2. Spectrum Resource Management for CRSNs

The coexistence of various overlapping wireless applications causes severe inter-network interference to each other and leads to increasingly poor network performance. It motivates researchers to find new solutions for wireless sensor networking. The emergence of CRSN is a consequent result, which attracts growing attentions from both the academia and industry and experiences rapid development during the recent years. But different from traditional cognitive radio networks (CRNs), the integration of CR and WSN poses some new challenges in CRSNs. One of the most critical challenges is to design energy-efficient spectrum resource management solutions for CRSNs by taking the energy consumption and network characteristics of WSNs into consideration. To accelerate the flourish of CRSN applications, researchers have devoted great efforts on tackling this critical and urgent challenge. In this chapter, we provide a comprehensive review on the state-of-the-art research literature, which covers most of existing works in energy-efficient spectrum resource management in CRSNs, including dynamic spectrum access decision, secure cooperative spectrum sensing and spectrum resource allocation.