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Recent questions tagged basic-electrical-rhythm
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GATE ECE 2014 Set 1 | Question: 51
Let $Q(\sqrt{\gamma})$ be the BER of a BPSK system over an AWGN channel with two-sided noise power spectral density $N_{0}/2.$ The parameter $\gamma$ is a function of bit energy and noise power spectral density. A system with two independent and identical ... both the channels. If the BER of this system is $Q( b \sqrt{\gamma})$ then the value of $b$ is _____.
Milicevic3306
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Communications
Mar 26, 2018
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Milicevic3306
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gate2014-ec-1
numerical-answers
communications
digital-modulation
basic-electrical-rhythm
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GATE ECE 2013 | Question: 49
Bits $1$ and $0$ are transmitted with equal probability. At the receiver, the pdf of the respective received signals for both bits are as shown below. The optimum threshold to achieve minimum bit error rate $(BER)$ is $\frac{1}{2} \\$ $\frac{4}{5} \\$ $1\\$ $\frac{3}{2} $
Milicevic3306
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Communications
Mar 26, 2018
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Milicevic3306
15.8k
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77
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gate2013-ec
communications
digital-modulation
basic-electrical-rhythm
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3
GATE ECE 2013 | Question: 48
Bits $1$ and $0$ are transmitted with equal probability. At the receiver, the pdf of the respective received signals for both bits are as shown below. If the detection threshold is $1,$ the $BER$ will be $\frac{1}{2} \\ $ $\frac{1}{4} \\$ $\frac{1}{8} \\$ $\frac{1}{16}$
Milicevic3306
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Communications
Mar 26, 2018
by
Milicevic3306
15.8k
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58
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gate2013-ec
communications
basic-electrical-rhythm
digital-modulation
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