The Research Of Algorithm On Energy Harvesting Nodes Transmit Power Configuration

In recent years, wireless communications network especially the mobile network has got fast development. There is a significant upgrade and expansion of network performance and scale. At the same time, the energy consumption of wireless communications is also a corresponding increase in worldwide energy shortage today, energy consumption has become a hot issue in the communications industry. Currently, the whole world is promoting the concept of green communications. The development of energy harvesting wireless network has become a feasible way to alleviate this problem.This paper focuses on the research of planning the energy legitimately transformed from renewable resource harvested by network nodes and deploying the optimal transmission strategy to achieve efficient energy utilization and optimal transmission performance in the wireless network system with energy harvesting function. The main research contents are as follows:First of all, do a brief description of the green communication, introduce the structure, classification and characteristics of energy harvesting wireless network, point out the research purpose of this subject, highlight the value of this research.Secondly, analyze a single channel communication model of energy harvesting, analyze the relationship between transmit power and channel capacity. Considering the instability of energy and battery with a limited capacity constraint, establish a discrete time model of status on arrival energy. In order to achieve throughput maximization or transmission completion time minimization, an optimal transmit power allocation algorithm was researched, finally simulate the algorithm and prove it.Thirdly, analyze a dual-channel communication model of energy harvesting, analyze the influence on transmission minimum completion time by different amounts of information sent by two channels. As the same considering the instability of energy and battery with a limited capacity constraint, a transmit power allocation algorithm based on optimal transmit power allocation algorithm of single channel communication system and referring water-filling algorithm was researched. Finally simulate the algorithm and prove it.At last, in the energy harvesting wireless networks, consider the battery with a limited capacity constraint and data buffer with a limited capacity constraint, analyze the single channel system and discrete time model about energy and information, then a transmit power deployment strategy of channel throughput maximum was researched. Finally simulate the algorithm and prove it.