摘要
在MIMO-OFDM系统中,基于软判决的检测算法其性能要明显优于基于硬判决的检测算法。传统的基于软判决的检测算法由于其很高的复杂度,从而对实现提出了很大的挑战。鉴于此,通过对软输出球形译码检测算法的研究,引入了一种快速有效的单树搜索球形译码检测算法。该算法极大地降低了MIMO软检测的复杂度,已应用于TD-LTE无线综合测试仪表的开发中。
In MIMO-OFDM system, the performance of soft-decision detection algorithms is significantly better than hard-deci- sion detection algorithm. Because the traditional detection algorithm based on soft-decision has high complexity, it results in a great challenge for the realization. Thus ,through researching the soft-output sphere decoding detection algorithm, this paper introduces a fast and effective single tree research sphere decoding detection algorithm. This algorithm greatly reduces the complexity of MIMO soft detection, and has been applied to the TD-LTE wireless integrated test instrument.
出处
《电子技术应用》
北大核心
2012年第11期55-58,共4页
Application of Electronic Technique
基金
国家科技重大专项项目(2009ZX03002-009)
关键词
TD—LTE
信号检测
球形译码
译码复杂度
TD-LTE
signal detection
sphere decoding detection
decoding complexity
