STUPIDSID
1 (a)
Explain Shanon Hartley Theorem.
5 M
1 (b)
Discuss the significance of Eye Pattern.
5 M
1 (c)
Explain Viterbi Algorithm.
5 M
1 (d)
Compare ISI and ICI.
5 M
2 (a)
State and prove Sampling Theorem for low pass signal.
10 M
2 (b)
Derive an expression for entropy.
A Gaussian channel has 2MHz bandwidth. Calculate the channel capacity if the signal power to noise spectral density ratio is 105 Hz. Also find the maximum information rate.
A Gaussian channel has 2MHz bandwidth. Calculate the channel capacity if the signal power to noise spectral density ratio is 105 Hz. Also find the maximum information rate.
10 M
3 (a)
Why line codes are required for digital communication? Draw the following line code formats for the given data format 01101001.
(i) Polar RZ.
(ii) RZ-AMI
(iii) Unipolar NRZ
(iv) Differential Manchester.
(i) Polar RZ.
(ii) RZ-AMI
(iii) Unipolar NRZ
(iv) Differential Manchester.
10 M
3 (b)
Draw the block diagram of QASK transmitter and receiver and explain its functioning.
10 M
4 (a)
Compare the following:
(i) BPSK and DPSK.
(ii) Systematic and Non systematic codes.
(i) BPSK and DPSK.
(ii) Systematic and Non systematic codes.
10 M
4 (b)
Derive an expression for probability of error of a matched filter.
10 M
5 (a)
Explain syndrome decoding for Cyclic Codes.
10 M
5 (b)
Draw the encoder for a (7,4) cyclic Hamming code generated by the generator polynomial G(D) = 1 + D + D3.
10 M
6 (a)
Draw the block diagram of M Ary FSK transmitter and receiver and explain the working.
10 M
6 (b)
An error control code has the following parity check matrix.
\(= \begin{bmatrix}
1 &0 &1 &1 &0 &0 \\1
&1 &0 &0 &1 &0 \\0
&1 &1 &0 &0 &1
\end{bmatrix}\)
(i) Determine the generator matrix G.
(ii) Find the code words that begin with 101.
(iii) Decode the receive code word 110110.
10 M
Write short notes on:
7 (a)
Equalization.
7 M
7 (b)
Bit Synchroniser.
7 M
7 (c)
CRC codes.
7 M
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