Question

Which among the following is true about passive sensing configuration?

(a) Transmitter location is unknown

(b) Receiver location is unknown

(c) Base station location is unknown

(d) Operational area is unknown

I had been asked this question during an internship interview.

Question is taken from Next Generation Wireless Network topic in portion Next Generation Wireless Network of Cognitive Radio

Answer 1

The correct choice is (d) Operational area is unknown

To explain I would say: Mobile transmitter, fixed receiver configuration includes active and passive meteorological and Earth exploration system. In passive sensing configuration, the operational area is unknown. In the active sensing configuration, the transmitter location is unknown.