title: Adjusting the values of Pt_ and RXThresh_ variables for changing transmission range
body: <p>I am writing a new protocol. In which I have to change(increase and decrease) transmission range of nodes. </p>
  
  <p>Now I want to know, </p>
  
  <ol>
  <li>how I can hack into ns-2 to change transmission and reception range. </li>
  <li>how can i write code to change the range during run time? </li>
  </ol>
  
  <p>NB: From "indep-utils/propagation/threshold.cc", I have calculated the required values of "Pt_" and "RXThresh_"</p>