Pure Aloha problem example
This example belongs to Pure Aloha Protocol. As the name suggests pure aloha is the original version of the aloha protocol. Following is the procedure in pure aloha for communication.
When a network station needs to send the frame, it sends immediately and waits for the acknowledgment.
If the sender receives an acknowledgment, the sender may send the next frame.
If no acknowledgment sender assumes the frame has been garbled and retransmit the same frame after a random time to avoid collision again.