[ns] segmentation fault when increase number of nodes
Hello, I've change code in c++,everything is run normal but when i increase number of nodes,it state "segmentation fault".Can anyone tell me what is the cause of this error? Kindly Regards, chalida
[ns] how to set Pt_consume in wireless-phy.cc
Dear all, Can anyone tell me how to what's the difference between Pt_ and Pt_consume in wireless-phy.cc under mac folder and how to change these two value. Best Regards, chalida
Re: [ns] change transmission power in ns
How to set related parameter correctly?Please kindly help Best Regards On Wed, Apr 11, 2012 at 7:00 PM, CHALIDA wrote: > Dear all, > do you know how to change an tranmitted power in ns2?If i change it,any > other parameters have to change also i.e range threshold? > > Best Regards > chalida > >
[ns] Floating exception
*Dear all,* *I have edit some path in routing protocol and when i run tcl scrip,it give this error "Floating exception".It happen only when I use more number of nodes i.e.40-50 but it can run normal when use 20 nodes.Could anyone tell me how to trace where is this error?* * * *Best Regards* *chalida*
[ns] elect a route in multiple interface
Dear all, Can you give me some example how to select a route for multiple interface in ns? Best Regards Chalida
[ns] printing routing table on file
Dear All,
Could you guide me how to change sprintf to print and keep in file
instead.I try to chabge but it's not work.
OLSR::command(int argc, const char*const* argv) {
.
else if (strcasecmp(argv[1], "print_rtable") == 0) {
if (logtarget_ != NULL) {
sprintf(logtarget_->pt_->buffer(), "P %f _%d_ Routing Table",
CURRENT_TIME,
OLSR::node_id(ra_addr()));
logtarget_->pt_->dump();
rtable_.print(logtarget_);
}
void
OLSR_rtable::print(Trace* out) {
sprintf(out->pt_->buffer(), "P\tdest\tnext\tiface\tdist");
out->pt_->dump();
for (rtable_t::iterator it = rt_.begin(); it != rt_.end(); it++) {
OLSR_rt_entry* entry = (*it).second;
sprintf(out->pt_->buffer(), "P\t%d\t%d\t%d\t%d",
OLSR::node_id(entry->dest_addr()),
OLSR::node_id(entry->next_addr()),
OLSR::node_id(entry->iface_addr()),
entry->dist());
out->pt_->dump();
}
}
Best Regards,
chalida
[ns] configure node for heterogeneous technologies in ns2
Dear all, Can anyone tell me how to configure node to support multiple interface i.e wifi and wimax and let node select which interface they will forward a packet? What is a necessarily configulation(patch,installation,file,..) Best Regards, Chalida
[ns] time series prediction
Dear all, Could anyone tell me how to predict a future value from a time series in ns2? how to modify a code? Best Regards, Chalida
[ns] configure olsr for multiple interface
Dear all, Could someone tell me how to configure olsr protocol for multiple interface?I understand that a configuration has to deal with mid message but I don't know which part that I need to modify in olsr.cc.I'm not familiar with c++ programming. Best Regards Chalida
[ns] wimax patch
Dear all, Can someone provide me a wimax patch for ns2.34 that can install successful? Regards,
[ns] energy model in ns2
Dear all, Could someone tell me how to add energy model for new format of trace file,I have an example to add the model in tcl script like set opt(energymodel)EnergyModel ; set opt(radiomodel) RadioModel ; set opt(initialenergy) 1000;# Initial energy in Joules -energyModel $opt(energymodel) \ -idlePower 1.0 \ -rxPower 1.0 \ -txPower 1.0 \ -sleepPower 0.001 \ -transitionPower 0.2 \ -transitionTime 0.005 \ -initialEnergy $opt(initialenergy) but when i add it for olsr protocol is not work. Normally the trace file using new trace will get sth like this s -t 0.000169789 -Hs 0 -Hd -1 -Ni 0 -Nx 333.43 -Ny 322.49 -Nz 0.00 -Ne > -1.00 -Nl RTR -Nw --- -Ma 0 -Md 0 -Ms 0 -Mt 0 -Is 0.255 -Id -1.255 -It > OLSR -Il 48 -If 0 -Ii 0 -Iv 32 -P olsr -Pn 1 -Ps 0 [-Pt HELLO -Po 0 -Ph 0 > -Pms 0] when adding that model.The trace file change to s 0.044156336 _1_ MAC --- 1 OLSR 106 [0 1 800] [energy > 1000.00 ei 0.000 es 0.000 et 0.000 er 0.000] --- [1:255 -1:255 32 > 0] [1 0 [HELLO 1 0 0]] > N -t 0.044157 -n 12 -e 999.954995 where ei=energy of idle (joules) es=energy of sense et = energy of transmitting and er=energy of receive if i configure to use new trace,it got > s -t 0.000169789 -Hs 0 -Hd -1 -Ni 0 -Nx 37.09 -Ny 422.33 -Nz 0.00 -Ne > 1000.00 -Nl RTR -Nw --- -Ma 0 -Md 0 -Ms 0 -Mt 0 -Is 0.255 -Id -1.255 > -It OLSR -Il 48 -If 0 -Ii 0 -Iv 32 -P olsr -Pn 1 -Ps 0 [-Pt HELLO -Po 0 -Ph > 0 -Pms 0] > N -t 0.000545 -n 15 -e 999.998607 I understand that -Ne field is when the node send/receive some data and -e is some time after when the node doesn't exchange data. Best Regards, Chalida
[ns] how to measure energy consumption
Dear everyone, i've load an example for measuring energy comsumption but i'm wondering about a trace file.what dose it means when the trace state "s -t 0.182646019 -Hs 3 -Hd -1 -Ni 3 -Nx 342.85 -Ny 419.96 -Nz 0.00 -Ne 19.998848 -Nl RTR -Nw --- -Ma 0 -Md 0 -Ms 0 -Mt 0 -Is 3.255 -Id -1.255 -It message -Il 32 -If 0 -Ii 2 -Iv 32 and N -t 0.182961 -n 1 -e 19.998848" what the different between this two line value, Another thing is the value getting from this tcl is it a comption in sending and receiving per link or not? thank you Best Regards Chalida
[ns] residual energy
Hello, Any one know how to find a residual energy left for each node in network using awk?D i need to add energy model in tcl script to find it? Regards, Chalida
Re: [ns] urgently need help on tcl&awk file
I'm not sure that do i need to attach evry node with agent or only a source and destination only. best regards, Chalida On Thu, Nov 24, 2011 at 9:19 PM, CHALIDA SRIPRECHANUN wrote: > Hello > I'm a new user of ns2 and I need your guys help on it.I'd like to define > topology from 5 node in olsr,aodv,dsdv protocol and compare performance > i.e. throughput,delay.However the result it really strange as it show > throughput=-0.06 and delat parameter of those three file are almost the > same.I;m not sure what did i do wrong.Can you help me solve this problem? > > best regards, > Chalida >
[ns] urgently need help on tcl&awk file
Hello I'm a new user of ns2 and I need your guys help on it.I'd like to define topology from 5 node in olsr,aodv,dsdv protocol and compare performance i.e. throughput,delay.However the result it really strange as it show throughput=-0.06 and delat parameter of those three file are almost the same.I;m not sure what did i do wrong.Can you help me solve this problem? best regards, Chalida
