Wireless Sensor Networks
During the 1990s, given the advancement in wireless technology and microcontroller (MCU)-based single-board computers (SBCs), researchers started to develop networks of wireless-enabled MCU-based SBCs interacting with sensors. These networks became known as wireless sensor networks (WSNs). In a decade, several technologies became available, for example, U.C. Berkeley iMotes and Crossbow Mica2/Z. WSNs have environmental monitoring applications (Mainwaring, Polastre et al. 2002; Culler, Estrin et al. 2004) allowing data collection with finer spatial and temporal resolution.