hi
i am a master student and i am using ns2 as my simulation tool, my question
is how to change the transmission range of a wireless node from the default
250m to 4om, in the manual its written that i a have to change the
receiving threshold in threshold.cc and specify the propagation model as
for your answer,
http://mailman.isi.edu/pipermail/ns-users/2005-March/048467.html
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*From:* M Falahati md.falah...@gmail.com
*To:* ns-users@ISI.EDU
*Sent:* Wednesday, 12 June 2013 10:47 PM
*Subject:* Re: [ns] Transmission Range of Node in WirelessPhyExt
Sorry, I
Sorry, I think that previous my post has not send to ns-users!
On Tue, Jun 11, 2013 at 3:30 PM, M Falahati md.falah...@gmail.com wrote:
Hi,
I want to use *802.11Ext* and *WirelessPhyExt* for simulating 802.11p in *
ns-2.35* and want to set transmission range of nodes to *200m*.
Which
Rafael,
You would need to spend more time with NS2 manual.
1. How can I change the transmission power to allow 2 nodes
communicate themselves at a max distance of 5m ?
It depends on the propagation model you are using. Since its just 5 m,
you may check Friis as Two Way Ground behaves as Friis
Hi ns2 users,
I am trying to get the transmission range of a node and put it in my customized
trace file. But when I access the variable radius_ in mobilenode.cc, the value
is always zero.
In my intuition, when I use: Phy/WirelessPhy set RXThresh_ 1.20174e-07
the value 1.20174e-07 should be
How can I change the transmission power to allow 2 nodes communicate
themselves at a max distance of 5m ? How can I calculate the Pt_ value ?
What does a 0.28 Pt_ value mean ?
Thanks
Hi all,
I have some troubles in setting the transmission range in WirelessPhyExt
(ns-2.34).
I tested the examples with IEEE 802.11a and 802.11p and found (by
simulaiton) a transmission range of 163m and 202m respectively.
Changing the value of Pt_ does change the transmission range, but not in
Hi,
In WirelessPhyExt, a reception depends on the SINR level at the
receiver, instead of a simple Rx_threshold. So Pt is a factor, but the
noise level as well. Also, I think that no message may be received if
its power is below the carrier sense threshold. If I remember my own
experiments
Hi all,
I need to fix the transmission range for access points and mobile stations
in an infrastructure wifi network.
I mean, how to manage to let communication restricted to a given distance?
I know that in the ns3.3 version, this parameter is not explicitly set, but
affected by others like the
Hey,
for {set i 0} {$i $opt(nn) } {incr i} {
Phy/WirelessPhy set RXThresh_ value
set node_($i) [$ns_ node]
}
will this work?
if it will then i suppose this change the range statically. Can anything be
done to change the range during runtime?
Thanks
On Mon, Dec 15, 2008 at 1:01 PM, Waleed
On Sun, Dec 14, 2008 at 1:39 AM, Mayank Daga dagamay...@gmail.com wrote:
Dear All,
I want to set different ranges for each node. How can I do that. Using
threshold.cc, we set same range for all the nodes.
Please help.
--
Regards,
Mayank Daga
MUKTI '09 | www.mukti09.in
Please help!!!
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
Hi Qasim,
Thanks for the reply and giving suggestions on the tesing scenarios.
I made another test as you suggested, however, the result still looked
positive. The following is a brief description of the settings.
Two pair of nodes are create. The first pair includes n0 and n01, and they
have
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
Hi there
It seems you have been working harder settuping up the scenario
Yes I can see a slight problem in your script
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
The first pair did not communicate. Only n3 received packet means there was
no data connection established between n0 and n1.
As to the transmission range, it depends not only on transmission power, but
also the receving threshold, and propogation model. ns2 uses TwoRayGround as
the default
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
PROTECTED]
Subject: Re: [ns] transmission range
To: ns-users@ISI.EDU
Message-ID: [EMAIL PROTECTED]
Content-Type: text/plain; charset=iso-8859-1
hi
you can change node configurataion many times in your tcl code and define
nodes in belw of node configurataion definition, also you can change Pt_
hi
you can change node configurataion many times in your tcl code and define
nodes in belw of node configurataion definition, also you can change Pt_ and
RXThresh_ for transmit and recieve ranges
Ehsan B,
-
Never miss a thing. Make Yahoo your
that's also what I want to know. If you find a solution, please share with
me. Thanks a lot!
On Dec 31, 2007 10:05 PM, muhamad faiz arief budianto [EMAIL PROTECTED]
wrote:
how can i set or define each node to have different transmission range?
i think i should change the
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
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
how can i set or define each node to have different transmission range?
i think i should change the *Phy*/WirelessPhy parameter.
but it just works for all nodes. I want it just work for some node.
I already try to use the hierarchy transmission, like from wired to wireless
(different cluster)
but
Dear all,
Thanks for your attention.
This time I am trying to make things clearer. I have 5x5 grid network with
200m spacing between rows and columns as follows:
0-123--4
| | | | |
| | | | |
Hi all,
I put in simulation script this row :
Phy/WirelessPhy set RXThresh_8.71838e-09 ;# threshold to have a
transmission range of 150m
I use to create it the script threshold.cc but if I put in simulation script
this position nodes
$node_(0) set X_ 100
Hi all,
I put in simulation script this row :
Phy/WirelessPhy set RXThresh_8.71838e-09 ;# threshold to have a
transmission range of 150m
I use to create it the script threshold.cc but if I put in simulation script
this position nodes
$node_(0) set X_ 100
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