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恒包络预编码算法研究

The research on CE precoding
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摘要 主要介绍了在大规模MIMO系统中的恒包络预编码算法,描述了该算法提出的背景,介绍了恒包络预编码向量的求解方法。然后重点分析了在非完美信道状态信息条件下的恒包络预编码算法,计算了非完美CSI对恒包络算法的影响,分析表明,该误差所带来的影响与恒包络预编码向量无关,而只与信道估计误差有关,从而可以通过选择合适的估计算法和导频序列,来减少估计误差带来的影响。 The paper mainly introduces the constantenvelope(CE)precoding algorithm in large-scale MIMO system,presents the solution of the CE precoding.The the effects of the imperfect channel state information in constant envelope precoding algorithm are discussed,and analysis shows that the effects caused by the estimation error has nothing to with the CE pre-coding vector,but only decided by the estimation error,which can be mitigated by choosing proper estimation and pilot sequence.
出处 《电子设计工程》 2014年第5期78-80,88,共4页 Electronic Design Engineering
基金 上海市科委基础重点研究项目(11JC1412300) 科技部国际合作项目(2012DFG11580) 国家自然科学基金项目(61271285)
关键词 大规模MIMO 预编码 恒包络 信道估计 导频设计 Masssive MIMO precoding constant envelop channel estimation pilot design
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参考文献10

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