Arq [ESSENTIAL]

The choice of ARQ protocol involves trade-offs between complexity and efficiency:

Automatic Repeat Request (ARQ): Reliable Data Transmission 1. Introduction The choice of ARQ protocol involves trade-offs between

ARQ increases latency due to retransmissions, making it less suitable for real-time applications like VoIP. The choice of ARQ protocol involves trade-offs between

Requires complex buffering and ordering at the receiver. 4. Performance Considerations The choice of ARQ protocol involves trade-offs between

The receiver sends an ACK to confirm the successful receipt of a packet.

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.