Effects of lattice reordering on Schnorr-Euchner decoding algorithms for MIMO systems

被引：0

作者：

Guo, Z ^{[1
]}

Nilsson, P ^{[1
]}

机构：

[1] Lund Univ, Dept Electrosci, SE-22100 Lund, Sweden

来源：

PROCEEDINGS OF THE FOURTH IASTED INTERNATIONAL CONFERENCE ON COMMUNICATION SYSTEMS AND NETWORKS | 2005年

关键词：

MIMO; VLSI; sphere decoder; Schnorr-Euchner algorithm;

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：

Schnorr-Euchner (SE) decoding algorithm for MIMO systems has been shown to approach the performance of Maximum-likelihood decoder with low complexity. There are two kinds of SE decoder, sequential SE and K-best SE. The lattice reordering, as the preprocessing of the SE decoder, is divided into four modes in this paper, according to post-detection signal-to-noise ratio (SNR) and channel noise level. The numerical complexity and stability of each mode are analyzed. Moreover, the effects of the four preprocessing modes are analyzed on the sequential SE and the K-best SE, respectively. Simulation results show that the complexity of the sequential SE and the K-best SE can be reduced efficiently, if the preprocessing mode is chosen suitably.

引用

页码：1 / 6

页数：6

共 9 条

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