Energy Harvesting Networks

Abstract

In the era of big data, the rapid growth of data services is pushing forward the persistent evolution of wireless network designs to resolve new challenges such as spectrum efficiency, power consumption, quality‐of‐service (QoS), mobility. In particular, energy consumption issues become critical in many emerging wireless applications, for example, in Internet‐of‐Things (IoT), and motivate researchers to revisit the network designs which take the energy efficiency into consideration. Energy harvesting (EH) has recently been advocated as an alternative to perpetually power wireless nodes in the next‐generation wireless networks, especially for the networks that are confined by limited battery to affect the network lifetime or in the hazardous environments that are inconvenient to frequently replace batteries. The characteristics of various ambient energy sources are introduced with the focus of their impact on wireless communication designs, as compared with the conventional grid power supply. The design issues are then elaborated for various modern wireless networks, including cooperative networks, cognitive radio networks, vehicular networks, underwater networks, and unmanned aerial vehicle (UAV) networks. In particular, two examples regarding with the cooperative communications are provided to get more insight into the methodology for designing EH networks. The design challenges of the incorporation of EH into these wireless networks are highlighted in different EH environments from the underwater, ground to air.

Energy Harvesting Wireless Sensor Network (Eh-Wsn) Based Modified Negatively Correlated Search Algorithm For Non-Convex Optimization Problems

“…Despite the fact that, the energy harvesting method from the natural environment and the radio frequency signals is unstable, due to various factors [6][7]. Wireless Energy Transfer (WET) as a gracious method for transferring energy from some energy-rich sensor nodes to energy-hungry sensor nodes for enhancing overall network performance [8][9]. Capacity assignment problem is an important issue for designing EH-WSNs [10].…”