Question

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

a.

Frequency band

b.

RF Access

c.

Modulation type

d.

Bandwidth

Posted under Cognitive Radio

Answer: (b).RF Access 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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Q. Which among the following is not used to characterize air interface mode?

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