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Q#1
Digital Communication
GATE EC 2025
MCQ
+2 marks
-0.66 marks
A source transmits symbol that takes values uniformly at random from the set . The receiver obtains , where is a zero-mean Gaussian random variable independent of . The receiver uses the maximum likelihood decoder to estimate the transmitted symbol .
Suppose the probability of symbol estimation error is expressed as follows:
where denotes the probability that exceeds 1.
What is the value of ?
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Browse Practice Questions by Chapters / Topics in Browse Practice Questions by Chapters / Topics in GATE Electronics and Communications
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| Topic | Questions | Attempted | Correct | |
|---|---|---|---|---|
| Network Analysis | 273 | 0 | 0 | |
| Electronic Devices | 69 | 0 | 0 | |
| Analog Electronics | 395 | 0 | 0 | |
| Digital Electronics | 351 | 0 | 0 | |
| Signals and Systems | 22 | 0 | 0 | |
| Control Systems | 224 | 0 | 0 | |
| Communication System | 200 | 0 | 0 | |
| EMFT - ECE | 14 | 0 | 0 | |
| Engineering Mathematics | 24 | 0 | 0 | |
| General Aptitude | 30 | 0 | 0 |