Wireless Sensor Network

Battery Aware Hierarchical Wireless Sensor Network for Distributed Data Collection

Lifetime-Aware Hierarchical Wireless Sensor Network Architecture with Mobile Overlays — With power efficiency and lifetime awareness becoming critical design concerns, we focus on energy-aware design of different layers of the WSN protocol stack. In a RAW-07 conference paper, we presented and analyzed a hierarchical wireless sensor network with mobile overlays, along with a mobility-aware multi-hop routing scheme, in order to optimize the network lifetime, delay, and local storage size. Furthermore, we show how certain physical layer attributes may affect the overall network lifetime. More specifically, we have investigated how certain adaptive modulation schemes may affect overall energy balancing in the network and hence its lifetime. Finally, we investigate new lifetime models which can be used to obtain more practical design criteria for energy-aware system design.