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020001T203092001

PART C
Answer any two full questions, each carries 20 marks.
With the help of an example, explain the Hamming code generation process for a 4-bit

data word.

Discuss the advantages and disadvantages of wireless communication.

A bit stream 100111001 is transmitted using the standard CRC method. The generator
polynomial is ഗി. Generate the transmitted code word.

What is switching? Differentiate between circuit switching, message switching and
packet switching.

Explain the features of BCH codes and RS codes.

What are cyclic codes? Give examples. What are the properties of cyclic codes? Also
explain the encoding steps of cyclic codes.

Describe any three GSM services.

Discuss the significance of a generator matrix and a parity check matrix.

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