Block-Mode Lattice Reduction for Low-Complexity MIMO Detection

被引：1
|
作者：
Choi, Kwonhue [1 ]
Kim, Hannah [2 ]
Kim, Sooyoung [3 ]
Kim, Young-il [2 ]
机构：
[1] Yeungnam Univ, Dept Informat & Commun Engn, Gyongsan, South Korea
[2] ETRI, Broadcasting & Telecommun Convergence Res Lab, Taejon, South Korea
[3] Chonbuk Natl Univ, Div Elect Engn, Jeonju, South Korea
来源：
ETRI JOURNAL | 2012年 / 34卷 / 01期
关键词：
MIMO; lattice reduction; time varying fading;
D O I：
10.4218/etrij.12.0211.0112
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
We propose a very-low-complexity lattice-reduction (LR) algorithm for multi-input multi-output detection in time-varying channels. The proposed scheme reduces the complexity by performing LR in a block-wise manner The proposed scheme takes advantage of the temporal correlation of the channel matrices in a block and its impact on the lattice transformation matrices during the LR process. From this, the proposed scheme can skip a number of redundant LR processes for consecutive channel matrices and performs a single LR in a block As the Doppler frequency decreases, the complexity reduction efficiency becomes more significant.
引用
收藏
页码：110 / 113
页数：4
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