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

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The basic difference between go back ARQ and Selective Repeat ARQ

GO BACK AND ARQ
SELECTIVE REPEAT ARQ
Go Back N ARQ is inefficient for a 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 the number of frames specified by a window size even without receiving an acknowledgment (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 acknowledgment of message units, or it may be used as a protocol for the delivery of subdivided message sub-units.

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