The Tastes of Apples? by comparing the bodies of Jiang Afa and Jiang Azhu. Be sure to cite specific examples from the text to support your thesis.
We venture beyond the “listen-before-talk” strategy that is common in many traditional cognitive radio access schemes. We exploit the bi-directional nature of most primary communication systems. By intelligently choosing their transmission parameters based on the observation of primary user (PU) communications, secondary users (SUs) in a cognitive network can achieve higher spectrum usage while limiting their interference to the PU.