Energy-harvesting cognitive radios in smart cities

Abstract

In this chapter, we combine two important techniques, which are cognitive radio (CR) and energy harvesting (EH), to realize a smart city. We first study solutions to overcome the challenges for a smart city and investigate cognitive radio sensor networks (CRSNs), their Internet connection, and application of harvesting methods in CRSN domain. Furthermore, we reveal the motivations for spectrum-aware and self-sustaining communications in a smart city. In the light of these discussions, we study a networking architecture of Internet of Things (IoT) consisting of energy-harvesting cognitive radios (EH-CRs), i.e., Energy-Harvesting Cognitive Internet of Things. By using this architecture, we also propose a general implementation framework for EH-CRs for the smart city concept.