Piezoelectric materials can be used to convert oscillatory mechanical energy into electrical energy. Energy harvesting devices are designed to capture the ambient energy surrounding the electronics and convert it into usable electrical energy. The design of energy harvesting devices is not obvious, requiring optimization procedures. This paper investigates the influence of pattern gradation usi...

The Wireless sensor networks have been deployed in an wide range of applications in environmental monitoring, target tracking, etc. The sensor networks have an major problem concerned with energy efficiency and lifetime of the network. The Energy consumed by the nodes should be less which prevents the earlier death of sensor nodes due to drained energy level. Several techniques have been used t...

Wireless sensor networks (WSNs) possess diverse traffic due to different monitoring tasks carried out by sensor nodes. Meanwhile, in energy harvesting WSNs, the main goal is to match energy consumption with the energy harvesting rate which is different from minimizing energy consumption in battery-powered WSNs. We propose a dynamic adaptive medium access control (MAC) algorithm in energy harves...

With the development of low power electronics and energy harvesting technology, selfpowered systems have become a research hotspot over the last decade. The main advantage of self-powered systems is that they require minimum maintenance which makes them to be deployed in large scale or previously inaccessible locations. Therefore, the target of energy harvesting is to power autonomous ‘fit and ...