[ns] Loading a large movement trace file

to avoid that. Does anyone have any idea about how to get rid of such a problem, or any experience with similar issues? Thanks, Marco Fiore

[ns] R: Can we get rid of TCP in wireless?

at transport layer: in that case it is sufficient to use the UDP protocol... you can do that simply changing the level 4 protocol from TCP to UDP... Regards, Marco Fiore

[ns] R: Check_pktCTRL: Invalid MAC Control subtype.

That error message is generated by 802.11. See mac/mac-802_11.cc for details. Regards, Marco Fiore Messaggio originale Da: [EMAIL PROTECTED] Data: 4-mar-2006 6.23 AM A: ns-users@ISI.EDU Ogg: [ns] quot;Check_pktCTRL: Invalid MAC Control subtypequot;. Hi, I have written a routing

[ns] R: regarding promiscuous mode

Krithiga, answers are inline. Regards, Marco Fiore Messaggio originale Da: [EMAIL PROTECTED] Data: 12-mar-2006 1.24 PM A: ns-users@ISI.EDU, [EMAIL PROTECTED], aodvimpl-public- [EMAIL PROTECTED] Ogg: [ns] regarding promiscuous mode hi all, i am doing proj in mobile

[ns] R: sending packets from objects within agent

Elise, you could have a look at the website: http://masimum.dif.um. es/?Documents where Francisco Ros and other researchers present their work on implementing a new routing protocol for ad-hoc networks. Regards, Marco Fiore Messaggio originale Da: [EMAIL PROTECTED] Data: 27-mar

Re: [ns] Trace file

particular lines. Many references/tutorials/examples of both languages are available on the web. Regards, Marco Fiore Original Message From: [EMAIL PROTECTED] Date: Mar 31, 2006 12:52 PM To: ns-usersns-users@ISI.EDU Subj: [ns] Trace file Hi all, Is there a simple mode to modify the trace file

[ns] R: why setdest so slow?

is to patch the scheduler with the following code: http: //netlab.caltech.edu/~weixl/technical/ns2patch/ns2patch.htm Hope this helps, Marco Fiore Messaggio originale Da: [EMAIL PROTECTED] com Data: 1-apr-2006 7.39 PM A: ns-users@ISI.EDU Ogg: [ns] why setdest so slow? Hi, I am using

[ns] DataRate in Header

Hi everyone, does anybody know if and where the DataRate at which packets are transmitted on a wireless channel is recorded in some header? Thanks, Marco Fiore

[ns] R: make: *** No rule to make target `tcl/lib/noah.tcl', needed by `gen/ns_tcl.cc'. Stop.

Qasim, the error messages you get informs you that the file tcl/lib/noah.tcl could not be find. Check that the path is correct and the file exists. Regards, Marco Fiore Messaggio originale Da: [EMAIL PROTECTED] Data: 4-apr-2006 3.27 PM A: [EMAIL PROTECTED] EDU Ogg: [ns] make

[ns] R: which trace format is more accurate?

versions of you awk script, and then you'll get the same results. Regards, Marco Fiore Messaggio originale Da: [EMAIL PROTECTED] Data: 15-apr-2006 8.06 AM A: ns-users@ISI.EDU Ogg: [ns] which trace format is more accurate? Hi All, I am generating both trace formats (old and new

[ns] R: Re: R: which trace format is more accurate?

Sasan, I see your point. How much do differ results you got in the two cases? By exact same simulation you mean that you simply changed the trace format and nothing else (included the machine you working on)? Regards, Marco Fiore Messaggio originale Da: [EMAIL PROTECTED] ucc.ie

[ns] R: help regarding trace file

Please have a look to ns manual, ns mailing list history and relative FAQ before posting to the mailing list itself! This is the third or fourth mail about trace file format this month! Regards, Marco Fiore Messaggio originale Da: [EMAIL PROTECTED] Data: 19- apr-2006 9.36 AM A: ns

[ns] R: Re: R: which trace format is more accurate?

Sasan, don't have a clue on that. I fear the only way is to analyze the trace files by hand to spot the differences. Maybe printing the sending times (using an awk script) can speed up the process. Let us know if you can solve the problem. Regards, Marco Fiore Messaggio originale

[ns] R: help regarding for awk file

For simple topologies/statistics, you may give a look at trace2stats: http://www.reti.polito.it/fiore Regards, Marco Fiore Messaggio originale Da: [EMAIL PROTECTED] Data: 26-apr-2006 1.25 PM A: ns_users_request[EMAIL PROTECTED], ns_usersns- [EMAIL PROTECTED] Ogg: [ns] help regarding

[ns] R: Which ad hoc routing protocol is used in 802.11?

. Regards, Marco Fiore Messaggio originale Da: [EMAIL PROTECTED] Data: 26-apr-2006 12.46 PM A: NS USERS ns-users@ISI.EDU Ogg: [ns] Which ad hoc routing protocol is used in 802.11? Hi All, Which ad hoc routing protocol is used in 802.11? I can't find any information about this. Can

[ns] R: Adhoc Rounting Overhead

for that). Regards, Marco Fiore Messaggio originale Da: [EMAIL PROTECTED] Data: 25-apr-2006 6.33 PM A: ns_usersns-users@ISI.EDU Ogg: [ns] Adhoc Rounting Overhead Hello NS users, I am working on some Adhoc simulations for my graduation project, and I am trying to describe

[ns] R: codes of mobility models in adhoc.

Look for projects such as IMPORTANT, BonnMotion, CanuMobiSim. Regards, Marco Fiore Messaggio originale Da: [EMAIL PROTECTED] com Data: 25-apr-2006 12.23 PM A: ns-users@ISI.EDU Ogg: [ns] codes of mobility models in adhoc. hi every body im interested in a project dealing

[ns] R: Modifying 802.11 wireless Channel Propagation Delay

Look for the define line commanding the propagation delay of the wireless channel in mac/mac-802_11.h. Regards, Marco Fiore Messaggio originale Da: [EMAIL PROTECTED] Data: 5-mag-2006 9.49 AM A: ns-users@ISI.EDU Ogg: [ns] Modifying 802.11 wireless Channel Propagation Delay Hi

[ns] R: Underwater acoustic channel model?

Christian, ns-2 does not support any of the models/protocols you mentioned. I think you will have to code and add to the simulator them if you want to use them within ns. Regards, Marco Fiore Messaggio originale Da: [EMAIL PROTECTED] Data: 19-mag- 2006 4.09 PM A: ns-users@ISI.EDU

[ns] R: WLAN and SCTP?

Hi, unfortunately, ns-2 SCTP implementation does not currently support wireless links. Regards, Marco Fiore Messaggio originale Da: [EMAIL PROTECTED] Data: 22-mag-2006 3.09 AM A: ns- [EMAIL PROTECTED] Ogg: [ns] WLAN and SCTP? Hi, I am a posgraduate in Beijing University of Posts

[ns] R: About the multihome in SCTP!

links support as well. Regards, Marco Fiore Messaggio originale Da: [EMAIL PROTECTED] Data: 7-giu-2006 11.07 AM A: ns-users@ISI.EDU Ogg: [ns] About the multihome in SCTP! Hi, I want to know how to configure a SCTP node in NS2.29,the type of address is hierachical.I simulate the code

[ns] R: Re: R: two equal UDP CBR flows in droptail queue get different bandwidths?

*exact* time. Regards, Marco Fiore Messaggio originale Da: [EMAIL PROTECTED] Data: 8-giu-2006 5.09 AM A: Marco Fiore[EMAIL PROTECTED] Ogg: Re: R: [ns] two equal UDP CBR flows in droptail queue get different bandwidths? That does this flag do exactly? On Wednesday 07 June 2006 08:39

[ns] R: Autorate in 802.11G

However this modification is not working, I see that everytime the dataRate is at 54Mbps, including if I comment every line that define the dataRate, including the lines tcl.evalf(Mac/802_11 set dataRate_); if (strcmp(tcl.result(), 0) != 0) bind_bw(dataRate_,

[ns] R: Movements in wireless scenario

Andrea, god is only used for statistical purposes. If you are interested in generating nodes movement simply use the 'setdest' command, ignoring god. E.g. $ns_ at 10.0 $node_(0) setdest X Y S where X,Y are the coords of destination and S is the speed (in m/s). bye, Marco Messaggio

[ns] R: RTSThreshold in Simulations

Alicia, RTS/CTS is used when frame size is greater than the RTS threshold. So you should act on the RTS threshold value to set RTS/CTS on or off. Marco Messaggio originale Da: [EMAIL PROTECTED] Data: 3-lug-2006 1.31 PM A: ns-users@ISI.EDU Ogg: [ns] RTSThreshold in Simulations

[ns] R: Ending the simulation after a transfer is finished

Prateek, setting the finish time to a high value should not cause any harm, nor should it make you wait more. Since ns-2 is an event-driven simulator, once no event is scheduled the time shall move directly to the 'end of simulation' event, in no (user) time. I don't know if other better

[ns] R: Re: R: Ending the simulation after a transfer is finished

Prateek, unfortunately, I think you are right... Marco Messaggio originale Da: [EMAIL PROTECTED] Data: 4-lug- 2006 1.27 PM A: ns-users@isi.edu Cc: Marco Fiore[EMAIL PROTECTED] it Ogg: Re: R: [ns] Ending the simulation after a transfer is finished Hi Marco, I think this does

[ns] R: 802.11 dynamic bit rate change

Guillermo, ns-2 does not offer native support for such phenomenon. You can have a look at the patch at www.reti.polito.it/fiore which adds realistic propagation and ARF support. Marco Messaggio originale Da: [EMAIL PROTECTED] Data: 11-lug-2006 11.50 AM A: Ns Usersns-users@ISI.EDU

[ns] R: Calculating Mean end-to-end delay.

Nicholas, I think the right way would be: mean = [mean * (total_pkts- 1) + curr_pkt_delay] / total_pkts where total_pkts represents the number of packets received, including the current one (i.e., that determining the curr_pkt_delay contribution). Regards, Marco Messaggio

[ns] R: How to generate ocean node movement for wireless scenarios

Hi, look for references to the 'setdest' command, which allows you to define nodes movements during simulation. Marco Messaggio originale Da: [EMAIL PROTECTED] Data: 30-ago-2006 7.02 PM A: ns-users@ISI.EDU Ogg: [ns] How to generate ocean node movement for wireless scenarios Hi

[ns] R: Re: Measuring physical data rate for wireless medium

Hi, you could have a look at the wireless patch at http://www.reti. polito.it/fiore regards, Marco Messaggio originale Da: [EMAIL PROTECTED] Data: 14-set-2006 8.22 PM A: Piyush Agrawal[EMAIL PROTECTED] Cc: ns-users@ISI.EDU Ogg: Re: [ns] Measuring physical data rate for wireless

[ns] R: RSSI measurement

Loreno, in common/packet-stamp.h you can find the PacketStamp structure, which is included in any ns packet. It stores information on the transmitted and received power. You can access this information with, for example, p-txInfo_.RxPr, which returns the received power of packet p. Note

[ns] R: Re: R: RSSI measurement

, Marco Messaggio originale Da: [EMAIL PROTECTED] com Data: 18-ott-2006 7.58 PM A: Marco Fiore[EMAIL PROTECTED] Cc: ns-users@isi.edu Ogg: Re: R: [ns] RSSI measurement Hi Marco, very thanks to your reply! I will take a look at the structure you said and doing some tests. Based in what you

[ns] R: TCP fixed data transfer

Andrea, if you want to transmit 1 Mbps every 10 mins, simply use a recursive function like: proc sendData {} { global ns_ puts time : [$ns_ now] $ns at [$ns_ now] $ftp send 1e6 $ns_ at [expr [$ns_ now] + 600.0] sendData } $ns_ at 600.0 sendData which every

[ns] R: how to calculate end to end delay in wireless scenario

Hi, have a look at trace2stats, at http://www.reti.polito.it/fiore bye, Marco Messaggio originale Da: [EMAIL PROTECTED] Data: 15-nov-2006 10.38 AM A: ns usersns-users@ISI.EDU Ogg: [ns] how to calculate end to end delay in wireless scenario hi all, can any one tell me, how to

[ns] R: wimax and Wifi TxPower default value

Ramzi, you can use the Tcl command Phy/WirelessPhy set Pt_ power Look in tcl/lib/ns-default.tcl for default value and other wireless phy parameters. bye, Marco Messaggio originale Da: ramzi. [EMAIL PROTECTED] Data: 22-nov-2006 4.06 PM A: ns-users@ISI.EDU Ogg: [ns] wimax and Wifi

[ns] R: Phy/WirelessPhy set Pt_ ?

Hi, Array should be array... bye, Marco Messaggio originale Da: [EMAIL PROTECTED] Data: 26-nov-2006 5.42 PM A: ns-users@ISI.EDU Ogg: [ns] Phy/WirelessPhy set Pt_ ? I am attemped to use the code line [[lindex [$node_ (0) Array get netif_] 1] set Pt_ 0,5] and you giving the

[ns] R: send off packet on different link

Luca, the routing of multiple flows generated by the same source node is determined by: 1. destination node of flow 2. routing algorithm employed In your case, if the two flows are directed to two different nodes, they will probably choose different (not necessarily disjoint) routes. If the

[ns] R: Rate adaptation in ns-2

Hi, if you refer to rate-based congestion control, the first result by searching Google is: Source code for RAP in ns2 http://netweb.usc. edu/reza/RAP/NewRAP/ If you refer to rate adaptation at MAC layer in wireless networks, by looking at the ns mailing list archives, a patch is available

[ns] R: obstacle mobility model

Ibrahim, have a look at: Amit Jardosh, Elizabeth M. Belding-Royer, Kevin C. Almeroth, and Subhash Suri. Towards Realistic Mobility Models for Mobile Ad hoc Networks. In the Proceedings of MOBICOM, San Diego, CA, September 2003. bye, Marco Messaggio originale Da: [EMAIL

[ns] R: SINR and NS-2 802.11 simulations

Hi, ns-2 physical layer modeling is notoriously weak. A patch solving some of the issues you mentioned is avaialble at http://www.reti.polito. it/fiore bye, Marco Messaggio originale Da: [EMAIL PROTECTED] cmu.edu Data: 8-mar-2007 3.21 AM A: ns-users@ISI.EDU Ogg: [ns] SINR and NS-2

[ns] R: Re: Awk script for Jitter in NS2

For the question on the jitter, you can find the formulae in the read. me. There's no right formula, I used to employ the first, which is defined in RTP's RFC. I added the other three upon request of other users, who usually employed them for jitter calculation. Regards, Marco

Re: [ns] Question about wireless testing ?

The output is correct. It's just some control messages ns-2 gives at the beginning and end of simulation. If you see NS EXITING... everything went fine and you can find the results in your tracefile :) bye, Marco Original Message From: [EMAIL PROTECTED] Date: Mar 17, 2007 5:31 PM

[ns] R: problem in delay and throughput script

Ibrahim, download the latest version from http://reti.polito.it/fiore and follow the read.me for instructions on how to run the scripts. bye, Marco Messaggio originale Da: [EMAIL PROTECTED] com Data: 22-mar-2007 10.19 AM A: ns-users@ISI.EDU Ogg: [ns] problem in delay and throughput

[ns] R: analyse trace files

Hi Stephan, have a look at tracegraph or trace2stats. bye, Marco Messaggio originale Da: [EMAIL PROTECTED] Data: 6-apr- 2007 7.37 AM A: ns-users@ISI.EDU Ogg: [ns] analyse trace files Hello again! Think my last Mail was lost :-( I'm using ns-2.29 and do some wireless simulations.

[ns] R: why RTP header in UDP's sendmsg() ?

Hi Timo, my guess is that those infos can be useful for statistics collection. Is the RTP header considered in the UDP header size? If not, it is an invisible header, put there just for informational purposes and not affecting the simulation outcome. bye, Marco Messaggio

[ns] R: how can I graphically show ad hoc mobile nodes using nam?

Ciao, other than nam, you can try with Huginn: http://www.informatik. uni-mannheim.de/pi4.data/content/projects/huginn/ or iNSpect: http: //toilers.mines.edu/Public/NsInspect bye, Marco Messaggio originale Da: [EMAIL PROTECTED] Data: 6-apr-2007 7.12 PM A: ns- usersns-users@ISI.EDU

[ns] R: analyse trace file- packet delay

Hi, you can use Perl/awk to parse the tracefile, or have a look at tracegraph or trace2stats (google for them). Also, you find a ton of mails on the topic in the mailing list archives... bye, Marco Messaggio originale Da: [EMAIL PROTECTED] Data: 6-apr-2007 6.18 PM A:

[ns] R: Help in simulating Bianchi's results

Hi Riz, 1. I am not sure about how to generate a scenario where all the nodes are contending as in my case of 10 nodes only 0 2 4 6 8 are contending and the other 1 3 5 7 9 are the sink or them so how can I come with a scenario where all nodes are coteding as in Bianchi's paper attach

[ns] R: Simulation with real payload

Anand, there's a traffictrace agent somewhere in the ns distribution. Look for traffictrace.cc/h in the source tree to get the actual Tcl class name. Marco Messaggio originale Da: [EMAIL PROTECTED] Data: 12-apr-2007 3.54 AM A: [EMAIL PROTECTED] Ogg: [ns] Simulation with real

[ns] R: Scheduler error in 802.11

Bahman, ususally the Event UID not valid! error means that an event in the event list has a time that is lower than the current time, or that the handler (the timer in your case) was deleted before the event was extracted from the list. So I suggest you to look for strange behaviors of your

[ns] R: Re: Ask Google is not a polished answer, isn't it?

Dear Sidney and Hagen, actually there's a way to include real application-level data in an ns-2 packet. The manual has one section on this: http://www.isi.edu/nsnam/ns/doc/node516.html Basically, it's all about defining an Application Data Unit (ADU) containing all the desired data, to be

[ns] R: throughput of 802.11b

You might find the following link interesting: http://www.ece.rice. edu/~jpr/ns/docs/ns-802_11b.html bye, Marco Messaggio originale Da: [EMAIL PROTECTED] Data: 11-mag-2008 10.46 AM A: ns-users@ISI.EDU Ogg: [ns] throughput of 802.11b Hi all, I have tried to run 802.11b in