Higher bandwidth–delay products require larger window sizes (GBN/SR) to maintain high throughput. 5. Hybrid ARQ (HARQ)
) before needing an ACK. If a frame is lost, the receiver discards all subsequent frames, and the sender must retransmit all frames starting from the lost one. Better utilization than Stop-and-Wait. Cons: High retransmission overhead in poor channels. 3.3. Selective Repeat ARQ (SR) the receiver discards all subsequent frames
To help me make this paper more relevant to your needs, could you tell me: the receiver discards all subsequent frames
The receiver sends an ACK to confirm the successful receipt of a packet. the receiver discards all subsequent frames
The sender transmits one frame and waits for an ACK before sending the next. Pros: Simple implementation.