[ns] generic VBR Traffic - bit rate higher than the maximum rate set
Hi, Has anyone try using the generic VBR application made by Håkan Byström? The source can be found here http://mailman.isi.edu/pipermail/ns-users/2001-October/018453.html I understand this code will vary the time interval which packets are sent as well as the packet size. Application/Traffic/VBR set rate_ 16Kb . . . Application/Traffic/VBR set maxrate_ 32Kb; The highest data rate for my simulation run is higher than the maxrate parameter. Is this normal? I think maximum rate should be below than the max rate. If it is not normal then there is a flaw in my translated code.Btw,I'm using a Java based network simulator. Comments are appreciated. Thank you very much. Ben Send instant messages to your online friends http://uk.messenger.yahoo.com
[ns] NS2 + UCBT
Hi list, sorry for this message. I know this is not the apropriate list for discussing external NS modules, but the UCBT list seems to be no more active, and I hope there are people here with some experience with UCBT. Well, I have reproduced, using NS2 + UCBT, a scenario whose I have performed some tests using real bluetooth devices. The problem is that the behavior presented by UCBT is rather different from the behavior verified empirically. Does anybody can help me with some hint of where, and how, should I modify UCBT for modeling the bluetooth features I need to deal with?? Thanks in advance! Loreno
Re: [ns] reproducing the graphical results of EDCA model
Have you asked the original authors for their code? > -Original Message- > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf > Of wajid mehmood > Sent: quinta-feira, 12 de Outubro de 2006 14:09 > To: ns-users@ISI.EDU > Subject: [ns] reproducing the graphical results of EDCA model > > > hi all, > I want to test the EDCF simulation of the guy > from tu berlin,I want to reproduce the graph of his simulation > mentioned in the paper > "Design and Verification of an IEEE 802.11e EDCF Simulation Model in ns- > 2.26", Telecommunication Networks Group, Technische Universität Berlin, > November 2003.I wrote the scenerio with one end station and one access > point with no. of > wireless nodes as a command line parameter.I got the throughput results > w.r.t. time ,but i need to see the throughput with increasing no. of > stations as shown on the page 28 of the paper.If somebody has already done > this or any idea about it ,please do write. > many thanks > wajid > > Send instant messages to your online friends > http://uk.messenger.yahoo.com
[ns] [Fwd: How to implement aggregation?]
Original Message Subject: How to implement aggregation? From:[EMAIL PROTECTED] Date:Thu, October 12, 2006 12:57 pm To: [EMAIL PROTECTED] Cc: ns-users@isi.edu -- Hi Everybody! I have to build a hierarchical network and then apply aggregation to it, i already have the tcl scripts for the building the network, what i need to know is, which C++ files do i need to change to implement the aggregation? i mean how does one know what files to change in the ns modules to add your own functionality. My project is to make a hierarchical network,not just one but its like a 1:1 dual, 1+1 dual, 1:2 dual and 1:4 dual networks, i already have the necessary files to build these networks, the next step is to implement aggregation over these networks, and i do not know where to start from? Please help any guiding step would be really helpful. thanks a lot in advance. Thanking you Regards, Fatema.
[ns] How to implement aggregation?
Hi Everybody! I have to build a hierarchical network and then apply aggregation to it, i already have the tcl scripts for the building the network, what i need to know is, which C++ files do i need to change to implement the aggregation? i mean how does one know what files to change in the ns modules to add your own functionality. My project is to make a hierarchical network,not just one but its like a 1:1 dual, 1+1 dual, 1:2 dual and 1:4 dual networks, i already have the necessary files to build these networks, the next step is to implement aggregation over these networks, and i do not know where to start from? Please help any guiding step would be really helpful. thanks a lot in advance. Thanking you Regards, Fatema.
[ns] pls help: buffer level and data transmission rate of a node
Dear All, I am implementing a MAC protocol for Wireless Sensor Networks. I am trying to: - get the buffer level of a node, - get the data "transmission" rate of a node, (not the "channel capacity") - increase/decrease the transmission rate. Could you please give me some hints on these? Thanks in advance. Alper Bereketli Next-Generation Wireless Communications Laboratory Department of Electrical & Electronics Engineering Middle East Technical University, Ankara, TURKEY
Re: [ns] how to add a procedure in a .tcl file and make the requiredchanges in related .cc files?
Yes, This code seems ok,
What are the errors that occur?
Try this:
$self instvar mac_
$mac_(0) cmd node-change ;# force calling directly the c++ command()
and put a breakpoint the command() function in DDD to check what is
happening.
Pedro Vale Estrela
> -Original Message-
> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf
> Of amir zare
> Sent: quinta-feira, 12 de Outubro de 2006 15:22
> To: ns-users@ISI.EDU
> Subject: [ns] how to add a procedure in a .tcl file and make the
> requiredchanges in related .cc files?
>
>
> -- Forwarded message --
> From: amir zare <[EMAIL PROTECTED]>
> Date: Oct 12, 2006 5:47 PM
> Subject: how to add a procedure in a .tcl file and make the required
> changes
> in related .cc files?
> To: ns-users@isi.edu
>
> Hello All,
>
> I want to add a procedure in ns-mobilenode.tcl to implement a new
> feature. For this reason, I changed mac-802_11.cc ( where I want to add my
> change) by adding a method. So, in ns-mobilenode.tcl , in my added
> procedure, you see:
>
> Node/MobileNode instproc node-change {} {
>
>$self instvar mac_
>
>$mac_(0) node-change
>
> }
>
> and in mac-802_11.cc you see :
>
> Mac802_11::command(int argc, const char*const* argv) {
>
> if (strcmp(argv[1], "node-change") == 0) {
>
> node_change(); // this
> is
> the method I added in mac802_11
>
> return TCL_OK;
>
> }
>
> }
>
> but when I run my program that uses new feature. I mean:
>
> $node_(0) node-change
>
> I face to errors generated by ns. I am really confused and dont know how
> to
> solve this problem. I think I dont know the correct way to add the
> procedure. I hope someone can tell me where my fault is or correct the way
> I have to add this procedure to work.
>
> I learnd this way of adding a procedure by observing the procedure node-
> down
> in ~ns/tcl/lib/ns-mobilenode.cc and the related .cc file in:
> ~ns/wpan/p802_15_4mac.cc -> Mac802_15_4::command(int argc, const
> char*const*
> argv)
>
> I would appriciate any help.
>
> Regards,
>
> Amir
[ns] how to add a procedure in a .tcl file and make the required changes in related .cc files?
-- Forwarded message --
From: amir zare <[EMAIL PROTECTED]>
Date: Oct 12, 2006 5:47 PM
Subject: how to add a procedure in a .tcl file and make the required changes
in related .cc files?
To: ns-users@isi.edu
Hello All,
I want to add a procedure in ns-mobilenode.tcl to implement a new
feature. For this reason, I changed mac-802_11.cc ( where I want to add my
change) by adding a method. So, in ns-mobilenode.tcl , in my added
procedure, you see:
Node/MobileNode instproc node-change {} {
$self instvar mac_
$mac_(0) node-change
}
and in mac-802_11.cc you see :
Mac802_11::command(int argc, const char*const* argv) {
if (strcmp(argv[1], "node-change") == 0) {
node_change(); // this is
the method I added in mac802_11
return TCL_OK;
}
}
but when I run my program that uses new feature. I mean:
$node_(0) node-change
I face to errors generated by ns. I am really confused and dont know how to
solve this problem. I think I dont know the correct way to add the
procedure. I hope someone can tell me where my fault is or correct the way
I have to add this procedure to work.
I learnd this way of adding a procedure by observing the procedure node-down
in ~ns/tcl/lib/ns-mobilenode.cc and the related .cc file in:
~ns/wpan/p802_15_4mac.cc -> Mac802_15_4::command(int argc, const char*const*
argv)
I would appriciate any help.
Regards,
Amir
[ns] reproducing the graphical results of EDCA model
hi all, I want to test the EDCF simulation of the guy from tu berlin,I want to reproduce the graph of his simulation mentioned in the paper "Design and Verification of an IEEE 802.11e EDCF Simulation Model in ns-2.26", Telecommunication Networks Group, Technische Universität Berlin, November 2003.I wrote the scenerio with one end station and one access point with no. of wireless nodes as a command line parameter.I got the throughput results w.r.t. time ,but i need to see the throughput with increasing no. of stations as shown on the page 28 of the paper.If somebody has already done this or any idea about it ,please do write. many thanks wajid Send instant messages to your online friends http://uk.messenger.yahoo.com
[ns] BIC TCP / CUBIC TCP under ns-2.29
Hi all, Anyone have installed BIC TCP and CUBIC TCP under ns-2.29 ? I have downloaded files (tcp.cc and tcp.h) from their site but they are for ns-2.26. Now, I need to make changes to my files in ns-29, since I cannot JUST use ns-2.26 files. I have downloaded ns-2.26 from NS2 site, find "tcp.cc and tcp.h" files and compare them with those downloaded from CUBIC site by using #diff tcp_226-nomoduls.cc tcp_cubic_226.cc > diff_cc_files.txt #diff tcp_226-nomoduls.cc tcp_cubic_226.cc > diff_cc_files.txt Result is to many changes to be made. Now, I don't know what to do. Am I missing something here ? It should be simple to install a modul.
[ns] two way communcation between wireless station and wired station
hi ns-user i want to simulate two way communcation between wireless station and wired station. how can i simulate this scenario. how can i set wired station as server and all mobile stations as client. if you know, please help me. thanks alot mayank - Do you Yahoo!? Get on board. You're invited to try the new Yahoo! Mail.
Re: [ns] how can we echange variable between layer???
If you pass these between c++ modules by calling TCL procedures, this is very easy (but slow) Start by checking this page http://tagus.inesc-id.pt/~pestrela/ns2/ns2_tips.html#_Toc124667331 Pedro Vale Estrela > -Original Message- > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf > Of Bilel Romdhani > Sent: terça-feira, 10 de Outubro de 2006 11:47 > To: Ns-users@ISI.EDU > Subject: [ns] how can we echange variable between layer??? > > > hi everybody, > i m using ns2.27 to simulate wireless scenario and i want to know how can > we > echange variable between layer, ie, i want to use the cw_ variable on the > droptail.cc file how can i do that if it's possible of course! > > thanks a lot
[ns] How to implement a new Protocol in NS2?
Hello, I'm a beginner in NS2 and have tested to implement a new example Protocol in NS2, using the Tutorial: "Implementing a New Manet Unicast Routing Protocol in NS2" masimum.dif.um.es/nsrt-howto/pdf/nsrt-howto.pdf I did all changes who are necessary but I can't use this new Agent in a simple Tcl Script in the way like this, because I get the error message "invalid command name": . . . set p1 [new Agent/TestProt] $ns attach-agent $n2 $p1 . . . Who can help me? -- Der GMX SmartSurfer hilft bis zu 70% Ihrer Onlinekosten zu sparen! Ideal für Modem und ISDN: http://www.gmx.net/de/go/smartsurfer
[ns] Digital fountain on ns2..
hi all i wonther if someone done digital fountain on ns2 or have the encoding/decoding source code in c/c++. please help me. regards, pezhman
[ns] Standard Deviation
Hi, What does it mean Standard Deviation metric in the MAC layer context? and how do we calculate it? -- best, wal.
Re: [ns] Problems compiling ns-2.30 with g++ 4.1
On Wed, 2006-10-11 at 22:38 -0700, Tom Henderson wrote: > Ignacio Mas Ivars wrote: > > Hi all! > > I am trying to compile ns-2.30 in an linux Ubuntu box with g++ 4.1 and I > > am having problems with the linker. All the files are compiled correctly > > but when linking the following message appears: > > > > /usr/bin/ld: ns: hidden symbol `__stack_chk_fail_local' > > in /usr/lib/libc_nonshared.a(stack_chk_fail_local.oS) is referenced by > > DSO > > /usr/bin/ld: final link failed: Nonrepresentable section on output > > collect2: ld returned 1 exit status > > > > > > I have tried compiling as well with g++ 4.0 without success and now I am > > a bit out of ideas. Any pointers on where to look? This is my version of > > g++ (GCC) 4.1.2 20060928 (prerelease) (Ubuntu 4.1.1-13ubuntu5) > > > > Thanks for the help! > > /Nacho > > > > --- > >,,, > > (o o) > > --ooO--(_)---Ooo--- > > Time flies like an arrow, fruit flies like a banana. -Groucho Marx > > --oo00oo--- > > > > > > > > This page seems to suggest to turn off SSP by changing the default > options to build with -fno-stack-protector > > https://wiki.ubuntu.com/GccSsp > > Let me know if that works. > > Tom Hi! I tried that but still the same error. This are the flags passed to g++ g++ -c -O3 -march=pentium3 -pipe -fomit-frame-pointer -funroll-loops -fexpensive-optimizations -fno-stack-protector -Wall and the error while linking is still the same... Thanks anyway! /Nacho --- ,,, (o o) --ooO--(_)---Ooo--- I only please one person per day. Today is not your day. Tomorrow isn't looking good either. - Scott Adams --oo00oo---
