During csma/ca it is still possible for two nodes' traffic to collide. if both nodes are sensing the communication streams to ensure that another node is not transmitting how can this be possible?

Respuesta :

Yes, during CSMA/CA it is still possible for two nodes' traffic to collide.

But it works on Collision Avoidance, in order to prevent collisions, Collision Avoidance (CSMA/CA) waits for a transmission signal before delivering data. The transmitter starts a counter with a random number if a signal is detected, then waits. The sender will try again as soon as this counter is depleted.

When two or more data packets are sent concurrently on a shared channel in CSMA, there is a probability of a collision. The collision prevents the receiver from receiving any data packets from the sender. Additionally, in order for the recipient to receive the lost information, it must be delivered again.

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