Unformatted text preview: −4 for the communication channel. Repeat for a frame size of 512 bytes. (b) Repeat (a) for the Go-back-N ARQ if three-bit sequence numbering is used with frame size of 256 bytes assuming a bit error rate of 10 − 5 . Repeat (b) for the Selective Repeat ARQ. Question 4: Two neighboring nodes (A and B) use the selective-repeat ARQ with a 3-bit sequence and a window size of 4 at the transmitter and receiver. Assuming A is transmitting and B is receiving, show the content of the window and the positions of the respective pointers at both nodes A and B for the following succession of events. (a) Before A sends any frames. (b) After A sends frames 0, 1, and 2; B acknowledges 0 and 1, and both ACK’s are received by A. (c) After A sends frames 3, 4, and 5; B acknowledges 4, and the ACK is received by A....
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- Fall '10
- Network Protocols, 8 bytes, 16-bit, 3-bit, Selective Repeat ARQ, Go-Back-N ARQ