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Energy Efficiency Optimization For Unmanned Aerial Vehicle Communication Based On Interference Alignment

Posted on:2020-08-15Degree:MasterType:Thesis
Country:ChinaCandidate:M R YangFull Text:PDF
GTID:2392330590996821Subject:Computer Science and Technology
Abstract/Summary:PDF Full Text Request
Mobile Internet and smart devices are driving the development of wireless data services,which has led to researches on 5G cellular wireless networks.The evolving 5G wireless network provides higher data rates for wireless communications,which not only enhances the quality of the user experience,but also reduces end-to-end latency and consumes less energy.With the increasing demand for data transmission and different types of data from different fields,unmanned aerial vehicles have gradually entered people's field of vision,becoming a new type of data transmission method and data acquisition technology.At the same time,the rapid development of communication network technology and information technology,as well as the diversity of modern social information and large-scale communication areas has limited the reconnaissance,surveillance and target tracking tasks of a single unmanned aerial vehicle.Therefore,a single unmanned aerial vehicle can not meet today's needs for communication,and the cooperative mission mode of multiple unmanned aerial vehicles will become the main working form in the future.In this scenario,interference and energy limitation of unmanned aerial vehicle are the main problems in the system,which will greatly reduce the performance of the system.In order to adapt to various system models of wireless communication,we considered two types of unmanned aerial vehicle communication models.One is a symmetric model of full unmanned aerial vehicle communication,and the other is asymmetric communication with unmanned aerial vehicle relays.In order to effectively eliminate interferences,our system introduces interference alignment technology.Interference alignment is a promising technique,and when the feasible conditions are met,the application of interference alignment can effectively eliminate interference in the wireless network.On the other hand,as the concept of green communication becomes more and more important,the energy limitation problem of unmanned aerial vehicles has become a research hotspot in wireless communication.Therefore,we propose a novel wireless energy harvesting scheme based on interference alignment that optimizes energy efficiency while eliminating interference.In the proposed scheme,we first apply the antenna selection method to select some antennas on the relay unmanned aerial vehicle to meet the feasible conditions of interference alignment.These antennas apply power splitting technology to decode information and simultaneously collect energy.The remaining antennas only perform energy harvesting.Based on two different system models,we analyze the feasibility according to Bezout's theory.And we apply our optimization scheme in two system structures.A large number of simulation results demonstrate the effectiveness of the proposed energy-optimization scheme based on interference alignment.
Keywords/Search Tags:Interference Alignment, Energy Harvesting, Power Splitting, Antenna Selection, Unmanned Aerial Vehicle Communication
PDF Full Text Request
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