LTE-Advanced Multi-User MIMO: Improved Feedback and Precoding Design

被引：0
|
作者：
Ghaffar, Rizwan [1 ]
机构：
[1] Natl Univ Sci & Technol, Rawalpindi, Pakistan
来源：
2012 IEEE VEHICULAR TECHNOLOGY CONFERENCE (VTC FALL) | 2012年
关键词：
CHANNELS;
D O I：
暂无
中图分类号：
TN [电子技术、通信技术];
学科分类号：
0809 ;
摘要：
This paper considers feedback and precoding design for multi-user MIMO in long term evolution (LTE) and LTE-Advanced systems. We show that LTE precoders are characterized by a diversity loss, mainly attributed to their characteristic of equal gain transmission (EGT). We therefore propose a precoding design based on marginal increase of feedback and show that the performance of multi-user MIMO comes quite close to the lower bound. We claim that the proposed codebook structure is not only restricted to the framework of LTE and LTE-Advanced, but also applicable as a fundamental design guidance for the ongoing standardizations of modern wireless systems.
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页数：5
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