title: How to print collisions in real time on the OMNet ++ console?
body: <p>I am doing the geographic routing in VEINS. However, in a moment the message is not transmitted by a node.</p>
  
  <p>I suspect this is caused by a collision. I know that it is possible to take collision statistics at the end of the simulation.</p>
  
  <p>But, I was wondering if there is any method I can use to print the collision on the OMNeT ++ console in real time.</p>
  
  <p>Development environment used: SUMO 1.2.0, VEINS 5.0 and OMNet++ 5.5.1.</p>