Differences between Go-Back-N ARQ and Selective Repeat ARQ

Differences between Go-Back-N ARQ and Selective Repeat ARQ, Basic difference between go back ARQ and Selective repeat ARQ

Basic difference between go back ARQ and Selective repeat ARQ

GO BACK AND ARQ
SELECTIVE REPEAT ARQ
Go Back N ARQ is inefficient for noisy link.

Selective repeat ARQ is efficient for noisy links
Go Back N ARQ is less complicated than Selective repeat ARQ.

Selective Repeat ARQ is complicated
Go Back N ARQ Sender Window Size is 2^ (m)-1 and receiver window size is 1.

.in Sender and receiver Window Size is 2^ (m-1)
Go-Back-N ARQ is a specific instance of the automatic repeat request (ARQ) protocol, in which the sending process continues to send a number of frames specified by a window size even without receiving an acknowledgement (ACK) packet from the receiver. It is a special case of the general sliding window protocol with the transmit window size of N and receive window size of 1.
Selective Repeat ARQ / Selective Reject ARQ is a specific instance of the Automatic Repeat-Request (ARQ) protocol used for communications. It may be used as a protocol for the delivery and acknowledgement of message units, or it may be used as a protocol for the delivery of subdivided message sub-units.

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