Finding Energy, node position and speed in AODV - NS2 Tutorial # 11.1

AODV - Part 2

Finding the node position, energy and speed of the node while it is forwarding a packet.

By default, these codes are not there in AODV, so we are going to modify or append in AODV protocol..

Steps
Step 1:

Open aodv.h and aodv.cc, these two files will be modified

Step 2:

Declare variables in aodv.h file in protected mode


double xpos,ypos,zpos,energy_t;

int n_speed;

MobileNode *t_node;

FILE *fp;


Step 3:

initialize these values inside the constrctor of aodv.cc file


xpos=ypos=zpos=0.0;

n_speed=0;

energy_t=0.0;

fp=fopen("runtime.dat","w");

Step 4:

add the following statements to the forward() function of aodv.cc

fprintf(fp,"Position is X, Y, Z, Node Speed,Energy\n");

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

((MobileNode*) t_node)->getLoc(&xpos,&ypos,&zpos);

fprintf(fp,"%d %f %f %f",index,xpos,ypos,zpos);

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

n_speed=((MobileNode*)t_node)->speed();

energy_t=t_node->energy_model()->energy();

fprintf(fp,"%d %d %f\n",index,n_speed,energy_t);


After the above step,

Step5:

recompile ns2 using the command

$] make

Step 6:

run a TCL File and check for the runtime.dat file in the same folder.

$] ns AODV.tcl

You will get a file called as runtime.dat in the same folder.

use the file for plotting any characteristics.

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T S Pradeep Kumar