Chapter 15. Cognitive Radio Performance Analysis
James O. Neel
Cognitive Radio Technologies, LLCLynchburg, Virginia
Jeffrey H. Reed and Allen B. MacKenzie
Wireless @ Virginia Tech, Bradley Departmentof Electrical and Computer EngineeringBlacksburg, Virginia
Unlike traditional radios, cognitive radios (CRs) both react to and alter their operating environment. In isolation, this is not much of a problem, but when multiple CRs are present, each radio's adaptations change the observed state of the spectrum for the other radios, which in turn influences the adaptations of every other spectrum-agile radio. Such interactions could spawn infinite adaptation loops, drive the networks to unexpected self-jamming states, and lead to brittle ...