[ns] Scenario file
How can I use a scenario file in tcl script generated by indep-utils/cmu-scen-gen/setdest ? thanks -- Rafael Perazzo B Mota rafaelpera...@gmail.com Web-page: https://sites.google.com/site/rafaelperazzo/ Doutorando em Ciência da Computação Universidade de São Paulo (USP) Campus da Capital Instituto de Matemática e estatística (IME) --
Re: [ns] Modifying ns2 to control the output in the trace-file
Check the file: trace/cmu-trace.cc 2013/2/26 Adel Qodmani : > > Hello everyone, > > In an earlier message to the mailing list, I was wondering how can I modify > a tcl script to force the trace-file output to contain the locations of my > mobile nodes; the reply I got said that such a thing isn't currently > supported by ns2 and hinted to modify the C++ files to add such a thing as > I need. > > Can you someone just point out to me which C++ file is responsible for > printing the results on the trace-file? or more specifically; > which C++ file should/can I modify to let ns2 print the locations of my > nodes to the trace-file? > > Thanks, > Adel -- Rafael Perazzo B Mota rafaelpera...@gmail.com Web-page: https://sites.google.com/site/rafaelperazzo/ Doutorando em Ciência da Computação Universidade de São Paulo (USP) Campus da Capital Instituto de Matemática e estatística (IME) --
[ns] Creating many wireless nodes
How can I create, for instance, 100 wireless nodes in tcl script ?
I tried
set nn 100
for {set i 1} {$i < $val(nn) } { incr i } {
set tag($i) [new Agent/...]
$tag($i) set var1_ $i+10
$tag($i) set time_ 1
$tag($i) set debug_ 0
}
But I am not able to bind the vars. The values are not assigned.
What's my mistake ?
Thanks
--
Rafael Perazzo B Mota
rafaelpera...@gmail.com
Web-page: https://sites.google.com/site/rafaelperazzo/
Doutorando em Ciência da Computação
Universidade de São Paulo (USP)
Campus da Capital
Instituto de Matemática e estatística (IME)
--
[ns] Bind a float
How can I bind a float member ?
For example, when I bind an integer (bind("value_",&value_) it works.
When I bind a float (bind("number_",&number_) I receive errors.
What can I do to solve this problem ?
Thanks,
--
Rafael Perazzo B Mota
rafaelpera...@gmail.com
Web-page: https://sites.google.com/site/rafaelperazzo/
Doutorando em Ciência da Computação
Universidade de São Paulo (USP)
Campus da Capital
Instituto de Matemática e estatística (IME)
--
[ns] Transmission range
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
[ns] Disable collisions
Is there any way to disable colisions on 802.11 mac layer ? I 'd like to receive all frames and implement in Agent the anti-collision algorithm. Thanks Rafael
[ns] Random number between two floats
Helllo users, Is there any way to generate a random number between two given float numbers ? For example, I'd like to generate a number between 0.1 and 0.3. I'm using the command double tempo = Random::uniform(0,time_); But this command requires two int numbers, instead of two float numbers. Thanks!! -- Rafael Perazzo B Mota rafaelpera...@gmail.com Web-page: https://sites.google.com/site/rafaelperazzo/ Doutorando em Ciência da Computação Universidade de São Paulo (USP) Campus da Capital Instituto de Matemática e estatística (IME) --
Re: [ns] Ns-users Digest, Vol 109, Issue 21
How can I do that ? Em 25/01/2013 00:08, "Fazlullah Khan" escreveu: > > Hello Rafael > How about to use Error Model between those two nodes, then you will get the > dropped packet in the trace file. > On Fri, Jan 25, 2013 at 10:00 AM, wrote: > > > : [ns] Drop a packet > > > > > > -- > Regards > Fazlullah Khan >
[ns] Drop a packet
Hello users, Does anybody know how can I drop a packet ? For example: When my Agent receive a packet from a particular host, I'd like to drop the packet, and this packet should appear in the trace file like: d -t 0.000 ... I've tried Packet::free(p) and drop(p), but when I opened the trace file, there's no packet dropped. How can I do this ? Thanks, -- Rafael Perazzo B Mota rafaelpera...@gmail.com Web-page: https://sites.google.com/site/rafaelperazzo/ Doutorando em Ciência da Computação Universidade de São Paulo (USP) Campus da Capital Instituto de Matemática e estatística (IME) --
Re: [ns] Wait for a packet
Hello Natalya, Where can I get this information ? What file should I read ? Em 24/01/2013 13:31, "Natalya Rozhnova" escreveu: > Hi Rafael, > > Timers are your best friends in this case. ;) You can do this by analizing > how a TCP retransmission timer works. > > Natalya > > 24.01.2013, 23:25, "Rafael P B Mota" : > > Hello users, > > Does sombody know how to can I make a node wait for a reply from another > node ? > > For example: > > Node 1 sends a packet do Node 2. Node 1 can wait 0.5 seconds (for the > reply) before try another request again. If node 2 sends a reply do > Node 1, that's ok. Else , Node 1 after 0.5 seconds sends another > packet request again to Node 2. Should I use something like a Timer ? > > How can I do this ? > > -- > > > Rafael Perazzo B Mota > rafaelpera...@gmail.com > Web-page: https://sites.google.com/site/rafaelperazzo/ > Doutorando em Ciência da Computação > Universidade de São Paulo (USP) > Campus da Capital > Instituto de Matemática e estatística (IME) > > -- > >
[ns] Wait for a packet
Hello users, Does sombody know how to can I make a node wait for a reply from another node ? For example: Node 1 sends a packet do Node 2. Node 1 can wait 0.5 seconds (for the reply) before try another request again. If node 2 sends a reply do Node 1, that's ok. Else , Node 1 after 0.5 seconds sends another packet request again to Node 2. Should I use something like a Timer ? How can I do this ? -- Rafael Perazzo B Mota rafaelpera...@gmail.com Web-page: https://sites.google.com/site/rafaelperazzo/ Doutorando em Ciência da Computação Universidade de São Paulo (USP) Campus da Capital Instituto de Matemática e estatística (IME) --
Re: [ns] tcl script
Show us your tcl script. It will be easier to help you. Em 04/11/2012 11:28, "shiny" escreveu: > > hi frndz, > i have set my ftp stop time as 250 in my tcl script but nam window stop at > 18 sec itself. can anyone help me plz. very urgent.. > > -- > With Regards, > John Shiny.J >
Re: [ns] how to Re compile NS2 after modifing a .cc file ?
Just run make command in ns-2.xx folder. Rafael Em 03/11/2012 07:23, "Basma Bejaoui" escreveu: > > I modify a .cc files for my project simulation, > How to recompile NS2, to consider the modification ?? > thx > > -- > *Cordialement* > *Basma Bejaoui* > *Ingénieur Informatique, Génie Télécommunication et Réseaux * > *+216 20 09 52 02 * >
Re: [ns] broadcast tranmission MAC leve 802.11
Pedro, Just set the destination address to IP_BROADCAST. It's the best way. Rafael 2012/10/23 pedro chaparro : > > Hi,in 802.11 which is the address to use in destination field when i want > to send some packet in broadcast way?It is -2? > Thanks > > -- > Pedro Alonso Chaparro Valero R&D Engineer > Ciudad Politecnica de la Innovación > iTEAM - Mobile Communications Group > Polytechnic University of Valencia > C\ Camino de Vera S/N, Edificio 8G > 46022 Valencia, Spain -- Rafael Perazzo B Mota rafaelpera...@gmail.com Web-page: https://sites.google.com/site/rafaelperazzo/ Doutorando em Ciência da Computação Universidade de São Paulo (USP) Campus da Capital Instituto de Matemática e estatística (IME) --
[ns] Trace only specific fields
Hello ns users, Is there any way to trace only some fields, to avoid trace-all option ? For example, I need only the options: (s/r/d), -t (time), -Ni, -Is, -Id, -Ii. How can I do this ? My trace files are becoming to large with a lot of unecessary information. Thanks for help!! -- Rafael Perazzo B Mota r afaelpera...@gmail.com Web-page: https://sites.google.com/site/rafaelperazzo/ Doutorando em Ciência da Computação Universidade de São Paulo (USP) Campus da Capital Instituto de Matemática e estatística (IME) --
Re: [ns] Random time to send a packet
Hello Natalya
Thank you very much for your help. Now my agent is working properly. It
delays x random seconds.
Rafael
2012/10/3 Natalya Rozhnova
> Hi Rafael,
>
> In order to use the Random class of ns2 you should include random.h in
> your code. I guess there are some differents distributions of random
> numbers, not only uniform.
> Normally sch.schedule (blabla) is the same function as send. So, the
> difference between send and schedule is just that the first one sends a
> packet p with no delay while the second one adds a little delay before
> sending a packet p.
> If you look a realization of the function "send" you'll find something
> like "target_->recv(p)".
> What's about "schedule": this is a timer that executes the same
> "target_->recv(p)" but in some seconds (the third parameter: a delay).
>
> Natalya
>
> 03.10.2012, 23:46, "Rafael P B Mota" :
>
> Hello Natalya,
> I found a problem in my random number generator. The number generated was
> to high.
> I tried to use your solution (Random::uniform(0,1)) but the compiler was
> unable to find the function and class Random. What library should I include
> to use Random::uniform ?
>
> Another question: If I use sch:schedule(target_,packet,time) there's no
> need to use the function send(packet) ?
>
> Thank you very much for your help!!!
>
> Rafael
>
>
>
> 2012/10/3 Natalya Rozhnova
>
> Hey, In addition I guess the delay has to be in seconds and not in
> milliseconds.
>
>
> 03.10.2012, 22:51, "Natalya Rozhnova" :
>
> It's strange... I use exactly the same idea. (I guess you are working on
> information-centric networking :-) ). Here is a piece of my code I'm using
> in my server agent:
>
> rtt_alea = Random::uniform(0,1);
> Scheduler& sch = Scheduler::instance();
> sch.schedule(target_, Chunk, rtt_alea);
>
> You don't need the function send using this realization.
> or me everything works well... Try to print your delay value, may be it is
> not computed correctly and probably it's very large.
> Print your value into the consol to be sure this is not a trouble.
> 03.10.2012, 22:38, "Rafael P B Mota" :
>
> Hello Natalya,
>
> I tryed the solution:
>
>srand(time(NULL));
>int tempo = rand() % 400 + 100;
>Scheduler& sch = Scheduler::instance();
>sch.schedule(target_,pktret,tempo);
>//send(pktret,0);
>
> But the packet is not sent.
> If I uncomment the line send(pktret,0) I get an error like this:
> Scheduler:
> Event UID not valid!
>
> What should I do ?
>
> 2012/10/3 Natalya Rozhnova
>
> Hi,
>
> There are two ways to do it. Try this way for example:
>
> Scheduler& sch = Scheduler::instance();
> sch.schedule(target_, [packet you want to send], [delay in ms]);
>
> The second way I don't remember exactly but it consists in using the
> function reschedule. You can read about these functions in detail in ns2
> manual.
>
> Hope it helps you,
> --
> Cordialement,
> Natalya Rozhnova
>
> 03.10.2012, 21:44, "Rafael P B Mota" :
>
> Hello,
>
> I am trying to use a random delay (in receiver) before the packet is sent
> back to the sender agent. For example:
>
> 1) the receiver agent receive the sender packet
> 2) the receiver sets up a response packet
> 3) Wait for a random time (in ms)
> 4) sends the packet.
>
> I don't know how to do the step 3.
>
> I am pasting the code bellow: Somebody can help me ?
>
> void MyAgent::recv(Packet* pkt, Handler*)
> {
> hdr_ip* hdrip = hdr_ip::access(pkt);
> hdr_rfidPacket* hdr = hdr_rfidPacket::access(pkt);
> if (hdr->tipo_==1) {
> Packet* pktret = allocpkt();
>hdr_rfidPacket* hdrTag = hdr_rfidPacket::access(pktret);
>hdr_ip* hdrIp = hdr_ip::access(pktret);
>hdrTag->tagEPC_ = tagEPC_;
> hdrTag->id_ = hdr->id_;
>hdrTag->tipo_ = 0;
>hdrIp->daddr() = IP_BROADCAST;
>hdrIp->dport() = hdrip->sport();
>*//HOWTO WAIT A RANDOM TIME (in miliseconds) before send back the
> packet ??*
>
> send(pktret,0);
> }
> else {
> Packet::free(pkt);
> }
> Packet::free(pkt);
> return;
> }
>
> --
>
>
>
>
>
> Rafael Perazzo B Mota
> r afaelpera...@gmail.com
>
> Web-page: https://sites.google.com/site/rafaelpera
Re: [ns] Random time to send a packet
Hello Natalya,
I found a problem in my random number generator. The number generated was
to high.
I tried to use your solution (Random::uniform(0,1)) but the compiler was
unable to find the function and class Random. What library should I include
to use Random::uniform ?
Another question: If I use sch:schedule(target_,packet,time) there's no
need to use the function send(packet) ?
Thank you very much for your help!!!
Rafael
2012/10/3 Natalya Rozhnova
> Hey, In addition I guess the delay has to be in seconds and not in
> milliseconds.
>
>
> 03.10.2012, 22:51, "Natalya Rozhnova" :
>
> It's strange... I use exactly the same idea. (I guess you are working on
> information-centric networking :-) ). Here is a piece of my code I'm using
> in my server agent:
>
> rtt_alea = Random::uniform(0,1);
> Scheduler& sch = Scheduler::instance();
> sch.schedule(target_, Chunk, rtt_alea);
>
> You don't need the function send using this realization.
> or me everything works well... Try to print your delay value, may be it is
> not computed correctly and probably it's very large.
> Print your value into the consol to be sure this is not a trouble.
> 03.10.2012, 22:38, "Rafael P B Mota" :
>
> Hello Natalya,
>
> I tryed the solution:
>
> srand(time(NULL));
> int tempo = rand() % 400 + 100;
> Scheduler& sch = Scheduler::instance();
> sch.schedule(target_,pktret,tempo);
> //send(pktret,0);
>
> But the packet is not sent.
> If I uncomment the line send(pktret,0) I get an error like this: Scheduler:
> Event UID not valid!
>
> What should I do ?
>
> 2012/10/3 Natalya Rozhnova
>
> Hi,
>
> There are two ways to do it. Try this way for example:
>
> Scheduler& sch = Scheduler::instance();
> sch.schedule(target_, [packet you want to send], [delay in ms]);
>
> The second way I don't remember exactly but it consists in using the
> function reschedule. You can read about these functions in detail in ns2
> manual.
>
> Hope it helps you,
> --
> Cordialement,
> Natalya Rozhnova
>
> 03.10.2012, 21:44, "Rafael P B Mota" :
>
> Hello,
>
> I am trying to use a random delay (in receiver) before the packet is sent
> back to the sender agent. For example:
>
> 1) the receiver agent receive the sender packet
> 2) the receiver sets up a response packet
> 3) Wait for a random time (in ms)
> 4) sends the packet.
>
> I don't know how to do the step 3.
>
> I am pasting the code bellow: Somebody can help me ?
>
> void MyAgent::recv(Packet* pkt, Handler*)
> {
>hdr_ip* hdrip = hdr_ip::access(pkt);
>hdr_rfidPacket* hdr = hdr_rfidPacket::access(pkt);
>if (hdr->tipo_==1) {
>Packet* pktret = allocpkt();
> hdr_rfidPacket* hdrTag = hdr_rfidPacket::access(pktret);
> hdr_ip* hdrIp = hdr_ip::access(pktret);
> hdrTag->tagEPC_ = tagEPC_;
>hdrTag->id_ = hdr->id_;
> hdrTag->tipo_ = 0;
> hdrIp->daddr() = IP_BROADCAST;
> hdrIp->dport() = hdrip->sport();
> *//HOWTO WAIT A RANDOM TIME (in miliseconds) before send back the
> packet ??*
>
>send(pktret,0);
>}
>else {
> Packet::free(pkt);
>}
>Packet::free(pkt);
>return;
> }
>
> --
>
>
>
>
> Rafael Perazzo B Mota
> r afaelpera...@gmail.com
>
> Web-page: https://sites.google.com/site/rafaelperazzo/
> Doutorando em Ciência da Computação
> Universidade de São Paulo (USP)
> Campus da Capital
> Instituto de Matemática e estatística (IME)
>
>
>
> --
>
> --
>
>
> Rafael Perazzo B Mota
> r afaelpera...@gmail.com
> Web-page: https://sites.google.com/site/rafaelperazzo/
> Doutorando em Ciência da Computação
> Universidade de São Paulo (USP)
> Campus da Capital
> Instituto de Matemática e estatística (IME)
>
> --
>
>
--
Rafael Perazzo B Mota
r afaelpera...@gmail.com
Web-page: https://sites.google.com/site/rafaelperazzo/
Doutorando em Ciência da Computação
Universidade de São Paulo (USP)
Campus da Capital
Instituto de Matemática e estatística (IME)
--
Re: [ns] Random time to send a packet
Hello Natalya,
I tryed the solution:
srand(time(NULL));
int tempo = rand() % 400 + 100;
Scheduler& sch = Scheduler::instance();
sch.schedule(target_,pktret,tempo);
//send(pktret,0);
But the packet is not sent.
If I uncomment the line send(pktret,0) I get an error like this: Scheduler:
Event UID not valid!
What should I do ?
2012/10/3 Natalya Rozhnova
> Hi,
>
> There are two ways to do it. Try this way for example:
>
> Scheduler& sch = Scheduler::instance();
> sch.schedule(target_, [packet you want to send], [delay in ms]);
>
> The second way I don't remember exactly but it consists in using the
> function reschedule. You can read about these functions in detail in ns2
> manual.
>
> Hope it helps you,
> --
> Cordialement,
> Natalya Rozhnova
>
> 03.10.2012, 21:44, "Rafael P B Mota" :
>
> Hello,
>
> I am trying to use a random delay (in receiver) before the packet is sent
> back to the sender agent. For example:
>
> 1) the receiver agent receive the sender packet
> 2) the receiver sets up a response packet
> 3) Wait for a random time (in ms)
> 4) sends the packet.
>
> I don't know how to do the step 3.
>
> I am pasting the code bellow: Somebody can help me ?
>
> void MyAgent::recv(Packet* pkt, Handler*)
> {
> hdr_ip* hdrip = hdr_ip::access(pkt);
> hdr_rfidPacket* hdr = hdr_rfidPacket::access(pkt);
> if (hdr->tipo_==1) {
> Packet* pktret = allocpkt();
> hdr_rfidPacket* hdrTag = hdr_rfidPacket::access(pktret);
> hdr_ip* hdrIp = hdr_ip::access(pktret);
> hdrTag->tagEPC_ = tagEPC_;
> hdrTag->id_ = hdr->id_;
> hdrTag->tipo_ = 0;
> hdrIp->daddr() = IP_BROADCAST;
> hdrIp->dport() = hdrip->sport();
> *//HOWTO WAIT A RANDOM TIME (in miliseconds) before send back the
> packet ??*
>
> send(pktret,0);
> }
> else {
> Packet::free(pkt);
> }
> Packet::free(pkt);
> return;
> }
>
> --
>
>
> Rafael Perazzo B Mota
> r afaelpera...@gmail.com
>
> Web-page: https://sites.google.com/site/rafaelperazzo/
> Doutorando em Ciência da Computação
> Universidade de São Paulo (USP)
> Campus da Capital
> Instituto de Matemática e estatística (IME)
>
> --
>
>
--
Rafael Perazzo B Mota
r afaelpera...@gmail.com
Web-page: https://sites.google.com/site/rafaelperazzo/
Doutorando em Ciência da Computação
Universidade de São Paulo (USP)
Campus da Capital
Instituto de Matemática e estatística (IME)
--
Re: [ns] Random time to send a packet
Thanks for the response Christos!!
I tried the while solution with no success. Is there any way to wait, for
instance, 100ms, before the command send(pktret,0) is executed ? I guess
it's a simple issue, but until now I was not able to solve.
Does anyone can suggest something to do ?
Thanks all!!
2012/10/3 Christos Spatiotis
> -BEGIN PGP SIGNED MESSAGE-
> Hash: SHA1
>
> Hello , Rafael
>
> If you try to put send(pktret,0) in a "while" which run for a random
> time. I guess i do not know.
> Please let me know if you make it.
>
> On 10/03/2012 05:37 PM, Rafael P B Mota wrote:
> >
> > Hello,
> >
> > I am trying to use a random delay (in receiver) before the packet
> > is sent back to the sender agent. For example:
> >
> > 1) the receiver agent receive the sender packet 2) the receiver
> > sets up a response packet 3) Wait for a random time (in ms) 4)
> > sends the packet.
> >
> > I don't know how to do the step 3.
> >
> > I am pasting the code bellow: Somebody can help me ?
> >
> > void MyAgent::recv(Packet* pkt, Handler*) { hdr_ip* hdrip =
> > hdr_ip::access(pkt); hdr_rfidPacket* hdr =
> > hdr_rfidPacket::access(pkt); if (hdr->tipo_==1) { Packet* pktret =
> > allocpkt(); hdr_rfidPacket* hdrTag =
> > hdr_rfidPacket::access(pktret); hdr_ip* hdrIp =
> > hdr_ip::access(pktret); hdrTag->tagEPC_ = tagEPC_; hdrTag->id_ =
> > hdr->id_; hdrTag->tipo_ = 0; hdrIp->daddr() = IP_BROADCAST;
> > hdrIp->dport() = hdrip->sport(); *//HOWTO WAIT A RANDOM TIME (in
> > miliseconds) before send back the packet ??* send(pktret,0); } else
> > { Packet::free(pkt); } Packet::free(pkt); return; }
> >
>
>
> - --
> ===
> Undergraduate student Spatiotis Christos
> Department of Computer Engineering & Informatics (CEID)
> University of Patras, Greece
> e-mail: spati...@ceid.upatras.gr
> website: http://spatiotis.wordpress.com
>
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> Comment: Using GnuPG with Mozilla - http://www.enigmail.net/
>
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> sAvwTQeoyA+w2psIVdAObud+mhuYh1GMTIBHlTEmCOt/8nSCUVnswqQlbONAOx7Y
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>
--
Rafael Perazzo B Mota
r afaelpera...@gmail.com
Web-page: https://sites.google.com/site/rafaelperazzo/
Doutorando em Ciência da Computação
Universidade de São Paulo (USP)
Campus da Capital
Instituto de Matemática e estatística (IME)
--
[ns] Random time to send a packet
Hello,
I am trying to use a random delay (in receiver) before the packet is sent
back to the sender agent. For example:
1) the receiver agent receive the sender packet
2) the receiver sets up a response packet
3) Wait for a random time (in ms)
4) sends the packet.
I don't know how to do the step 3.
I am pasting the code bellow: Somebody can help me ?
void MyAgent::recv(Packet* pkt, Handler*)
{
hdr_ip* hdrip = hdr_ip::access(pkt);
hdr_rfidPacket* hdr = hdr_rfidPacket::access(pkt);
if (hdr->tipo_==1) {
Packet* pktret = allocpkt();
hdr_rfidPacket* hdrTag = hdr_rfidPacket::access(pktret);
hdr_ip* hdrIp = hdr_ip::access(pktret);
hdrTag->tagEPC_ = tagEPC_;
hdrTag->id_ = hdr->id_;
hdrTag->tipo_ = 0;
hdrIp->daddr() = IP_BROADCAST;
hdrIp->dport() = hdrip->sport();
*//HOWTO WAIT A RANDOM TIME (in miliseconds) before send back the
packet ??*
send(pktret,0);
}
else {
Packet::free(pkt);
}
Packet::free(pkt);
return;
}
--
Rafael Perazzo B Mota
r afaelpera...@gmail.com
Web-page: https://sites.google.com/site/rafaelperazzo/
Doutorando em Ciência da Computação
Universidade de São Paulo (USP)
Campus da Capital
Instituto de Matemática e estatística (IME)
--
[ns] Schedule an event
Hello,
I am trying to use a random delay (in receiver) before the packet is sent
back to the sender agent. For example:
1) the receiver agent receive the sender packet
2) the receiver sets up a response packet
3) Wait for a random time (in ms)
4) sends the packet.
I don't know how to do the step 3.
I am pasting the code bellow: Somebody can help me ?
void MyAgent::recv(Packet* pkt, Handler*)
{
hdr_ip* hdrip = hdr_ip::access(pkt);
hdr_rfidPacket* hdr = hdr_rfidPacket::access(pkt);
if (hdr->tipo_==1) {
Packet* pktret = allocpkt();
hdr_rfidPacket* hdrTag = hdr_rfidPacket::access(pktret);
hdr_ip* hdrIp = hdr_ip::access(pktret);
hdrTag->tagEPC_ = tagEPC_;
hdrTag->id_ = hdr->id_;
hdrTag->tipo_ = 0;
hdrIp->daddr() = IP_BROADCAST;
hdrIp->dport() = hdrip->sport();
send(pktret,0);
}
else {
Packet::free(pkt);
}
Packet::free(pkt);
return;
}
--
Rafael Perazzo B Mota
r afaelpera...@gmail.com
Web-page: https://sites.google.com/site/rafaelperazzo/
Doutorando em Ciência da Computação
Universidade de São Paulo (USP)
Campus da Capital
Instituto de Matemática e estatística (IME)
--
[ns] RFID and wifi - ns2
Hello ns-users, I have two questions about ns, maybe somebody can help me: 1)Is there any ns-2 extension that simulates a RFID system ? (tags and readers). If the answer is yes, where can I download ? 2) Is there any way to decrease the range of a wifi node ? (decrease the signal power) 3) Is there any way to set the maximum speed of a wifi node ? (for instance, max of 500Kbps) Thanks!! -- Rafael Perazzo B Mota r afaelpera...@gmail.com Web-page: https://sites.google.com/site/rafaelperazzo/ Doutorando em Ciência da Computação Universidade de São Paulo (USP) Campus da Capital Instituto de Matemática e estatística (IME) --
[ns] Wifi transmission power
Is there any way to restrict the transmit power (to lower the range) of wifi nodes ? How can I configure this ? In my cenario, the wifi nodes have a large range, but I am simulating RFID tags, so I need to limitate the range. Thanks -- Rafael Perazzo B Mota r afaelpera...@gmail.com Web-page: https://sites.google.com/site/rafaelperazzo/ Doutorando em Ciência da Computação Universidade de São Paulo (USP) Campus da Capital Instituto de Matemática e estatística (IME) --
Re: [ns] connect many nodes with "for" loop in tcl script
Thank you very much. It is working now!!
Rafael
2012/9/24 Newaz
> HI
>
> try this code. I am attaching.
>
>
> Regards
> Newaz
>
> On 24 September 2012 18:37, Rafael P B Mota wrote:
>
>>
>> Hello,
>>
>> I am trying to connect a node called $reader1 to 30 other nodes. I tryed
>> to
>> write a for statemant but it is not working.
>>
>>
>> This works: but with two nodes is very simple
>> $ns connect $reader1 $tag_1
>> $ns connect $reader1 $tag_2
>>
>> This is not working:
>> for {set i 1} {$i < $val(nn)} { incr i } {
>> $ns connect $reader1 $tag_$i
>> }
>>
>>
>> Error:
>>
>> can't read "tag_": no such variable
>> while executing
>> "$ns connect $reader1 $tag_$i"
>> ("for" body line 2)
>> invoked from within
>> "for {set i 1} {$i < $val(nn)} { incr i } {
>> $ns connect $reader1 $tag_$i
>> }"
>> (file "rfid4.tcl" line 118)
>>
>>
>> The tag_ var is created at:
>>
>> for {set i 1} {$i < $val(nn)} { incr i } {
>> set tag_$i [new Agent/RfidTag]
>> }
>>
>> What should I do ?
>>
>> --
>>
>>
>> Rafael Perazzo B Mota
>> r afaelpera...@gmail.com
>>
>> Web-page: https://sites.google.com/site/rafaelperazzo/
>> Doutorando em Ciência da Computação
>> Universidade de São Paulo (USP)
>> Campus da Capital
>> Instituto de Matemática e estatística (IME)
>>
>> --
>>
>>
>>
>>
>> --
>>
>>
>> Rafael Perazzo B Mota
>> r afaelpera...@gmail.com
>>
>> Web-page: https://sites.google.com/site/rafaelperazzo/
>> Doutorando em Ciência da Computação
>> Universidade de São Paulo (USP)
>> Campus da Capital
>> Instituto de Matemática e estatística (IME)
>>
>> --
>>
>
>
>
> --
>
>
> Newaz
>
> Phd Candidate.
> Broadband Network Lab(BNLab)
> room no:T240
> Building: Truth Hall
>
> Korea Advanced Institute of Science and Technology(KAIST)
> 119,Munjiro, Yuseong-gu, Daejeon,305-732, South Korea
>
>
--
Rafael Perazzo B Mota
r afaelpera...@gmail.com
Web-page: https://sites.google.com/site/rafaelperazzo/
Doutorando em Ciência da Computação
Universidade de São Paulo (USP)
Campus da Capital
Instituto de Matemática e estatística (IME)
--
[ns] connect many nodes with "for" loop in tcl script
Hello,
I am trying to connect a node called $reader1 to 30 other nodes. I tryed to
write a for statemant but it is not working.
This works: but with two nodes is very simple
$ns connect $reader1 $tag_1
$ns connect $reader1 $tag_2
This is not working:
for {set i 1} {$i < $val(nn)} { incr i } {
$ns connect $reader1 $tag_$i
}
Error:
can't read "tag_": no such variable
while executing
"$ns connect $reader1 $tag_$i"
("for" body line 2)
invoked from within
"for {set i 1} {$i < $val(nn)} { incr i } {
$ns connect $reader1 $tag_$i
}"
(file "rfid4.tcl" line 118)
The tag_ var is created at:
for {set i 1} {$i < $val(nn)} { incr i } {
set tag_$i [new Agent/RfidTag]
}
What should I do ?
--
Rafael Perazzo B Mota
r afaelpera...@gmail.com
Web-page: https://sites.google.com/site/rafaelperazzo/
Doutorando em Ciência da Computação
Universidade de São Paulo (USP)
Campus da Capital
Instituto de Matemática e estatística (IME)
--
--
Rafael Perazzo B Mota
r afaelpera...@gmail.com
Web-page: https://sites.google.com/site/rafaelperazzo/
Doutorando em Ciência da Computação
Universidade de São Paulo (USP)
Campus da Capital
Instituto de Matemática e estatística (IME)
--
