ENERGY-AWARE COMPRESSIVE SENSING

摘要

This invention concerns an energy-aware compressive sensing approach (ECSA)for rechargeable wireless sensor networks (WSN), for instance to capture high frequency micro-climate signals. In a first aspect the invention is a rechargeable wireless sensor network. The rechargeable wireless sensor network comprises plural distributed sensor nodes that are each configured to harvest energy from local renewable energy resources. They also operate to periodically switch on and employ compressive sensing techniques to collect data samples representing a sensed phenomenon. The compressive sensing employs a sparse projection matrix. In other aspects the invention is a method for operating the network, software for performing the method, and a sensor node for such a network.