Investigating Data Similarity and Estimation Through Spatio-Temporal Correlation to Enhance Energy Efficiency in WSNs
Alia Ghaddar, Tahiry Razafindralambo, Isabelle Simplot-Ryi, David Simplot-Ryl, Samar Tawbi and Abbas Hijazi
Wireless sensor networks are of energy-constrained nature, which calls for energy efficient protocols as a primary design goal. Thus, minimizing energy consumption is a main challenge.We are concerned in how collected data by sensors, can be processed to increase the relevance of certain mass of data and reduce the overall data traffic. Since sensor nodes are often densely deployed, the data collected by nearby nodes are either redundant or correlated. One of the great challenges for the aforementioned problem is to exploit temporal and spatial correlation among the source nodes. Our work is composed of two main tasks: 1- A predictive modeling task that aims to capture the temporal correlation among collected data. 2- A data similarity detection task that measures the data similarity based on the spatial correlation.
Keywords: Wireless sensor networks; Time series forecasting; Data aggregation; Data similarity; Redundancy; Spatial correlation; Temporal correlation.