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IntroductionThis paper aims to address two problems ithe design of“list sphere detector”(LSD)[1]insystem with no system-level iteration between thMIMO detector and the channel decoder. The firsproblem is how to reduce its complexity. Here it ishown that a much smaller list size can be used ithe soft output is approximated appropriately. Alist size of 40 is adequate for a 4× 4 16QAMVBLAST MIMO system. Compared to a 1 02long list used for the same system in Ref.[1], thilist size redu… 相似文献
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1、柴油机机油应具备的质量 由于汽车使用条件变化范围大，柴油机的压缩比大，爆发做功压力大，工作温度高，机油的工作条件非常苛刻。因此柴油机机油必须具备以下质量要求。 相似文献
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