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

15.1. Introduction

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 ...

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