Chapter 10 – Cognitive Services for the User

Publisher Summary This chapter provides an overview of several speech- and audio-processing technologies exploiting the voice and acoustic noise streams that are likely to be available to a software-defined cognitive radio (CR). An integrated approach to user authentication and architecture to enhance trusted radio communications networks has been presented. User authentication, via generalized biometrics, can be combined with other authenticators to provide a continuous, flexible, and strong system. This biometrically enhanced authentication system approach can be extended to become part of a CR system that learns about users, situations, and surroundings and takes appropriate proactive or reactive actions. The chapter presents generalized biometric authentication, where the user's distinctive behaviors and traits are learned and recognized. It also discusses that an advanced CR will capitalize on these technologies to learn about and take action based on user preferences, availability of resources, and other elements of the situation and environment. A high-impact implication of this technology is the ability to reduce the complexity of the man-machine interface with the radio.