ABSTRACT
Wireless sensor networks (WSNs) have revealed their vast potential in a plethora of applications. This chapter focuses on energy-efficient routing designs that have self-adaptivity by jointly considering multiple factors, including node residual power, wireless link condition, data fusion, and sensory information. It discusses energy-aware, channel-aware, fusion-aware, and information-aware adaptive routing protocols, with a focus on their design philosophy, advantages, drawbacks, and performance. The chapter offers a comprehensive overview of the adaptive routing techniques proposed in the literature. Routing is a key component of a WSNs for information gathering and critical in energy conservation. Many energy-aware approaches have been proposed toward efficient routing for WSNs. To adapt to the system dynamics, these techniques have jointly considered information, including node residual energy, link condition and modulation, data fusion strategy, and application requirements in routing decisions. The chapter provides an overview for channel-aware routing designs in WSNs.
