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Which among the following is not used to characterize air interface mode?

(a) Frequency band

(b) RF Access

(c) Modulation type

(d) Bandwidth

The question was posed to me during an interview.

This intriguing question comes from Radio Resource Analysis topic in portion Software Defined Radio Architecture of Cognitive Radio

1 Answer

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Best answer
Right choice is (b) RF Access

The best explanation: Efficiency of spatial use is estimated by link budget. The efficiency of spectrum usage can be computed from frequency band, modulation type, and bandwidth of air interface mode. Noise figure and range variations are also included in the computation of link budget.

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