Hi Guys,
I am playing with handover simulation in NS-2 and having some difficulty in
interpreting the results. Two 802.11 APs are placed at a certain distance such
that their footprints are not overlapping. A mobile node is made to move from
the footprint of one AP to the next (passing through
Hi Guys,
I am playing with handover simulation in NS-2 and having some difficulty in
interpreting the results. Two 802.11 APs are placed at a certain distance such
that their footprints are not overlapping. A mobile node is made to move from
the footprint of one AP to the next (passing through
Hi NS Users,
I am trying to follow the mac-802_11.cc file in the NS2. I notice "->"
operators used on several ocassions. Can somebody tell me what -> means in C++
(or in the file). For instance,
ap_list->ap_id=num; what does this mean?
There are more examples like:
temp->next->ap_power= powe
Hi NS2 Users,
I am trying to make some changes in the NS2 source files, attempting to modify
the scan procedure in the 802.11 network simulations. I added an extra "printf"
command in the mac/mac-802_11.cc and saved the changes. When I am running the
tcl code for 802.11 infrastructure networks
Hi NS users,
I am playing with the 802.11 extensions in the NS-2.33. Following is a piece of
the trace I got after running a code in which, the mobile node connects with an
AP and attempts to send information. I think in the normal implementation of
802.11, ARP comes after authentication and a
Hi NS-2 users,
I am looking at the handovers in the 802.11 networks. I understand that an =
infra.tcl file is out which incorporates the handing over mechanisms. Can =
somebody please share the code with me. I have ns-2.33 installed at OpenSUSE.
Please write back soon. Thank you very much
Hello Everyone!
I am starting to explore using SCTP in NS-2, I have gone through the NS manual.
If some one can provide me with a starting code of SCTP, I would be very
grateful. It will help me start grasping early.
Thanks and Regards,
Faraz
Hi Everyone!
I want to know how can I set the bandwidth in a 802.11 simulation. While
reading in FAQs I found that BW is decided according to the basic and data
rates. I am trying to simulate 802.11p, 27Mbps and 10MHz. I can set the data
rate easily but how can I ensure a 10MHz bandwidth? Is t
Hi everybody!
Can some one please provide me with the code of 802.11p WAVE. I think it is
available in 80211p_Performance.tcl but I don't know where to get it from. Does
there exist a separate patch for 802.11p?
Your response shall be highly appreciated.
Regards,
Faraz
Hi everyone!
I installed NS-2.30, entered all paths according to syntax posted (thankful=
ly) by you.
When I am running ./validate after that, it says
./validate line 94: date: command not found
./validate line 95: sleep: command not found
./validate line 92: date: command not found
validate ov
Hi everyone!
I installed NS-2.30, I received followin messages after ./install
1) You must put /home/faraz/Desktop/ns-allinone-2.30/otcl-1.12,
/home/faraz/Desktop/ns-allinone-2.30/lib,
into your LD_LIBRARY_PATH environment variable
If u r using csh,
setenv LD_LIBRARY_PATH
if u r using
Hi Everyone!
With Pats help I managed patching EURANE in NS-2.30 (OS: Linux). I am now
trying to run test_tcp.tcl available on EURANE website. It is not executing
correctly. I tried running each command of the program one by one to see wheres
the error. Everything is OK till I reach...
set rn
Hello!
Reference to my previous email about UMTS implementation on NS-2. Can some one
tell me if I need a separate patch for UMTS while working on NS-2.33? If so,
where can I download it from? I have seen http://eurane.ti-wmc.nl/eurane/,
patch available there is in diff.gz format. I am a newbi
Hi everyone!
I wanted to ask if NS-2.33 already has UMTS module built in or do I need to
download its patch from some where? Also, can some one please guide me to a
quick start tutorial on simulating UMTS on NS-2. A code on UMTS will GREATLY
help.
Your early response shall be highly appreciat
Hi everyone!
I am trying to add walls, roofs and structures in my simulation. I want to
simulate two rooms, each equipped with two separate antennas and separate
mobile devices. I wish to see the impact of one antenna in one room on another
on another room. Motivation is to simulate femtocell
Hi Everyone!
Can some one please direct me to something explaining the use of multiple
interface cards for a single mobile node in a wireless environment. I want to
simulate a mobile node installed with two interface cards; both communicating
to separate nodes.
Please write back soon.
Faraz
Hi everyone!
I am using tracegraph and NS2 Visual Trace Analyzer to plot results of NS-2.33
simulations. When I simulated wired-wireless scenarios last time, both
softwares failed to plot its graph. I wrote to NS2 Visual Trace Analyzer's
developer and he said his program is not compatible with
Hi everyone!
I am looking to implement MIPv6 in NS-2. I have seen a few posts and they say I
need to install MobiWan (which works only with NS-2.1b6). Can I not use Mobiwan
(or anything else in NS-2) for implementing MIPv6?
Your help will be, as always, highly appreciated
Faraz
Hi everyone!
I simulated a wired-wireless scenario in NS-2. There is one wired node,
connected to base station node. BS is further connected to wireless node.
Wireless node is sending TCP traffic to wired node via BS. I get the trace file
without error but I could not understand a few messages
Hi everyone!
How do I access IP layer in NS-2. In wireless simulations, I use MAC to declare
AP and Transport Layer by defining TCP traffic across the network. Where and
how do I specify IP Layer? I mean, is NS-2 using IP layer when I send packets
from one node to another? Which version of IP
Hi everybody,
I noticed Proxy Registration RQ and ResPonse whenever a mobile node connects to
an AP. If it is made to connect to another AP during the same simulation, not
only does it reauthenticates, reassociates, PRRP and PRRQ messages are also
exchanged again.
Mobility architectures place
Hi everybody,
How can I calculate the resulting throughput from a simulation using TCL code.
Can someone help me by providing the required piece of code for this. I am
currently using tracegraph for which every calculation requires a trace file to
be fed into it. To statistically verify result
Hi everybody,
I have simulated a wireless link in which a mobile node passes by an access
point while transmitting TCP data to it. How can I calculate average throughput
for entire data transfer. I am using tracegraph and NS visual trace analyzer;
both display resulting graphs for throughput.
Hi everyone!
Can some one help me on using OFDM in my simulation of 802.11a. I found the
code for FHSS and DSSS but these are spread spectrum techniques. Is it possible
to include OFDM in my simulation? Please guide me to some source on the net or
please find some time to write back.
Faraz
Hello,
I want to set different values to receiver power in the tcl code. The ns
documentation says threshold.cc is availabe and it is to be run to get an
executable file. That file could be used to computer receiver power for
different scenarios. How can I compile this file? Is it compiled in
Hello,
I am using ns2 for simulations and want to use tracegraph for plotting. I have
downloaded it and it is also running OK. However, I don't know how to display
graphs using it. Here is what I doing...
I open tracegraph using trgraph.exe (I m using windows xp). A dialog box opens.
I go to
Hi Everyone!
I wrote the code to see the graph of BW occupied by one of the nodes in the
trace. Can I display the graphs of other parameters as well. For example if I
wish to display the graph of beacon interval vs speed of mobile, what changes
do I need to make. Can someone please guide me to
Hi Everybody!
Could any one tell me how to define the transmission range of an access point
(AP) in ns-2.33. I want to restrict its signal from reaching the mobile nodes
outside its coverage area.
Please help me on this.
Faraz
Hi,
How can I set a limit of maximum no of packets to be sent from a node in CBR
traffic. It is
$cbr set maxpkts_ 20 (I think)
but it is not working.
Even after setting a fixed no of packets for transmission, I see more packets
flowing from source to destination.
Can some one help me please?
Hi everyone!
How can I send data to a specific port on a node in ns-2.33? I recently declare
nodes and send data among them, is there any way to send data to a certain port
of a node?
Please reply back soon.
Faraz
Hi everybody,
I am tracing the infrarstructure mode wireless networks in which, a mobile is
passing by an AP sending TCP data to it. I have placed the MAC Tracing ON.
Consequently, I get a trace file, it is very difficult to read and understand
directly. How do I know what messages are sent
Hi everybody,
I am tracing the infrarstructure mode wireless networks in which, a mobile is
passing by an AP sending TCP data to it. I have placed the MAC Tracing ON.
Consequently, I get a trace file, it is very difficult to read and understand
directly. How do I know what messages are sent be
Hi everybody,
I am trying to use xgraph. It is installed in my machine and running. I
modified my code according to available tutorials (as far as I could) to see
xgraph results. When the code is run, xgraph starts but displays no results. An
error message is "Bad x-value 'r' on line 6153 of f
Hi.
I am running the following code bu every time I run, nodes appear in different
positions and overall visualization is very bad. How can I fix the positions of
which node to appear where (while it is still part of LAN!). Also, I send data
between two nodes, which goes to the main bus and is
Hi Everybody,
I am running the following code bu every time I run, nodes appear in different
positions and overall visualization is very bad. How can I fix the positions of
which node to appear where (while it is still part of LAN!). Also, I send data
between two nodes, which goes to the main
Hello everybody,
I am trying to simulate a hand over. Following script shows two nodes (acting
as AP) and a node moving within their vicinity. After a certain amount of
simulation time, node 0 gets out of range of node 1 (AP) and stops sending
packets. This is the point it needs to get associa
Hello ALL,
I am trying to visualize the entire simulation using NAM. I open the .nam file
in the finish procedure. I have associated CBR source with one of the nodes to
make it send packets to another node. NAM executes properly at the beginning
(but does not show nodes at all), as soon as the
ndom-motion 0 ;# disable random motion
}
$ns_ at 0.1 "finish"
puts "Starting..."
$ns_ run
Regards,
Faraz
From: Mubashir Rehmani [mshrehm...@gmail.com]
Sent: Thursday, January 08, 2009 2:49 AM
To: Syed Faraz Hasan
Subject: Re
Hi all,
I get an error which I have enclosed when I try setting up nodes in wireless
scenarios. I have tried a lot of different things as suggested by other
tutorials but get the same error everytime. When I delete the lines defining
the nodes from the code, there are no error messages. Code t
Hi Everybody,
I enclose the NAM layout of a code given as under. I am trying to simulate a
LAN with CSMA/MAC/CD. The resulting diagram of the LAN is not very clear. Is
there any way to shape it up properly like a LAN. I know only the orient
command use with setting duplex links but here the li
Hello everyone,
I am looking for a simple LAN example in NS 2. I am following the isi tutorial
but it seems to have given only the lan command structure. I am looking for a
proper syntax to work out at LANs in NS2 environment.
Can some one help please?
Regards,
Faraz
Hi everyone,
I am interested in implementing infrastructure mode on a wireless network. I am
using http://www.isi.edu/nsnam/ns/doc/node173.html tutorial. It talks only
about the adhoc protocols, can't I configure a mobile node with infrastructure
routing protocols. I am not clear about the dif
Hi all,
Knowing that ns 2 is a simulation software, it is not too wise to ask this
question! But here we go...
Can I use ns 2 on one computer, set up a node, attach with it agents and
applications, transmit data and receive the same on another ns 2 node running
on another computer?
That is to
Hi all,
I run several sample programs and all ran quite well.
I was reading in a tutorial that the ns execution will create a .tr file. I am
not finding that, all I have is a .nam file. I believe .tr shall be used for
trace analysis. Where do I get it from? Also, .nam file also gives some of t
Hi all,
I have used two sample programs for executing the traces on NAM using the
ns2.33. All goes well until...
exec nam out.nam & command is executed, from the following FINISH function.
proc finish {} {
global ns nam_file
$ns flush-trace
close $nam_file
exec
Hello!
Can anyone guide me to a good tutorial of OTcl please. I can play around a
little with Tcl but in order to use NS2, I am trying to find some good tutorial
on OTcl.
Hope to hear back soon.
Best Regards,
Faraz
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