2014 VLSI Design previous year questions

B.Tech EC 2014 VLSI Design previous year questions - MinMarks

Q.1 What type of language is VHDL ? Explain advantages and limitations of VHDL language.

Q.2 Implement the function of F by using CMOS transmission gate

$\mathrm{ \; F} = ABC + B\overline{C} + \overline{A}B.$

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WC 2014 Previous Year Questions (Wireless Communication)

B.Tech EC Wireless Communication (WC) 2014  Previous Year Questions - MaxMarks

 

Q.1  In a communication satellite link, the modulation scheme used in QPSK with a spectral efficiency of 1.85 b/s/Hz. Compute the maximum transponder channel capacity, assuming a 36 MHz transponder bandwidth.

Q.2Calculate the efficiency and spectral efficiency of the DS-CDMA system with an omnidirectional cell using the following data :

Bandwidth efficiency = 0.9,
Frequency reuse efficiency = 0.45,
Capacity degradation factor = 0.8,
Voice activity factor = 0.4,
information bit rate = 16.2 kbps,
E_b/I₀ = 7 dB,
One way system bandwidth = 12.5 MHz. Neglect other sources of interferences.


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