ECE487 Study Guide - Quiz Guide: Selective Repeat Arq, Propagation Delay, Automatic Repeat Request

• School: University of Alberta
• Department: Electrical and Computer Engineering
• Course: ECE487

Document Summary

Your last name: ____________________ your fist name: _____________________ Due: thursday, feb. 6, 2020, 4:00 pm, in the assignment box at 2nd floor - pedway between. In q1~q3 of this assignment, we consider some extreme cases when the timer value is less than the round-trip propagation delay. In other words, the timer value is not appropriately set. We assume that the maximal number of retransmissions for each frame is infinite. Please note that the procedure in q1~q3 is not endless: the timer of a system using the stop-and-wait arq protocol has a time-out of 3 ms. The round trip propagation delay is 4 ms. we ignore other delay (and therefore, the transmission time of a frame can be infinitely small). Lecture 4 for delivery of two data frames. Also assume the first transmission attempt of the first data frame is corrupted. The number of bits in a sequence number is m=2.