Question 1 : Symbol error probability can also be determined using upper bound.
1. True
2. False
3.
4.
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Question 2 : For neyman pearson decision criterion, which are important?
1. Probability of false alarm
2. Probability of miss
3. Probability of false alarm & miss
4. None of the mentioned
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Question 3 : If coherence bandwidth is smaller than the bandwidth of the signal, _____ fading occurs.
1. Flat
2. Frequency selective
3. Fast fading
4. Time selective
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Question 4 : Which signal sets are called as equivalent signal sets?
1. Simplex
2. Bi-orthogonal
3. Simplex & Bi-orthogonal
4. None of the mentioned
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Question 5 : Coherence time is _______ to Doppler spread.
1. Directly proportional
2. Inversely proportional
3. Not dependent
4. None of the mentioned
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Question 6 : When transmitter and receiver moves towards each other, the magnitude of frequency shift is
1. Positive
2. Negative
3. Zero
4. Infinity
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Question 7 : If signalling rate is less than fading rate, _____ fading occurs.
1. Slow
2. Fast
3. Time selective
4. None of the mentioned
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Question 8 : When channel coherence time is less than the time duration of a transmission symbol, then ______ fading occurs.
1. Fast
2. Slow
3. Time selective
4. None of the mentioned
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Question 9 : Interleaving does
1. Forward error correction
2. Backward error correction
3. Forward & Backward error correction
4. None of the mentioned
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Question 10 : The parameters used to describe large scale fading are
1. Reference distance
2. Path loss exponent
3. Standard deviation of random variable
4. All of the mentioned
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