I found a way to do that, if anybody is interested in it, I will be happy to help and share my experience about it :)

Hi, my tcl code doesn't go through the lines of remaining energy in my c++ code, I set a printf there, but it doesn't show any result, I added a break point there, when my code reach to that line, it says "segmentation fault !" and it goes to this line of energy- model.cc ""inline double energy() const { return energy_; }"" and it cannot continue anymore! :( I really got stuck there :( can I ask you to send me this part of your code in c++ ? BTW I added #include also, but still it doesnt work :(

I'll be so thankful If you could help me with it :)

I followed your code and still couldnt solve the debug problem... I do exactly what you did in your code, but the problem is remaining ....

I also took a look at this http://home.iitk.ac.in/~rajeevs/nshowto2.html, tried to include as did too, but nothing changed, just now while debugging it shows me another line of node.h file :

inline EnergyModel* energy_model() { return energy_model_; }

I there any Idea about it?

I found a way to do that, if anybody is interested in it, I will be happy to help and share my experience about it :)

Hi Elnaz Alizadeh,

Can you share the solution to obtain energy values?

U can be aware of remaining energy ,by calculating residual energy of the nodes , which u can check any time using awk script

Hi,

A segmentation fault occurs when a program attempts to access a memory location that it is not allowed to access, or attempts to access a memory location in a way that is not allowed (for example, attempting to write to a read-only location, or to overwrite part of the operating system).

On Unix-like operating systems, a signal called SIGSEGV is sent to a process that accesses an invalid memory address.

Make sure that you defined your Energy Model in TCL file. There is a simple TCL file to test your code. Also you can get MobileNodes initial energy IEnergy=INode->energy_model()->energy(); // double IEnergy;  MobileNode INode;

With best regards.

Hi,

I write the following example for changing AODV protocol to print mobile nodes energy and location.

1) in  ~/ns-2.35/aodv/aodv.h you define #include and declare the following variables in “protected” scope.

double xpos;

double ypos;

double zpos;

double iEnergy;

MobileNode *iNode;

2) You will initialize the variables that you have just declared in aodv.h. This we do in the AODV  ‘constructor’ (invoked only once during node creation).  

~/ns-2.35/aodv/aodv.cc

/* Constructor */

AODV::AODV(nsaddr_t id) : Agent(PT_AODV), btimer(this), htimer(this), ntimer(this), rtimer(this), lrtimer(this), rqueue()

{

  index = id;

  seqno = 2;

  bid = 1;

  xpos=0.0;

  ypos=0.0;

  zpos=0.0;

  MobileNode *iNode;

  iEnergy=0.0;

   LIST_INIT(&nbhead);

  LIST_INIT(&bihead);

  logtarget = 0;

  ifqueue = 0;

}

3) Print your variable in function AODV::forward or anywhere you want.

void AODV::forward(aodv_rt_entry *rt, Packet *p, double delay)

{

  struct hdr_cmn *ch = HDR_CMN(p);

  struct hdr_ip *ih = HDR_IP(p);

  iNode=(MobileNode *)(Node::get_node_by_address(index));

  xpos=iNode->X();

  ypos=iNode->Y();

  iEnergy=iNode->energy_model()->energy();

  printf("at Time (%.6f), Position of %d is X:%.4f and Y:%.4f \n",CURRENT_TIME,index,xpos,ypos);

  printf("at Time (%.6f), Updated Energy for Node %d is Energy %.4f \n",CURRENT_TIME,index,iEnergy);

if(ih->ttl_ == 0)

{

  #ifdef DEBUG

    fprintf(stderr, "%s: calling drop()\n", __PRETTY_FUNCTION__);   #endif // DEBUG

   drop(p, DROP_RTR_TTL);

  return;

}

4) Run TCL Script

Note : energyModel must be set in TCL file, in order to obtain node’s energy or energy model related information.

I wish this example is helpful for you.

With best regards.

Hi,

There are no automatic provisioning to print location or energy consumption for a given mobile node in ns2. However, using the tracefile generated using ns2, energy levels can be printed, but one should be good enough in processing a file using awk, python or any other scripts.

The following code will make you print the energy levels of node when you are using AODV Protocol.

Files to be modified:

1) ~ns-2.35/aodv/aodv.h

void info_print(nsaddr_t index);

in  ~/ns-2.35/aodv/aodv.h you define #include and declare the following variables in “protected” scope.

double xpos;

double ypos;

double zpos;

double iEnergy;

MobileNode *iNode;

2) ~ns-2.35/aodv/aodv.cc , Initialize variables in constructor

 xpos=0.0;

 ypos=0.0;

 zpos=0.0;

 MobileNode *iNode;

 iEnergy=0.0;

In the aodv.cc file, add the following entry anywhere, but probably after the end of rt_down() function.

void AODV::info_print(nsaddr_t index) {

FILE *fp;

fp = fopen("node_information.txt", "a");

iNode=(MobileNode *)(Node::get_node_by_address(index));

  xpos=iNode->X();

  ypos=iNode->Y();

  iEnergy=iNode->energy_model()->energy();

  fprintf(fp,"at Time (%.6f), Position of %d is X:%.4f and Y:%.4f \n",CURRENT_TIME,index,xpos,ypos);

  fprintf(fp,"at Time (%.6f), Updated Energy for Node %d is Energy %.4f \n",CURRENT_TIME,index,iEnergy);

fclose(fp);

}

The above function records the location and power levels in to a file called node_information.txt.

The above code creates a file pointer inturn a file called node_information.txt under append mode. prints location and power level information to the file with pointer fp and finally close the file pointer.

3) Finally the info_print() function have to be called. This can be called from anywhere. Here is the function call in aodv.cc file.

It is inside the void AODV::recvReply(Packet *p) {

//Make sure any node receives a reply to execute your code below

if (ih->daddr() == index) { // If I am the original source

// Update the route discovery latency statistics

// rp->rp_timestamp is the time of request origination

info_print(index); // print this nodes location and power levels

rt->rt_disc_latency[(unsigned char)rt->hist_indx] = (CURRENT_TIME - rp->rp_timestamp)

/ (double) rp->rp_hop_count;

// increment indx for next time

rt->hist_indx = (rt->hist_indx + 1) % MAX_HISTORY;

}

Once the above steps are done. Open the terminal and go to the ~ns-2.35. folder and type the following commands one by one prompt$] make

Once the compilation is successful, test any of the wireless tcl files with AODV protocol is the routing and run it using ns filename.tcl

I wish this example is helpful for you. (I write code with text editor, if there is any syntax error please fix)

With Best Regards.

i had gone through this link

http://elmurod.net/en/index.php/archives/348

but i can able to view only 10-15 lines of code  where can i get the complete code 

waiting for your reply -- thank u

https://ns2research.wordpress.com/2015/01/08/residual-energy-of-a-node/