Fundamentals of Communications and Networks in the Networks and Communication Department Tutorial

Exploring various encoding schemes and signal codes, such as Unipolar, NRZ-L, NRZ-I, Manchester, and Differential Manchester, along with practical exercises like extracting clock information and data sequences from Manchester-encoded streams. The tutorial covers topics like delta modulation, encoding data using MFSK, and more in the field of networks and communication.

• Communications
• Networks
• Encoding Schemes
• Signal Codes
• Delta Modulation

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1. 1 NET 222: COMMUNICATIONS AND NETWORKS FUNDAMENTALS (PRACTICAL PART) Networks and Communication Department Tutorial 3

2. Plan 2 This Week 8 Week 9 Week 10 Week 11 Week 12 tutorial 2 tutorial 3 lab 4,5 + revision Evaluation 2 on lab 4,5 Quiz tutorial 1 , 2 , 3 Networks and Communication Department

3. Q 1 3 Assume a data stream is made of ten alternate 0 s & 1 s. Encode this stream, using the following encoding schemes. Unipolar, NRZ-L, NRZ-I, Manchester, Differential Manchester Networks and Communication Department

4. Rules 4 Networks and Communication Department

5. S 1 5 Networks and Communication Department

6. Q 2 6 Sketch the signal waveforms when 00110101 is transmitted in the following signal codes. i) NRZ L ii) Manchester Code Networks and Communication Department

7. S 2 7 Networks and Communication Department

8. Q3 8 For the Manchester encoded binary stream of the following, extract the clock information and the data sequence. Networks and Communication Department

9. S3 9 1 0 1 0 0 1 1 1 0 0 1 Networks and Communication Department

10. Q4 10 The analog waveform shown in the following figure is to be delta modulated. The sampling period and the step size are indicated by the grid. The first DM output is also shown. Give the DM output for the complete signal. Networks and Communication Department

11. S4 11 Networks and Communication Department

12. Q5 12 Given the bit pattern 101001000011, encode this data using MFSK assume each signalling element represents with 3-bits. ? Networks and Communication Department

13. S5 13 Answer : 2^3 , M= 8 Networks and Communication Department

14. Q 5.1 14 Which of the signals of Table 5.2 use differential encoding Networks and Communication Department

15. S6 15 Answer: NRZI, Differential Manchester. Networks and Communication Department

16. Q 5.11 16 Given the bit pattern 01100, encode this data using ASK, BFSK, and BPSK. Networks and Communication Department

17. S 5.11 17 Networks and Communication Department

18. The End 18 Any Questions ? Networks and Communication Department