Advanced Mobile Communication

MJ

Answer Question One and any other TWO questions

 

QUESTION ONE (COMPULSORY)-30MKS

  1. Define the following terms as used in mobile communication (4 marks)
  2. Fading
  3. Doppler Shift
  • Modulation
  1. Line Coding
  2. Distinguish between Digital and Analog Communication technologies (4 marks)
  3. Explain how the following Wireless Communication Systems work            (8 marks)
  4. Codeless telephones
  5. Cellular telephone systems
  • Hand-held walkie-talkies
  1. Wireless keyboard and mouse
  2. Describe four Multiple Access Techniques used in mobile communication (8 marks)
  3. Outline six features of a 3 G Wireless Systems (6 marks)

 

QUESTION TWO (20 MARKS)

  1. Explain the steps involved in making a cellular telephone call (8 marks)
  2. Using a suitable diagram, describe the structure of a communication system

(12 marks)

 

QUESTION THREE (20 MARKS)

  1. Describe Four Conceptual Layers in a Wireless Network (8 marks)
  2. Using a suitable diagram, describe the basic mobile communication structure

(8 marks)

  1. Explain two advantages of modulation (4 marks)

 

QUESTION FOUR (20 MARKS)

  1. Analyze Three radio transmission techniques (6 marks)
  2. Explain Four Wireless Transmission Protocols used in mobile communication

(8 marks)

Describe three basic methods of propagation

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