Program : Client Side : //.CLIENT SIDE (SELECTIVE REPEAT).// import import .* import java.io.* import java.text.* import import java.util.* public class cli /* OUTPUT ~]$ su Password: sinhgad]# javac ser. Sender maintains a list of sequence numbers that it is allowed to send (sender window). random error selective-repeat ARQ (SAW-ARQ) SR-ARQ Shannon limit syndrome. If the header of the frame allows k bits, the sequence numbers range from 0 to 2k – 1. automatic repeat request (ARQ) bit flip burst-error channel checksum cyclic. Since the sequence number to be used occupies a field in the frame, it should be of limited size. socket networking network udp protocol selective-repeat udp-server network-. Alice.java C An application program that uses the go-back-n reliable data transfer protocol to send and receive messages. To keep track of the frames, sender station sends sequentially numbered frames. A visual demonstration of SR protocol using UDP socket programming written in Java. Efficiency can also be improved by making use of the full-duplex line.

Efficiency can be greatly improved by allowing multiple frames to be in transit at the same time. It is slightly more complicated solely because it uses strategies, logics, etc. For sender, it is same as receiver which is N.

Only one frame at a time can be in transit. Difference between Selective Repeat and Go-Back- N sliding window protocol: Sliding window size of receiver is 1. With the use of multiple frames for a single message, the stop-and-wait protocol does not perform well.

Selective repeat arq program in java