Centralized energy monitoring over wireless sensor networks

Wireless sensor networks (WSN) are one the most challenging field in computer and networking science. The energy management is a crucial issue on WSN since it has a real influence on a network lifetime. Since such networks are used for many sensitive applications, they may need to guarantee some Quality of Service requirements as continuous connectivity or continuous monitoring or balanced energy consumption over all network nodes. In this paper, we suggest a centralized approach which monitors the energy consumption of all nodes (in relation with their main activity: communication). We present an activity model of the network and evaluate how the remaining energy behaves. Our main objective is to predict (after a learning step) the energy consumption of all the nodes. Many techniques could be used to find a cure to such troubles (wake up sleeping neighbor nodes, increasing radio ranges of some neighbor nodes,. . . ).