Draw a space-time diagram of the communication process

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Reference no: EM13272498

A two-way link has a data rate of 40 kb/s while transmitting data in either direction, and a propagation delay of 20 milliseconds in each direction. A is sending frames of 1000 bits to B using stop-and-wait ARQ. A 160-bit acknowledgment frame is returned by B immediately after B receives a full frame of data. from A.
Define efficiency as the percentage of time that A is sending a frame of data. This ignores the additional inefficiency due to overhead in A's frames.

a) Draw a space-time diagram of the communication process.
b) What is the efficiency?

Reference no: EM13272498

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