A classification of solutions for the energy limitation in Wireless Sensor Networks

Wireless Sensor Networks (WSNs) have known a tremendous and accentuated development in recent past and in present. Because in almost all applications the sensors must be autonomous, the lifetime of a WSN highly depends on the sensors´ energy. The main limitation in designing and developing a WSN is the energy problem since battery replenishment or replacement is difficult or impossible. This paper presents an overview on the solutions for the energy limitation. The energy consumption sources are outlined.