[ns] 802.11 ad hoc throughput papers
Hello all, I am working with ns2 to simulate a mobile ad hoc network (802.11 ad hoc mode) and I am having trouble with overloaded wireless medium. Are you aware of papers that deal with data troughput measurements for MANETs with different message frequencies and device densities (experimental or simulation)? Sincerely, Peter -- Pt! Schon vom neuen GMX MultiMessenger gehört? Der kann`s mit allen: http://www.gmx.net/de/go/multimessenger01
[ns] problems with tkn package in ns-2
-- Forwarded message -- From: suvarna v Date: Mon, Apr 13, 2009 at 4:05 PM Subject: re To: ns-users@isi.edu hi all when i running TKN patch i got the errors like really i need your assistance thanks in advance num_nodes is set 5 wired node 0 created wired node 1 created wired node 2 created INITIALIZE THE LIST xListHead Base-Station node 3 created wireless node 0 created ... wireless node 1 created ... wireless node 2 created ... wireless node 3 created ... warning: Route to base_stn not known: dropping pkt warning: Route to base_stn not known: dropping pkt warning: Route to base_stn not known: dropping pkt warning: Route to base_stn not known: dropping pkt warning: Route to base_stn not known: dropping pkt warning: Route to base_stn not known: dropping pkt warning: Route to base_stn not known: dropping pkt warning: Route to base_stn not known: dropping pkt warning: Route to base_stn not known: dropping pkt warning: Route to base_stn not known: dropping pkt warning: Route to base_stn not known: dropping pkt warning: Route to base_stn not known: dropping pkt channel.cc:sendUp - Calc highestAntennaZ_ and distCST_ highestAntennaZ_ = 1.5, distCST_ = 550.0 SORTING LISTS ...DONE! warning: Route to base_stn not known: dropping pkt warning: Route to base_stn not known: dropping pkt warning: Route to base_stn not known: dropping pkt warning: Route to base_stn not known: dropping pkt warning: Route to base_stn not known: dropping pkt warning: Route to base_stn not known: dropping pkt warning: Route to base_stn not known: dropping pkt warning: Route to base_stn not known: dropping pkt warning: Route to base_stn not known: dropping pkt warning: Route to base_stn not known: dropping pkt warning: Route to base_stn not known: dropping pkt warning: Route to base_stn not known: dropping pkt warning: Route to base_stn not known: dropping pkt warning: Route to base_stn not known: dropping pkt warning: Route to base_stn not known: dropping pkt warning: Route to base_stn not known: dropping pkt warning: Route to base_stn not known: dropping pkt warning: Route to base_stn not known: dropping pkt warning: Route to base_stn not known: dropping pkt warning: Route to base_stn not known: dropping pkt warning: Route to base_stn not known: dropping pkt warning: Route to base_stn not known: dropping pkt warning: Route to base_stn not known: dropping pkt warning: Route to base_stn not known: dropping pkt warning: Route to base_stn not known: dropping pkt warning: Route to base_stn not known: dropping pkt warning: Route to base_stn not known: dropping pkt now 4096.01141225 Mac: 2 BackoffTimer::handle but no priority matches ?! stime_[0] 4096.01124225 rtime_[0] 120.00 AIFSwait_[0] 50.00
[ns] adding new protocol/agent
Hi Friends,
I am trying to add new protocol/agent for dummy RAM model but I am not able
to do it, I tried as per different example available on internet (
http://www.isi.edu/nsnam/ns/tutorial/nsnew.html) But still I am facing same
problem.
Please suggest me , What may be the problem
Still I am not able to find out a complete example which can show me full
running protocol in ns2.31, If anybody is having it Please help me ...
Thanks & Regards,
Udit Kumar
My ERROR Message : It seems this issue is comming from internal of the ns2 (
OR say linkage part)
can't read "debug_": no such variable
(Object set line 1)
invoked from within
"Classifier/Port set debug_"
invoked from within
"catch "$c set $var" val"
invoked from within
"if [catch "$self cmd $args" ret] {
set cls [$self info class]
global errorInfo
set savedInfo $errorInfo
error "error when calling class $cls: $args" $..."
(procedure "_o59" line 2)
(SplitObject unknown line 2)
invoked from within
"$agent target [[$self node] entry]"
(procedure "_o11" line 2)
(RtModule attach line 2)
invoked from within
"$m attach $agent $port"
(procedure "_o10" line 4)
(Node add-target line 4)
invoked from within
"$self add-target $agent $port"
(procedure "_o10" line 15)
(Node attach line 15)
invoked from within
"$node attach $agent"
(procedure "_o3" line 2)
(Simulator attach-agent line 2)
invoked from within
"$ns attach-agent $n0 $p0"
(file "ram.tcl" line 35)
[ns] Need your help
Hi Friends, I want to add new protocol in ns2 (2.31), And I tried as per http://www.isi.edu/nsnam/ns/tutorial/nsnew.html. But I am not able to run this successfully, It is showing me problem related with some syntax used in file given in above link. Can somebody help me on this. I need to model memory/ram protocol into ns2... Please help me...I will be very thankful of you... Thanks & Regards, Udit Kumar
Re: [ns] Issue with AppData and Packet::copy() in packet.h
Just solved it, for future reference here it is: You can't create your
object like this:
PacketData vodinfo(10);
It must be:
AppData* vodinfo = new PacketData (10);
After that, everything works fine.
Andre
On Apr 14, 2009, at 10:04 AM, Andre Reis wrote:
Greetings,
I'm having an issue at a lower level of ns2, version 2.31. In my
application, I create a PacketData object, and send a new packet with
an UDP agent, like this:
PacketData vodinfo(10);
agent_->sendmsg(size_, &vodinfo);
I don't even fill the data in the object yet. At some point in the
simulation, Packet::copy() is called, and the simulator breaks with a
'Could not access memory (EXC_BAD_ACCESS)', which occurs in line 643
in packet.h:
inline Packet* Packet::copy() const
{
Packet* p = alloc();
memcpy(p->bits(), bits_, hdrlen_);
if (data_)
p->data_ = data_->copy();<- fails here
p->txinfo_.init(&txinfo_);
return (p);
}
It would seem it cannot access 'p->data', which is a private AppData*
variable. Since this is so low-level in ns, I cannot imagine what the
cause of the problem might be.
Can someone provide some clues as to why this is happening?
With regards,
Andre Reis
[ns] wimax simulation at mac layer
hi can anybody tell me what are the effects of amending the trafic of wimax at mac layer wimax_v2.03 at http://ndsl.csie.cgu.edu.tw/download.php what parameters are effected by amending the trafic?
[ns] Issue with AppData and Packet::copy() in packet.h
Greetings,
I'm having an issue at a lower level of ns2, version 2.31. In my
application, I create a PacketData object, and send a new packet with
an UDP agent, like this:
PacketData vodinfo(10);
agent_->sendmsg(size_, &vodinfo);
I don't even fill the data in the object yet. At some point in the
simulation, Packet::copy() is called, and the simulator breaks with a
'Could not access memory (EXC_BAD_ACCESS)', which occurs in line 643
in packet.h:
inline Packet* Packet::copy() const
{
Packet* p = alloc();
memcpy(p->bits(), bits_, hdrlen_);
if (data_)
p->data_ = data_->copy();<- fails here
p->txinfo_.init(&txinfo_);
return (p);
}
It would seem it cannot access 'p->data', which is a private AppData*
variable. Since this is so low-level in ns, I cannot imagine what the
cause of the problem might be.
Can someone provide some clues as to why this is happening?
With regards,
Andre Reis
[ns] Tr : broadcast
- Message transféré De : Nour À : ns-users@isi.edu Envoyé le : Mardi, 14 Avril 2009, 9h46mn 06s Objet : broadcast Hello All Please how can i set a Broadcast address in wireless LAN. i want that a UDP agent attached to node0 broadcasts a 512K CBR packet to all the other nodes each 1 second. thanks Noura Ghali;
[ns] 802.11s in NS2
Hi, If anybody knows about the available patch or code for 802.11S in NS2 please let me know. Regards, Nill
Re: [ns] UMTS AKA PROTOCOL NS-2 CODE PROBLEM
Hi! There is a UMTS extension to ns-2 called EURANE (google for it), but I doubt it will solve your needs. Depending on your exact problem statement I question whether simulation is the right tool or not. If your task is to compare different security proposals for, say complexity, analysis might be a better option than simulation. If you on the other hand are looking for performance, then simulation _might_ be an option. "A problem well formulated is half solved", Good luck! Mats Folke florence rashidi wrote: > Hi > Iam a masters student at Huazhong University of science and > Technology in China. > Am doing my thesis on Security techniques in wireless cellular > network and one of my objectives > is to compare UMTS AKA protocol proposed by 3GGP with other UMTS AKA > protocol proposed by other researchers. > And am using NS-2 to do the simulation to compare then,now my problem > is to get the NS-2 code,am getting problem on how to write the NS-2 > code on the authentication process between the > UE-BS-RNC-VLR-HLR. > I real need ur assistance/help. > Thanks in advance. > Florence Rashidi -- Mats Folke, M.Sc., Lic.Eng. Research Engineer Ericsson AB Office: +46 10 7171385 Ericsson Research Fax: +46 920 99621 P.O. Box 920Mobile: +46 76 1271385 SE-971 28 Luleå Sweden
