MCQOPTIONS
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MCQOPTIONS
This section includes 9 Mcqs, each offering curated multiple-choice questions to sharpen your Wireless & Mobile Communications Questions & Answers Parameters of Mobile Multipath Channels knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
_______ is a statistical measure of time duration over which channel impulse response is invariant. |
| A. | Coherence time |
| B. | Doppler spread |
| C. | Mean excess delay |
| D. | Rms delay spread |
| Answer» B. Doppler spread | |
| 2. |
Doppler spread is a range of frequencies over which received Doppler spread is _______ |
| A. | Zero |
| B. | Non zero |
| C. | Infinite |
| D. | One |
| Answer» C. Infinite | |
| 3. |
Which of the following describes time varying nature of the channel in a small scale region? |
| A. | Delay spread and coherence time |
| B. | Coherence bandwidth and delay spread |
| C. | Doppler spread and coherence time |
| D. | Delay spread and doppler spread |
| Answer» D. Delay spread and doppler spread | |
| 4. |
Coherence bandwidth is a statistical measure of range of frequencies over which channel is considered _______ |
| A. | Time dispersive |
| B. | Frequency selective |
| C. | Time variant |
| D. | Flat |
| Answer» E. | |
| 5. |
______ and coherence bandwidth are inversely proportional to one another. |
| A. | Rms delay spread |
| B. | Mean excess delay |
| C. | Excess delay spread |
| D. | Doppler spread |
| Answer» B. Mean excess delay | |
| 6. |
Which of the following is the first moment of the power delay profile? |
| A. | Rms delay spread |
| B. | Excess delay spread |
| C. | Mean excess delay |
| D. | Doppler spread |
| Answer» D. Doppler spread | |
| 7. |
_______ is the square root of the second central moment of the power delay profile. |
| A. | Mean excess delay |
| B. | Rms delay spread |
| C. | Excess delay spread |
| D. | Coherence time |
| Answer» C. Excess delay spread | |
| 8. |
Which of the following is not a multipath channel parameter that can be determined from power delay profile? |
| A. | Mean excess delay |
| B. | RMS delay spread |
| C. | Excess delay spread |
| D. | Doppler spread |
| Answer» E. | |
| 9. |
Power delay profile is represented as plots of __________ with respect to fixed time delay reference. |
| A. | Relative received power |
| B. | Frequency |
| C. | Transmitted power |
| D. | Relative power |
| Answer» B. Frequency | |