Cognitive Radio Architecture: The Engineering Foundations of Radio XML

Chapter 5. COGNITIVE RADIO ARCHITECTURE

Architecture is a comprehensive, consistent set of design rules by which a specified set of components achieves a specified set of functions in products and services that evolve through multiple design points over time [144]. This chapter develops the CRA by which SDR, sensors, perception, and AML may be integrated to create AACRs with better QoI through capabilities to observe (sense, perceive), orient, plan, decide, act, and learn in RF and user domains, transitioning from merely aware or adaptive to demonstrably cognitive radio.

This chapter develops five complementary perspectives of architecture. CRA I defines six functional components, black boxes to which are ascribed first level functions common to AACR design points from SDR to iCR and among which critical interfaces are defined. CRA II examines the flow of inference through a cognition cycle that arranges the core capabilities of iCR in temporal sequence for both logical flow and circadian rhythm for the CRA. CRA III examines the related levels of abstraction for AACR to sense elementary sensory stimuli and to perceive QoI-related aspects of a <Scene/> consisting of the <User/> in an <Environment/> that includes <RF/>. CRA IV examines the mathematical structure of this architecture, identifying mappings among topological spaces represented and manipulated to preserve set-theoretic properties. Finally, CRA V briefly reviews SDR architecture, sketching an evolutionary path from the ...