Hi,

In ns3 wifi scripts for detecting number of collisions i have seen people incrementing a certain variable on PhyRxDrop trace, i see problem in this approach as this trace callback function is called for each node, meaning if a collision is detected in three nodes then three times variable would increment so we need to extract timestamp and node id at collision time to determine if this is to be considered a single collision or any new one. Is there any approach more efficient than this. (I know that we can add PhyRxDrop trace at node level then still we need to add timestamp to each of the node's trace to track collisions occurring at the same time as a single collision.

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