Tham khảo tài liệu 'communication systems engineering episode 2 part 1', kỹ thuật - công nghệ, cơ khí - chế tạo máy phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | Communication Systems Engineering Lectures 15 ARQ Protocols Eytan Modiano Automatic repeat request ARQ Break large files into packets Check received packets for errors Use a feedback channel to request retransmissions Retransmit packets containing errors packet I I ACK I Automatic Repeat ReQuest ARQ When the receiver detects errors in a packet how does it let the transmitter know to re-send the corresponding packet Systems which automatically request the retransmission of missing packets or packets with errors are called ARQ systems. Three common schemes - Stop Wait - Go Back N - Selective .
