Research On Resource Allocation Algorithm In LTE System

In LTE spectrum bandwidth resources are very limited,so the rational allocation of bandwidth to achieve efficient use of resources has very important significance.Reasonable wireless network resource allocation scheduling,while addressing the interference problem between the network and improve efficiency to meet the needs of different users is very important for improving network performance through.Therefore,in order to meet the user's communications needs in the community better,the company especially set up the project,which focuses on the research on resource allocation algorithm in LTE system,to achieve the ultimate goal better in the form of a project.The main network environment of this project is a double heterogeneous network environment Macrocell and Femtocell composition;you can efficiently solve such a network of inter-cell interference present in the environment through resource scheduling policy.Resource scheduling policy of this project even if a reasonable allocation of resources utilization,and dig the inter-user interference,thus improving the quality of services to meet the business needs of the user.The project is divided into four stages: basic theory research and analysis,model building,and the algorithm design,project simulation experiment.The inner and outer layers to build the system model and hierarchical design resource scheduling algorithm,the algorithm performs scheduling in the inner and outer resources are allocated,so that overall system throughput amount guaranteed,effectively suppress inter-cell interference exists.Finally,by creating a system level simulation platform,three different comparison algorithm for the simulation results proved that the proposed method of data science and effectiveness of the proposed algorithm can significantly eliminate interference between layers,improve overall system performance.In the end,based on the analysis of proportional fairness algorithm and detailed derivation,the optimization algorithm is put forward from two aspects of user fairness and system throughput.The first one is to improve the throughput of the system by changing the algorithm,and increase the probability that the call channel is better.Another consideration is to delay the user's characteristics,increase the opportunity for users to be called long-term service,improve the fairness of users.Through the comparison between the improved algorithm and the classical algorithm,the effect of the improved algorithm on the performance of the system is observed.