Abstract
AbstractThe Internet of Things (IoT) will allow unprecedented connectivity among devices and is predicted to make our world smarter. However, due to battery constraints, energy efficiency of IoT with numerous smart devices is a key challenge. Simultaneous information and energy transfer (SIET) is a promising method to provide green energy for energy‐constrained wireless networks. This paper, for the first time, investigates the modeling and analysis of SIET in a network where IoT nodes are powered via IoT gateways. Specifically, a Ginibre point process that captures the repulsion between spatially distributed nodes is used to model the IoT gateway network. The goal of our work is to uncover a strategy to balance the trade‐off between power outage probability and transmission outage probability by a careful design of the power split ratio of SIET. To achieve that, we derive closed‐form expressions for these 2 probabilities in IoT for a practical case. The simulation results verify our theoretical results and illustrate the effects of different network parameters (eg, transmit power and density of gateways and signal‐to‐interference‐plus‐noise ratio threshold) on SIET.
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