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CS601 Data Communication Assignment 3 Solution - Fall 2016

Question No. 1
 
For Digital to Digital Encoding, different techniques are used in data communication.  You are required to select and write all those techniques from the following which are used for Digital to Digital Encoding:
 

1. Differential Manchester 
   
2. Amplitude Shift Keying
   
3. NRZ-I
   
4. Frequency Shift Keying
   
5. Frequency Modulation
   
6. Frequency Reducing Key
   
7. NRZ
   
8. Time division multiplexing
   
9. Frequency Division Multiplexing
   
10. Phase Modulation
    
11. Bi phase 
    
12. Amplitude modulation
    
13. HDB3
    
14. Quadrature Amplitude Modulation
    
15. Manchester Encoding Scheme
    
16. 4 PSK
    
17. Asynchronous TDM
    
18. Phase Shift Keying
    
19. ATM 
    
20. AMI 
    

Solution

For solving question 1, please refer to the article Data Conversions and Encoding Techniques

All data conversion types and encoding techniques are categorized and listed in the article. 

Question No. 2 Solution

For calculating baud rate, see the following example from CS601 Data Communication handouts, Page 93

Example:
A constellation diagram consists of eight equally spaced points on a circle. If bit rate is
4800 bps, what is the Baud Rate?

Solution:
Constellation indicates 8 PSK with the points 45 degree apart
Baud Rate= 4800 / 3 = 1600 baud  
 

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