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Communications
Analog Communication Systems
Marks 1Marks 2
Digital Communication Systems
Marks 1Marks 2Marks 8Marks 10
Random Signals and Noise
Marks 1Marks 2Marks 4
Fundamentals of Information Theory
Marks 1Marks 2
Noise In Digital Communication
Marks 1Marks 2
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1
GATE ECE 1988
MCQ (Single Correct Answer)
+2
-0.6
In a digital communication system, transmissions of successive bits through a noisy channel are assumed to be independent events with error probability p. The probability of at most one error in the transmission of an 8 - bit sequence is
A
$$7\left( {1 - p} \right)/8 + p/8$$
B
$${\left( {1 - p} \right)^8} + 8p{\left( {1 - p} \right)^7}$$
C
$${\left( {1 - p} \right)^8} + {\left( {1 - p} \right)^7}$$
D
$${\left( {1 - p} \right)^8} + p{\left( {1 - p} \right)^7}$$
2
GATE ECE 1987
MCQ (Single Correct Answer)
+2
-0.6
Companding in PCM systems leads to improved signal - to - quantization noise ratio. This improvement is for
A
lower frequency components only
B
higher frequency components only
C
lower amplitudes only
D
higher amplitudes only
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Questions Asked from Marks 2
GATE ECE 2025 (1) GATE ECE 2016 Set 1 (2) GATE ECE 2015 Set 2 (1) GATE ECE 2015 Set 1 (2) GATE ECE 2014 Set 4 (2) GATE ECE 2014 Set 2 (1) GATE ECE 2013 (1) GATE ECE 2012 (2) GATE ECE 2011 (2) GATE ECE 2010 (2) GATE ECE 2009 (2) GATE ECE 2008 (1) GATE ECE 2007 (5) GATE ECE 2006 (2) GATE ECE 2005 (3) GATE ECE 2004 (1) GATE ECE 2003 (2) GATE ECE 2001 (1) GATE ECE 1999 (2) GATE ECE 1988 (2) GATE ECE 1987 (1)
GATE ECE Subjects
Signals and Systems
Network Theory
Control Systems
Digital Circuits
General Aptitude
Electronic Devices and VLSI
Analog Circuits
Engineering Mathematics
Microprocessors
Communications
Electromagnetics