| 41. | Which of the following is not a category of space diversity technique? |
| Discuss |
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Answer: (b).Time diversity
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| 42. | In selection diversity, the gain of each diversity branch provides different SNR. |
| Discuss |
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Answer: (b).False
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| 43. | Polarization diversity uses the ________ as the diversity element. |
| Discuss |
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Answer: (c).Reflection coefficient
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| 44. | Which of the factor does not determine the correlation coefficient? |
| Discuss |
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Answer: (d).Coherence time
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| 45. | Frequency diversity is implemented by transmitting information on more than one ___________ |
| Discuss |
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Answer: (a).Carrier frequency
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| 46. | Frequency diversity uses ________ as a diversity element. |
| Discuss |
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Answer: (c).Coherence bandwidth
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| 47. | Frequency diversity is good for low traffic conditions. |
| Discuss |
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Answer: (b).False
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| 48. | Time diversity repeatedly transmits information at time spacings that exceed ___________ |
| Discuss |
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Answer: (d).Coherence time
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| 49. | In maximal ratio combining, the output SNR is equal to __________ |
| Discuss |
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Answer: (c).Sum of individual SNR
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| 50. | In CDMA spread spectrum systems, chip rate is less than the bandwidth of the channel. |
| Discuss |
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Answer: (b).False
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