CStorage: Distributed Data Storage in Wireless Sensor Networks Employing Compressive Sensing

In this paper, we propose CStorage a fully distributed and efficient data storage scheme for wireless sensor networks (WSNs) based on compressive sensing (CS) techniques. CStorage requires much smaller number of transmissions compared to existing algorithms by exploiting the compressibility of the natural signals along with the broadcast property of wireless channels. In CStorage, after the probabilistic readings dissemination phase, each node obtains one compressed sample (measurement) of the network´s readings. Later, a data collector can query a small number measurements and recover all sensors´ readings employing CS. We find the optimal parameters of CStorage and evaluate its performance.