LTE系统下行MU-MIMO一种自适应调度算法

An MU-MIMO Downlink Adaptive Scheduling Algorithm in LTE System

LTE系统是3G向4G演进的国际一致在研究的方向和系统,国内外对LTE的研究多方多面,但是对于资源调度方面一直都处于摸索发现阶段。当前较为成熟的算法包括正比公平算法,轮询算法等,虽然对系统的整体性能有所提升但是仍然将注意力过多的集中在SU-MIMO上,而没有深入的探究MU-MIMO的更高性能的提升。本文旨在通过探究下行系统一种MU-MIMO的自适应调度算法,进一步提高通信系统整体性能,采用用户配对以及CQI的重计算来实现MU-MIMO的自适应资源调度,并加以计算机仿真分析,从性能结果能看出该方法的易实现性以及优越性。

LTE system is the worldwide well known advanced version from 3Gto4G. However, in terms of all the research aspects, the resource scheduling is still in the discovery level. Nowadays, the more developed research achievements of scheduling are such like PF, RR algorithm, and so on. The shortage of these algorithms is that they still pay most their attention to the SU-MIMO system, rather the MU-MIMO. In this paper, the proposed method aims at the build of downlink resource scheduling which can improve the system performance a lot for MU-MIMO system. Through the simulation of computer, this paper proves the availability and excellence of the proposed method.