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Research On New Generation Wireless Communication Network Optimization Based On Energy Cooperation

Posted on:2019-01-20Degree:MasterType:Thesis
Country:ChinaCandidate:Y JiangFull Text:PDF
GTID:2428330566482883Subject:Electronic and communication engineering
Abstract/Summary:PDF Full Text Request
With the arrival of the era of big data,people's sense of acquisition and well-being in material and spiritual aspects has increased,and the demand for various services in the field of communications has become increasingly diversified.A large number of smart devices,smart industries,and smart services continue to emerge and access wireless communication networks.This has led to further expansion of the wireless communication network's energy needs and is facing severe challenges.Valuable low-frequency resources have already been used,high-frequency resources are very difficult to develop,and the shortage of spectrum resources is getting worse.In order to effectively solve the shortage of spectrum resources and excessive energy consumption in the cellular network,this paper proposes a new wireless communication network model based on energy collaboration to significantly increase the energy efficiency of the original network and the utilization of spectrum resources.In cellular networks,we use base station sleep technology to shut down idle base stations and base stations operating in low load conditions,reducing the increased energy costs of the network due to its own circuit processing and other factors.We use energy harvesting technology to collect clean energy such as wind energy and solar energy in nature and store it in base station batteries to provide sufficient energy requirements for base station systems.In different geographical environments,the distribution of natural resources is not the same,and the rate at which the base station energy collector collects energy from the natural world is not the same,and the rate at which base stations in different wor king states consume energy is also different.In a certain period of time,the rate at which the base station energy collector collects energy exceeds the consumption rate of the base station energy,and the collected energy overflows from the base station battery,resulting in a large amount of wasted energy.Because of the lack of energy,high-load base stations need to purchase energy from the traditional grid,which increases the cost of communications operations.In order to avoid this phenomenon,through the cooperation among the base stations,the excess energy of the storage battery in the base station system is transferred to other high-load and high-load base stations for use,so as to increase the efficiency of clean energy use and reduce the production of energy by conventional energy suppliers and suppliers to generate carbon dioxide and other gas emissions.In order to ensure the quality of service of the users in the dormant cell and improve the communication experience rate of line-of-sight users,we effectively combine the cellular network with D2 D communication.In the cell,we use spectrum sensing technology to detect the spectrum holes for D2 D users,find and reuse the cellular subcarriers that are most favorable for D2 D user communication from the spectrum holes to establish D2 D communication links,and release the spectrum when D2 D communication is completed.D2 D communication has completely changed the previous transmission mode in which the communication between the device and the device must be relayed through the base station system or the relay network.D2 D communication saves half of the spectrum resources compared to the cellular communication,greatly improves the spectrum efficiency of the cellular network and increases the throughput of the communication system.The quantity further strengthens the security and confidentiality of the communications network.
Keywords/Search Tags:Energy cooperation, Base station sleeping technology, Energy harvesting, D2D communication, Spectrum sensing
PDF Full Text Request
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