Research On Coordinated Multiple Points Technologies Based On Heterogeneous Cellular Network

The new generation of mobile wireless communication is slowly entering civil lives,and its technical standards are mading in full swing.In order to meet the demand of increasing the data rate of the communication system,using high frequency electromagnetic wave has become an inevitable trend.To adapt to this trend,the overall structure of the new generation of mobile wireless communication network will also change from huge scale to small.Heterogeneous communication based on cellular networks can make up for the disadvantages of this change.The structure of cellular network is becoming more and more complex,meanwhile,how to allocate system resources reasonably in heterogeneous network has become one of the most important problems.This paper revolves around the heterogeneous cellular network,which is carried out by improving the capacity of the commucation system,increasing the number of accessing users and controlling the power of the system.The research contents of this paper are showed as following aspects:This paper has built a heterogeneous cellular network system model based on traditional cellular system,analyzes the gain in system performance in scenarios with varying degrees of heterogeneity.Research on the influence of coordinated multiple points technology on the performance of heterogeneous cellular network system.It derives the formulation of system capacity with using Co MP,analyzes the impact of Co MP on the electromagnetic radiation of heterogeneous cellular network.Based on the idea of fair cooperation between users and base stations,this paper proposed a coordinated base stations scheduling scheme based on load balancing.It solves the problem of unbalanced allocation of resources at base stations,which leads unbalanced allocation of resources by users and excessive loss of the base station.Scheduling scheme based on power control is proposed for the characteristics of poor load capacity and low power consumption of base stations in heterogeneous cellular networks,which reduces the power consumption of heterogeneous cellular network system on the basis of satisfying users' Qo S.A hybrid coordinated scheduling scheme is proposed to solve the problem of wasting high quality resource in scenarios which are accessed a large number of heavy users.Simulation experiments show that this scheduling scheme can improve the access performance and reduce the power consumption of heterogeneous cellular network system when the users' Qo S is satisfied and the base station is nearly full loaded.