A Semidefinite Relaxation Approach to MIMO Detection for High-Order QAM Constellations
A Semidefinite Relaxation Approach to MIMO Detection for High-Order QAM Constellations
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DOI：
10.1109/lsp.2006.874443
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发表时间：
2006-08
影响因子：
3.9
通讯作者：
N. Sidiropoulos;Z. Luo
中科院分区：
文献类型：
--
作者：
N. Sidiropoulos;Z. Luo
提出了一种新的概念简单的半定松弛方法，用于采用高阶QAM星座的通信系统中的MIMO检测。新方法提供了改进的检测性能相比，现有的解决方案的可比最坏情况的复杂度顺序，这是近立方的尺寸的发送符号矢量和独立的星座顺序的均匀QAM，或仿射的星座顺序的非均匀QAM
A new and conceptually simple semidefinite relaxation approach is proposed for MIMO detection in communication systems employing high-order QAM constellations. The new approach affords improved detection performance compared to existing solutions of comparable worst-case complexity order, which is nearly cubic in the dimension of the transmitted symbol vector and independent of the constellation order for uniform QAM, or affine in the constellation order for nonuniform QAM