Question

In ____ approach, transmitter and receiver are co-located.

(a) active self-location awareness

(b) passive self-location awareness

(c) active cooperative location awareness

(d) passive cooperative location awareness

The question was posed to me in an online quiz.

Origin of the question is Environment Awareness topic in section Location and Environment Awareness in Cognitive Radio of Cognitive Radio

Answer 1

Correct answer is (a) active self-location awareness

For explanation I would say: Self location awareness may be active or passive. In active self-location awareness, transmitter and receiver are used. The transmitter and receiver are co-located. Cognitive radar is an example of this approach.