LTE-A CoMP下行多用户调度算法研究  

Research on Downlink Multi-user Scheduling Algorithm of CoMP in LTE-A

作　　者：黄锐[1] 田燕[1] 夏小霞[1] 

机构地区：[1]重庆邮电大学移动通信技术重点实验室,重庆400065

出　　处：《无线电通信技术》2015年第1期28-30,34,共4页Radio Communications Technology

基　　金：重庆市科委项目(CSTC2012jj A40044;CSTC2013yykf A40010);重庆市科委重点实验室专项经费

摘　　要：CoMP是LTE-A中提升小区边缘用户频谱效率和吞吐量的关键技术之一。优良的调度算法能获得一定准则下更大的增益。但是由于基站天线数及所采用预编码算法的限制,在同一时刻可调度的用户数有限,因此,根据什么准则来调度用户是非常重要的。CoMP所采用的多用户调度算法主要从吞吐量、公平性和复杂性等方面来评估。首先介绍了CoMP的基本原理和3种经典的调度算法,重点介绍了几种CoMP多用户调度算法的基本思想和重要步骤,并对其优缺点进行了总结。CoMP is one of the key technologies in LTE-A to improve cell-edge user＇s spectral efficiency and throughput. Excellent scheduling algorithm can achieve larger gain. However,due to the restriction of base station antenna number and the precoding matrix used,only limited number of users can be scheduled at the same time,so the selection of scheduling criteria is very important. CoMP multi-user scheduling algorithms mainly evaluate the performance in throughput,fairness,and complexity,etc. The paper introduces the basic principles of CoMP and three classic scheduling algorithms,discusses in particular the basic ideas and important steps of several CoMP multi-user scheduling algorithms,and summarizes their advantages and disadvantages.

关 键 词：COMP LTE-A 多用户 调度 

分 类 号：TN929.5[电子电信—通信与信息系统]