(c) Two sites separated by 100 km require a communication link to perform data communication. The link uses B8ZS line coding and implements a Stop-and-Wait ARQ. The signal propagation speed on the link is 2 x 108 m/s. Assume that the frame processing time and acknowledgement transmission time are very short and can be ignored. (i) A binary stream of 0011000000010000000001 is transmitted on the link, where the leftmost bit is transmitted first. Determine the signal waveforms. You may either draw the pulses or use 0, + and to indicates zero, positive and negative pulses, respectively. (ii) The link can operate at 50 Mbps or 100 Mbps. A test on the link has revealed that the frame error rate is 0.01 and 0.05 when the link operates at 50 Mbps and 100 Mbps respectively. The frame size is set to 1000 bits for the test. Determine which data rate setting for the link can lead to a higher link throughput when using Stop-and-Wait ARQ, and calculate the link throughput. (c) Two sites separated by 100 km require a communication link to perform data communication. The link uses B8ZS line coding and implements a Stop-and-Wait ARQ. The signal propagation speed on the link is 2 x 108 m/s. Assume that the frame processing time and acknowledgement transmission time are very short and can be ignored. (i) A binary stream of 0011000000010000000001 is transmitted on the link, where the leftmost bit is transmitted first. Determine the signal waveforms. You may either draw the pulses or use 0, + and to indicates zero, positive and negative pulses, respectively. (ii) The link can operate at 50 Mbps or 100 Mbps. A test on the link has revealed that the frame error rate is 0.01 and 0.05 when the link operates at 50 Mbps and 100 Mbps respectively. The frame size is set to 1000 bits for the test. Determine which data rate setting for the link can lead to a higher link throughput when using Stop-and-Wait ARQ, and calculate the link throughput