Given the following digital data stream:

1 0 0 1 1 0 1 1 0 0 0 0 0 0 0 0 1 1 1 0 1 1 1 1

(a) Draw a diagram showing the data stream if unipolar signaling is being used to transmit the data.

(b) Draw a diagram showing the data stream if bipolar AMI signaling is being used to transmit the data.

Problem 2

(a)Draw the Non-Return to Zero - Invert (NRZ-I), Manchester, and Differential Manchester encoding for the following bit pattern:

1 1 1 0 1 0 1 0 0 0 0 1

Assume for the NRZ-I and Differential Manchester cases that the signal level starts with a negative value.

(b) Determine the data sequence for the following waveform assuming:

(1) Manchester encoding (2) Differential Manchester encoding

Problem 3 Given a channel that can pass signals with frequencies ranging between 5000 and 10000 Hz.

(a) What is the maximum theoretical signaling rate for this channel?

(b) What is the maximum theoretical data rate for this channel if the signal transmitted over this channel has 32 levels?

(c) What is the maximum data rate for this channel if the channel has a signal to noise ratio of 20 DB?

(d) What is the actual data rate for this channel if a 2400 Baud signal with four states is sent?