Question

Why should a cognitive radio be capable of differentiating “User” and “Things” entities?

(a) To properly filter the signals

(b) To offer different levels of priority

(c) To amplify the signals

(d) To re-direct the signals

The question was posed to me during an interview.

This intriguing question originated from Architecture Maps in chapter Cognitive Radio Architecture of Cognitive Radio

Answer 1

Right choice is (b) To offer different levels of priority

To explain: The architecture model builds an environment consisting of world, cognitive radio, and a world model within the cognitive radio. The world is composed of entities such as user, home network, people, things, networks, etc. The cognitive radio must be capable differentiating these entities to respond in accordance to pre-determined priority levels.