Question

Explain how multiple users can transmit their information on the same channel without interfering with each other. Explain three techniques for doing this. Sketch the ASK signal in the time domain of the following digital signals: (i)10101100 (ii)01010011 (iii) 11100101 (iv)11011001 Sketch the PSK signal in the time domain of the following digital signals: (i)10011011 (ii)10100101 (iii) 01011001 (iv)10001000 )Sketch the UNIPOLAR signal in the time domain of the following digital signals: (i)11011001 (ii)01101100 (iii) 11001111 (iv)01010101 Sketch the Return-to-Zero (RZ) signal in the time domain of the following digital signals: (i)11010001 (ii)10101101 (iii)10101100 (iv)10010001

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