Abstract
This papers investigates the effective control of electromagnetic radiation (EMR) in wireless adhoc communication networks. In particular, we focus on networks with wireless provision of energy, via the emerging technology of wireless power transfer (WPT). Our aim is to propose algorithmic methods towards optimizing the trade-off among the (potentially high) radiation levels in the network and the efficiency of power transfer. After formally defining EMR and relevant performance metrics, we critically discuss selected abstract radiation models (such as a well-studied scalar model) and identify their strengths and limitations. In particular, we highlight a recent vectorial representation of wireless power, which allows a very precise management of radiation, as well as a peer to peer model of wireless power exchange with negligible radiation levels. Under these models, we present selected algorithmic methods and heuristics for effective radiation control, such as adaptive schemes for charger configuration in highly mobile systems, the precise phase management of the wireless power waves and the evaluation and handling of overlaps in the wireless power transmission.
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