| 摘要: |
| 采用平均容量性能来定量分析多用户分集多输入多输出(MIMO)中继信道，中继节点
使用放大转发(Amplify-and-forward，AF)协议将接收到的源节点的发送信号重发给目的节
点。研究了多用户MIMO中继信道的不同调度算法，即容量公平、最大特征根、最小特
征根调度策略和空间独立性调度算法，结果表明空间独立性调度算法有最优容量性能。但是
，矢量反馈调度策略的应用使得反向链路容量有较高的反馈负载，而相比于矢量反馈策略，
标量反馈方案的反馈量较小。在选择调度方案的时候要充分考虑到这些特性，权衡利弊并折
衷选择适宜的调度策略。 |
| 关键词: 多用户分集 MIMO 中继信道 调度算法 信道容量 |
| DOI： |
|
| 基金项目:国家自然科学基金资助项目（61071114）; 广东省科技计划项目
（2010A040306004）; 中央高校基本科研业务费专项资金项目（21610205）; 东南大学移动
通信国家重点实验室开放研究基金资助课题（W200915） |
|
| Capacity Analysis of MIMO Relay Channels with Multiuser Diversity under Different Scheduling Policies |
| YANG Liang,WANG Xiao-ling,LIU Ji-ning |
| (Electronic Department,Information Science and Technology Institute,Jinan Univer
sity,Guangzhou 510632，China) |
| Abstract: |
| The performance of average capacity is used to quantitatively analy
se the multipleinput multipleoutput (MIMO) relay channels with multiuser div
er
sity, where relay node uses the amplify-and-forward (AF) protocol to retransmit
the received signal from the source to the destination.The multiu
s
er MIMO relay channel scheduling algorithms such as Capacity Fai
rness Scheduling, Maximal Eigenvalue Scheduling and Minimal Eigenvalue Schedulin
g are studied. It can be conclude that spatial independence of the scheduling a
lgorithm has opt
imal capacity performance. However, the application of vector feedback schedulin
g strategy allows the reverse link capacity of a higher feedback load. Compared
with vector feedback strategy, the scalar feedback strategies have small amount
of
feedback. Therefore, during the actual scheduling, it should take full account
of these characteristics, and then choose the appropriate scheduling policy on b
alance. |
| Key words: multiuser diversity MIMO relay channel scheduling algorithm channel capacity |
