_(2) set Z_ 0.0
set node_(3) [$ns node]
$node_(3) random-motion 0
$node_(3) set X_ 90.0
$node_(3) set Y_ 500.0
$node_(3) set Z_ 0.0
# UDP connections between from node_(0) to node_(1)
set udp_(0) [new Agent/UDP]
$ns attach-agent $node_(0) $udp_(0)
$udp_(0) set fid_ 1
set null_(0) [new Agent/Null]
$ns attach-agent $node_(1) $null_(0)
set cbr_(0) [new Application/Traffic/CBR]
$cbr_(0) set packetSize_ 512
$cbr_(0) set rate_ 200kb
$cbr_(0) set maxpkts_ 1
$cbr_(0) attach-agent $udp_(0)
$ns connect $udp_(0) $null_(0)
$ns at 1.0 "$cbr_(0) start"
set udp_(1) [new Agent/UDP]
$ns attach-agent $node_(2) $udp_(1)
$udp_(1) set fid_ 2
set null_(1) [new Agent/Null]
$ns attach-agent $node_(3) $null_(1)
set cbr_(1) [new Application/Traffic/CBR]
$cbr_(1) set packetSize_ 512
$cbr_(1) set rate_ 200kb
$cbr_(1) set maxpkts_ 1
$cbr_(1) attach-agent $udp_(1)
$ns connect $udp_(1) $null_(1)
$ns at 1.0 "$cbr_(1) start"
$ns at $opt(stop).0002 "puts \"ns EXITING...\" ; $ns halt"
$ns at $opt(stop).0001 "finish"
proc finish {} {
$ns flush-trace
close $tracefd
close $namtrace
exit 0
}
puts "Starting Simulation..."
$ns run
2008/1/15 Q.R.Iqbal <iqbalqr at aston.ac.uk>:
> Hi there
>
> What you really need to do is to see that if you have two different pair
> of nodes. One pair with the same range e.g. 50m and another pair with the
> range 100m. You set both the pairs apart o they cannot interefere with
> each others transmission. You will see, that the transmission range of the
> node that is defined first will be set for all the nodes.
> So in my case if I have a node 0 with transmission range set to 50 m then
> all the nodes in that script will automatically have 50m transmission
> range. Hence the pair with 100m range will also have 50m range.
> On the other hand if my node 0 has the range of 100m then all the
> remaining nodes will be set to that range, even though the nodes whos
> range is 50m.
>
> So while writing your script you need to set pairs to see clearly how the
> communications takes place. You want to make sure you are not simulating
> bugs for 6 months.
>
> So when you say transmit range of n0 > n1, but ns2 has already assigned n1
> the same range as n0. Try to make two pairs, e.g. four nodes where node 0
> and 1 have same range but lower then the second pair n2 and n3 and each
> pair communicated with each other, you will see that when n0 and n1 are
> communicating, n2 and n3 do not communicate, e.g. ns as implied the same
> transmit range to all the four nodes. Change the transmission ranges e.g
> node 0 and node 1 with higher range and n2 and n3 with lower range, you
> will see all nodes are transmitting.
>
> I think just having two nodes is ver risky to prove what you are saying
> In reality to make individual transmission range to work for each node,
> use need to modify the wirelessphy.cc file
>
> Kind regards
>
> Qasim Raza Iqbal
> PhD Candidate,
> ACNRG Lab N504, Office N505
> Adaptive Communications Networks Research Group,
> School of Engineering And Applied Science
> Aston University
> Birmingham B4 7ET
> United Kingdom
> http://www.ee.aston.ac.uk/research/acrg/index.html
>
>
>
>
> >
> > Hi Muhamad,
> >
> > I tried your script, and understood how you did it. However, I did not
> > observe any data packet delivered from source to host node. Also, your
> > scenario looks a little bit complex for me.
> >
> > So, I designed a simple scenario which has only two nodes, with
> different
> > receiving ranges (n0's range > n1's). I also used DSR to transmit one
> > packet
> > from n0 to n1, and n1 to n0. There was no data packet delivery, because
> > DSR
> > requres a two-way communicaiton for route discovery. But I did observed
> > the
> > consequence of having different receiving range on n0 and n1: the
> > broadcast
> > packets from n1 can reach n0, but those from n0 cannot reach n1.
> >
> > I think this verifies that we can indeed use two different receiving
> > ranges
> > in one simulaiton. The following is my tcl script. You can find more
> > detail
> > on my blog, http://ns-3.blogspot.com/.
> >
> > Thanks.
> >
> > tcl script:
> > -------------------------
> >
> > # n0 and n1 use the same transmission power.
> > # n0 has a receiving range of 250m, n1's receiving range is 160m.
> > # n0 and n1 are 200m away from each other.
> > # n1 cannot receive routing requests broadcast by n0;
> > # however, n0 can receive routing requests broadcast by n1.
> >
> > # ==========================================================
> > #Definition
> > # ==========================================================
> > set opt(chan) Channel/WirelessChannel ;# channel type
> > set opt(prop) Propagation/FreeSpace ;# radio-propagation
> > set opt(ant) Antenna/OmniAntenna ;# Antenna type
> > set opt(ll) LL ;# Link layer type
> > set opt(ifq) CMUPriQueue ;# Interface queue
> > set opt(ifqlen) 100 ;# max packet in ifq
> > set opt(netif) Phy/WirelessPhy ;# network interface
> > set opt(mac) Mac/802_11 ;# MAC type
> > set opt(nn) 2 ;# number of mobilenodes
> > set opt(rp) DSR ;# routing protocol
> > set opt(x) 1000
> > set opt(y) 1000
> > set opt(seed) 0.0
> > set opt(stop) 10.0
> >
> > # ==========================================================
> > # Initialize Global Variables
> > # ==========================================================
> > set ns [new Simulator]
> >
> > $ns use-newtrace
> > set trace [open out.tr w]
> > $ns trace-all $trace
> >
> > set namtrace [open out.nam w]
> > $ns namtrace-all-wireless $namtrace $opt(x) $opt(y)
> >
> > # ==========================================================
> > # set up topography object
> > # ==========================================================
> > set topo [new Topography]
> > $topo load_flatgrid $opt(x) $opt(y)
> >
> > # ==========================================================
> > # Create God --> General Operations Director
> > # ==========================================================
> > create-god $opt(nn)
> >
> > # ==========================================================
> > # Create channel (koneksi wireless)
> > # ==========================================================
> > set chan_1 [new $opt(chan)]
> >
> > # ==========================================================
> > # configure and create nodes
> > # ==========================================================
> > $ns node-config -addressType expanded \
> > -adhocRouting $opt(rp) \
> > -llType $opt(ll) \
> > -macType $opt(mac) \
> > -ifqType $opt(ifq) \
> > -ifqLen $opt(ifqlen) \
> > -antType $opt(ant) \
> > -propType $opt(prop) \
> > -phyType $opt(netif) \
> > -topoInstance $topo \
> > -agentTrace ON \
> > -routerTrace ON \
> > -macTrace OFF \
> > -movementTrace OFF \
> > -channel $chan_1
> >
> >
> > # ====================================================================
> > # create node 0， receiving range 250m, carrier sensing range 500m
> > # ====================================================================
> >
> > Phy/WirelessPhy set CPThresh_ 10.0
> > Phy/WirelessPhy set CSThresh_ 9.21756e-11 ;#550m
> > Phy/WirelessPhy set RXThresh_ 4.4613e-10 ;#250m
> > Phy/WirelessPhy set bandwidth_ 512kb
> > Phy/WirelessPhy set Pt_ 0.2818
> > Phy/WirelessPhy set freq_ 2.4e+9
> > Phy/WirelessPhy set L_ 1.0
> > Antenna/OmniAntenna set X_ 0
> > Antenna/OmniAntenna set Y_ 0
> > Antenna/OmniAntenna set Z_ 0.25
> > Antenna/OmniAntenna set Gt_ 1
> > Antenna/OmniAntenna set Gr_ 1
> > set node_(0) [$ns node]
> > $node_(0) random-motion 0
> >
> > $node_(0) set X_ 0.0
> > $node_(0) set Y_ 0.0
> > $node_(0) set Z_ 0.0
> >
> > # ===================================================================
> > # create node 1, receiving range 160m, carrier sensing range 400m
> > # ===================================================================
> >
> > Phy/WirelessPhy set CPThresh_ 10.0
> > Phy/WirelessPhy set CSThresh_ 1.74269e-10 ;#400m
> > Phy/WirelessPhy set RXThresh_ 1.08918e-9 ;#160m
> > Phy/WirelessPhy set bandwidth_ 512kb
> > Phy/WirelessPhy set Pt_ 0.2818
> > Phy/WirelessPhy set freq_ 2.4e+9
> > Phy/WirelessPhy set L_ 1.0
> > Antenna/OmniAntenna set X_ 0
> > Antenna/OmniAntenna set Y_ 0
> > Antenna/OmniAntenna set Z_ 0.25
> > Antenna/OmniAntenna set Gt_ 1
> > Antenna/OmniAntenna set Gr_ 1
> > set node_(1) [$ns node]
> > $node_(1) random-motion 0
> >
> > $node_(1) set X_ 200.0
> > $node_(1) set Y_ 0.0
> > $node_(1) set Z_ 0.0
> >
> >
> > # UDP connections between from node_(0) to node_(1)
> >
> > set udp_(0) [new Agent/UDP]
> > $ns attach-agent $node_(0) $udp_(0)
> > $udp_(0) set fid_ 1
> > set null_(0) [new Agent/Null]
> > $ns attach-agent $node_(1) $null_(0)
> > set cbr_(0) [new Application/Traffic/CBR]
> > $cbr_(0) set packetSize_ 512
> > $cbr_(0) set rate_ 200kb
> > $cbr_(0) set maxpkts_ 1
> > $cbr_(0) attach-agent $udp_(0)
> > $ns connect $udp_(0) $null_(0)
> > $ns at 1.0 "$cbr_(0) start"
> >
> >
> > set udp_(4) [new Agent/UDP]
> > $ns attach-agent $node_(1) $udp_(4)
> > $udp_(4) set fid_ 2
> > set null_(4) [new Agent/Null]
> > $ns attach-agent $node_(0) $null_(4)
> > set cbr_(4) [new Application/Traffic/CBR]
> > $cbr_(4) set packetSize_ 512
> > $cbr_(4) set rate_ 200kb
> > $cbr_(4) set maxpkts_ 1
> > $cbr_(4) attach-agent $udp_(4)
> > $ns connect $udp_(4) $null_(4)
> > $ns at 5.0 "$cbr_(4) start"
> >
> > $ns at $opt(stop).0002 "puts \"ns EXITING...\" ; $ns halt"
> > $ns at $opt(stop).0001 "finish"
> >
> > proc finish {} {
> >
> > $ns flush-trace
> > close $tracefd
> > close $namtrace
> > exit 0
> > }
> >
> >
> > puts "Starting Simulation..."
> > $ns run
> >
> >
> >
> >
> >
> > On Jan 7, 2008 12:34 PM, muhamad faiz arief budianto <
> faizarief at gmail.com>
> > wrote:
> >
> >> ok i hope it works.
> >> give me ur review
> >>
> >> On 1/7/08, Song Luo <sluons at gmail.com> wrote:
> >> > Hi Muhamad,
> >> >
> >> > I double checked my inbox, I did not find attachment in your email.
> >> Maybe it
> >> > is lost due to some technical issue. Could you please send the script
> >> to
> >> me
> >> > again? I really want to try your approaches.
> >> >
> >> > Thanks.
> >> >
> >> > Song
> >> >
> >> > On Jan 4, 2008 6:09 PM, muhamad faiz arief budianto
> >> <faizarief at gmail.com
> >> >
> >> > wrote:
> >> >
> >> > > i have add my script as an attachment in the previous mail
> >> > >
> >> > >
> >> > > On Jan 5, 2008 4:10 AM, Song Luo <sluons at gmail.com> wrote:
> >> > >
> >> > > > Can you give more detail on how you manually set node
> >> sensitivities
> >> > > > right before creating nodes? Do you write your code in C++ files?
> >> which
> >> > C++
> >> > > > or tcl files did you modify? And what are the statements? Maybe
> an
> >> > example
> >> > > > or the files you are currently using can better illustrates. If
> >> > possible,
> >> > > > can you send me your simulation script and modified source files,
> >> I
> >> am
> >> > very
> >> > > > interested in giving it a shot.
> >> > > >
> >> > > > Thanks.
> >> > > >
> >> > > >
> >> > > > On Jan 4, 2008 10:56 AM, muhamad faiz arief budianto <
> >> > > > faizarief at gmail.com> wrote:
> >> > > >
> >> > > > >
> >> > > > >
> >> > > > > i think, actually we can't set our transmission range on each
> >> node,
> >> > > > > without
> >> > > > > changing or hack the code from ns.
> >> > > > > for now i just set my sensitivity node (RXthre, CST, etc). and
> >> set
> >> it
> >> > > > > manually just right before we create the nodes.
> >> > > > > I already make some simple simulation, for trying some kind of
> >> > > > > wireless
> >> > > > > sensor sims u can say .
> >> > > > > It has 25 node and have 3 kind of node.
> >> > > > > 1 node for the HOST (80 m range)
> >> > > > > 7 node for the MIDDLE (50 m range)
> >> > > > > 17 node for the END (30 m range)
> >> > > > > the data can travel just from the node that already on it's
> >> range.
> >> > > > >
> >> > > > > the scenario is, the field is just like war field, so i have to
> >> send
> >> > > > > data
> >> > > > > packet from node 13 to 0 (END to HOST).
> >> > > > > i disabled the movement. just try it n give me some feedback
> >> about
> >> the
> >> > > > > range
> >> > > > > from each node.
> >> > > > > If you want more clearly about the range transmission, i draw
> >> the
> >> > > > > field and
> >> > > > > node deployment with some design software (CORELDRAW).
> >> > > > > --
> >> > > > > jho
> >> > > > >
> >> > > > >
> >> > > >
> >> > > >
> >> > > > --
> >> > > > Song Luo
> >> > > > Intelligent Automation, Inc.
> >> > >
> >> > >
> >> > >
> >> > >
> >> > > --
> >> > > jho
> >> >
> >> >
> >> >
> >> >
> >> > --
> >> > Song Luo
> >> > Intelligent Automation, Inc.
> >> >
> >>
> >>
> >> --
> >> jho
> >>
> >
> >
> >
> > --
> > Song Luo
> > Intelligent Automation, Inc.
> >
>
>
>
--
Song Luo
Intelligent Automation, Inc.
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