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ISRO EC 2018:Communication System Booster Quiz 3
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Question 1
The bit rate of QPSK is 90Mbit/s. The baud rate will be
Question 2
In a code-division multiple access (CDMA) system with N = 8 chips, the maximum number of users who can be assigned mutually orthogonal signature sequences is ________
Question 3
A memory less source limits n symbols each with a probability p. The entropy of the source as a function of n
Question 4
The capacity of a Binary Symmetric Channel (BSC) with cross-over probability 0.5 is ________
Question 5
A fair coin is tossed repeatedly until a ‘Head’ appears for the first time. Let L be the number of tosses to get this first ‘Head’. The entropy H(L) in bits is ________.
Question 6
The frequency range for satellite communication is
Question 7
The differential entropy H(X) of the uniformly distributed random variable X with probability density function fX(x)=
Question 8
A source generates eight equiprobable symbols. What would be the code length?
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May 29ESE & GATE EC