Energy Efficiency Optimization for Ubiquitous Power Internet of Things

Abstract

Abstract In the research of internet of things, considering power allocation of base station from the perspective of energy efficiency (EE) is very meaningful for ubiquitous power internet of things (UPIoT) optimization. In this paper, the EE of UPIoT was analyzed and a new method for internet optimization was proposed by adjusting the small cell transmits power. First, the UPIoT was modeled by two-tier homogeneous Poisson point process (PPP), and the coverage probability of base stations in each tier was derived. Second, according to the definition of EE, and the closed-form of EE was given by deriving the total power consumption and total throughput of UPIoT respectively. At last, the impact of the small cell transmission power on the EE of UPIoT was analyzed, and a small cell power optimization algorithm was proposed to maximize EE. Simulation results show that, the transmission power of cell has a significant impact on the EE of UPIoT. Furthermore, by optimizing the transmission power of small cell, the EE of UPIoT can be improved effectively.