Research On Multi Hop Routing Algorithm For LTE-D2D Networks

The generation of mobile communication technology makes our life more convenient and fast.With the number of users increase exponentially,the wireless spectrum resource constraints contradiction is increasingly prominent.In order to alleviate this contradiction,it is a topic that the scholars devote themselves to improving the spectrum utilization of the mobile communication system.D2D(device-to-device)communication,the technology of mobile terminal communication directly,has become a focus.D2D communication is a new direct communication technology based on mobile cellular network,which can realize the direct data transmission under the control of cellular network.Research results show that the introduction of D2D technology to the cellular mobile communication system can not only improve the spectrum utilization rate,reduce the burden on the base station,but also reduce the terminal energy consumption.The biggest difference between this kind of end to end short distance communication technology and WiFi or other communication technology is that the licensed frequency band.The interference is controllable,and the data transmission is more reliable.At present,the research of D2D communication is mainly focused on the single hop scenario.In this paper,the D2D communication system is analyzed based on multi hop routing algorithm in LTE network.According to the content of the study,the paper will be arranged as follows:This paper firstly outlines the background of D2D communication technology,including the history and development of cellular mobile communication,and the network architecture,key technology and technology requirements of LTE.At the same time,the paper expounds the concept and advantages of D2D communication,and the difference of the existing communication technology.This paper expounds the advantages when introduces this technology in the mobile communication network.Subsequently,this paper presents a method for improving the quality of edge users in the case of the traditional cellular service quality.Through the research on the proper,the communication quality is improved,and the edge users are accessed the cellular network through D2D relay in the case of the low interference.Finally,this paper verifies the theoretical analysis through MATLAB simulation platform.The simulation results can be seen that the D2D multi hop routing algorithm can effectively improve the communication quality of the cell edge users,and then improve the capacity of the cell.