EC GATE Communication Systems Online Test

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EC GATE Communication Systems 2017-04-12T19:37:37+00:00

Syllabus

Random signals and noise: probability, random variables, probability density function, auto correlation, power spectral density. Analog communication systems: amplitude and angle modulation and demodulation systems, spectral analysis of these operations, super heterodyne receivers; elements of hardware, realizations of analog communication systems; signal-to-noise ratio (SNR) calculations for amplitude modulation (AM) and frequency modulation (FM) for low noise conditions. Fundamentals of information theory and channel capacity theorem. Digital communication systems: pulse code modulation (PCM), differential pulse code modulation (DPCM), digital modulation schemes: amplitude, phase and frequency shift keying schemes (ASK, PSK, FSK), matched filter receivers, bandwidth consideration and probability of error calculations for these schemes. Basics of TDMA, FDMA and CDMA and GSM.

Analysis of Previous GATE Papers

Exam Year 03 04 05 06 07 08 09 10 11 12 13
1 Mark Questions 3 5 3 0 3 1 3 3 2 4 1
2 Mark Questions 14 10 7 14 11 11 6 4 4 3 5
Total Marks 31 25 17 28 25 23 15 11 10 10 11

 

Exam Year 2014 2015
Set Set 1 Set 2 Set 3 Set 4 Set 1 Set 2 Set 3
1 Mark Questions 3 3 4 3 2 1 2
2 Mark Questions 4 4 4 4 4 5 3
Total Marks 11 11 12 11 10 11 8

 

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