Topic: Communication Systems
Match the following:
A. Gaussian distribution
B. Rayleigh distribution
C. Poisson distribution
D. Uniform distribution
1. Calls on a telephone channel
2. Random number
3. Thermal noise
4. Fading channel in wireless communication
- A. A-3, B-1, C-4, D-2
- B. A-3, B-4, C-2, D-1
- C. A-1, B-4, C-3, D-2
- D. A-3, B-4, C-1, D-2
Answer: D. A-3, B-4, C-1, D-2
Explanation: Rayleigh distribution is used in mobile computing for flat fading channel.
Poisson distribution is applied when events can't be counted in whole numbers, occurrences are independent, and the average frequency of occurrence is known (e.g., calls on a telephone channel).
Gaussian distribution is used for most of the natural events like thermal noise.