| MIMO下行多用户系统的线性预编码设计 | |
| 胡宁 ; 钟晓峰 ; 周世东 ; 王京 ; HU Ning ; ZHONG Xiaofeng ; ZHOU Shidong ; WANG Jing | |
| 2010-05-12 ; 2010-05-12 | |
| 关键词 | 线性预编码 正交投影 斜投影 波束成形 用户调度 linear precoding orthogonal projection oblique projection beam-forming user management TN919.3 |
| 其他题名 | Linear precoding design for MIMO downlink multiuser systems |
| 中文摘要 | 为了消除MIMO下行多用户系统中的共信道干扰,并且最大化合速率,提出了基于斜投影的非正交的预编码,并研究块正交的预编码和完全正交的预编码。斜投影在功率注水前能保持完全信道增益,在功率注水后,块正交的机制优于斜投影机制和完全正交的机制,而且受实际系统中的基站发射天线数的限制,该文将预编码与用户调度相结合,从有效信道增益的角度去研究各种机制。理论分析和数值仿真都表明线性预编码有高性能和低复杂度的特点,具有实用性。; A non-orthogonal precoding based on oblique projection was developed to mitigate co-channel interference and maximize the sum capacity in a multi-user MIMO downlink system. Moreover block diagonalization precoding and complete orthogonal precoding were studied. The oblique projection scheme can hold the channel gain before power water-filling, but the block diagonalization scheme outperforms the oblique projection scheme and the complete orthogonal scheme after power water-filling. Due to limitations on the number of transmit antennas at the base-station, the precoder is integrated with the user scheduling with various schemes used to improve the effective channel gain. Both the theoretical analysis and simulations indicate that linear precoding has good performance with low complexity and practical application. |
| 语种 | 中文 ; 中文 |
| 内容类型 | 期刊论文 |
| 源URL | [http://hdl.handle.net/123456789/28148]  |
| 专题 | 清华大学 |
| 推荐引用方式 GB/T 7714 | 胡宁,钟晓峰,周世东,等. MIMO下行多用户系统的线性预编码设计[J],2010, 2010. |
| APA | 胡宁.,钟晓峰.,周世东.,王京.,HU Ning.,...&WANG Jing.(2010).MIMO下行多用户系统的线性预编码设计.. |
| MLA | 胡宁,et al."MIMO下行多用户系统的线性预编码设计".(2010). |
| 个性服务 |
| 查看访问统计 |
| 相关权益政策 |
| 暂无数据 |
| 收藏/分享 |
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。
修改评论