Arq Official

ARQ increases latency due to retransmissions, making it less suitable for real-time applications like VoIP.

ARQ is an indispensable tool for achieving reliable digital communication. While Stop-and-Wait is efficient for simple, low-delay networks, Go-Back-N and Selective Repeat are essential for modern high-speed networks. The hybrid approach (HARQ) offers the best balance of efficiency and reliability in modern wireless scenarios. ARQ increases latency due to retransmissions, making it

An Adaptive Type-I1 hybrid ARQ/FEC Protocol - Clemson University The hybrid approach (HARQ) offers the best balance

The receiver sends an ACK to confirm the successful receipt of a packet. If a frame is lost, the receiver discards

) 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)